Ultimate Mechanics NEIEP Approved Set Exam 2026 Complete questions and Correct Detailed Answers 100% Verified answers) | Already A+ INSTANT PDF DOWNLOAD!!!

Ultimate Mechanics NEIEP Approved Set Exam 2026 Complete questions and Correct Detailed Answers 100% Verified answers) | Already A+ INSTANT PDF DOWNLOAD!!! 1. A contractor wants to raise the car speed from 100fpm to 125fpm, it currently has a 12" sheave. What sheave is required? - Correct Answer-100fpm / 125fpm = 12" / X= 15" 2. A MOV (Metal Oxide Varistor) burns out. You replace it, but cannot read voltage or resistance. What should you do? - Correct Answer-Replace it with a larger MOV 630 3. On a Ward-Leonard circuit the break is set, but the motor is trying to slip through the break. What is the issue? - Correct Answer-Suicide Circuit 425 4. You have an old DC motor and are adding an SCR drive, what do you do to the interpoles? - Correct Answer-Leave the interpoles alone. When adding a SCR drive to the generator, the series loop is removed, as are the 3 resistors. Everything else remains the same. 5. A hydro runs up with no load, but will not run with a full load. What is the issue? - Correct Answer-The relief valve is set too low 815 6. Runby for a 1:1 hits the CWT buffer 4" below the top landing. CWT runby should be set at 18". How much should the ropes be shortened? - Correct Answer-22" 235 7. You need to work on a freight door retiring cam, you LOTO the main line but there is still power on the cam. What circuit is still hot? - Correct Answer-Door Operator Disconnect/ Main Line Disconnect 535 8. The contractor requests that the vertical center of a Rack and Pinion hoist be moved. How do you do this? - Correct Answer-Adjust Tie Downs and Wall Ties 850 9. Working pressure on a Hydro is 400psi. What is the maximum relief valve setting? - Correct Answer-400psi x 150%= 600psi 815 10. What must be installed on a false car before operation? - Correct Answer-Spring Loaded Safeties 110 Mechanics Mechanics 11. There is slight arcing between the brush and commutator. What action must be taken? - Correct Answer-None Note: Heavy arcing=Light brush pressure, Heavy bush pressure=mechanical wear 430 12. If rigging gear is roped 3:1 and a BEAM CLAMP is used to lift a 6,000lb load. What is the beam capacity requirement? - Correct Answer-18,000lbs. Note: Beam capacity is cut in half with use of clamp, when rigging all blocks, rope, and clamps will be Equal to the lowest load rating 210 13. How much resistance is measured over a normally closed switch? - Correct Answer 1.2ohms. should be zero, but will never be that low 14. A car traveling in the hoistway always stops at the same spot and blows a fuse. What causes this - Correct Answer-Traveling cable has a cut/exposed wire or a short 515 15. How is a class 1 yearly buffer test preformed? - Correct Answer-Car at bottom landing and on inspection, jump out direction and final limits. With pit clear, run down to compress buffers, buffers should fully extend within 90 seconds. Note: 5yr: Full load Full speed CWT: Full speed Empty 555 (may be 60 on test) 16. How many strain supports are required on a 350ft raceway? - Correct Answer-4. 1 every 100ft 505-510 17) How is stainless steel drilled out? - Correct Answer-Slow speed and constant pressure 205 18. What is the required amount of retainer clips for wedge shackles and what is the spacing? - Correct Answer-At least 2. First clip being maximum 4 times the diameter of the rope from the top of the shackle, and the second clip is maximum 8 times the diameter of the rope above the first clip. 245 19. A 300ohm resistor burns out, but you don't have another one. How can you make one? - Correct Answer-2-600ohm resistors in parallel is 300ohms. Resistance is half of highest resistor in parallel circuit. 3-225ohm resistors in parallel is 75ohms. 345 20. When cutting laminated panels, which direction should the finish side face? - Correct Answer-Finish side facing the cutting edge of the tool. Blade will burr the backside 255 21. How do you cut a finished floor? - Correct Answer-Cutting blade away from finished side 255 Mechanics Mechanics 22. A 480vac stepdown 240vac transformer is connected to a 3 phase rectifier, what is the output voltage? - Correct Answer-320vac 3 phase full wave = 1.33x output voltage. 715 23) Car is loaded with 125% and sinks. Why? - Correct Answer-Slipping through the break 24. If you find a broken or missing barricade what should you do? - Correct Answer Write up a formal inspection request 25. What are the consequences of misaligned joints on a Rack and Pinion? - Correct Answer-Broken Gear teeth. CWT derailment. Excessive wear/ crease the surface of the tube 850 26. A dumbwaiter is 9sqft in area, 4ft high, and capacity is 13.9lb/ft3. What is total capacity? - Correct Answer-9 x 4 x 13.9= 500lbs Max capacity 27. You must enter a pit with a toxic atmosphere, how do you proceed? - Correct Answer-Following proper OSHA procedure with proper training and PPE 133 28. When changing a 1:1 car rated at 600fpm and 2,000lb capacity to a 2:1, what are the new ratings? - Correct Answer-300fpm 4,000lbs capacity Half the speed, Double the capacity 29. A vertical platform lift has a clearance of 1 inch. How much will it have to move to meet code? - Correct Answer-Move in ¼ inch. Code is ¾ inch 30. A car weighs 2500lbs with a capacity of 2500lbs, the CWT is weighted at 40%, how much is the motor lifting when the car is fully loaded? - Correct Answer-2500(car) + 1000(40%) 3500. =1500lbs lifted by the machine 240 31. How must Oxygen and Acetylene tanks be stored? - Correct Answer-Vertically, 12 feet apart, or on a cart with a ½ hour fire barrier between them 205 32. What is code for sill to sill distance? - Correct Answer-Minimum ½ inch Maximum 1 ½ inches 525 33.When drilling a jack hole in sandy conditions what type of drill rig is required? - Correct Answer-Rotary or Auger bit. Note: Rotary=Soft Percussion=Rocky Combo=Solid 810 34. A customer does not want an escape hatch on a residential elevator, under what condition is this legal? - Correct Answer-Manual operation must be provided 840 Mechanics Mechanics 35. Your helper wired the down direction and final limit switches, now the car will only travel up, what is the issue? - Correct Answer-The down direction limit was wired incorrectly. 36. What are the effects of one rope sitting deeper in the sheave groove? - Correct Answer-The rope wears out and breaks faster 245 37. There is a noise coming from a freight door. The sheave is moving, but the chain is not. What is the problem? - Correct Answer-Oil on the drive chain 535 38. What is the effect when you change a sling angle from 60 degrees to 30 degrees? - Correct Answer-More tension, less capacity. Any angle 30 or less is dangerous 100s 39. How many points of a contact must be maintained on a ladder? How far above the landing must it extend? What steps don't we use? - Correct Answer-3 points of contact. 3 foot above. 4:1. Top 2 steps 132 40. What is the conversion formula when measuring inches to millimeters? - Correct Answer-1" = 25.4mm 41. You open a dumbwaiter access panel and it still runs, what is the problem? - Correct Answer-Pit access switch is not working properly. 550 42. You perform a static load test with the pit valve closed. The car sinks 6" in 15 minutes. What is the problem? - Correct Answer-Cylinder leak 805 520 43. Where should you aim a fire extinguisher to put out a fire? - Correct Answer-At the base of the fire 100s 44. Car with selective collective system is moving to the lobby to take a call, an up call is put in at the 2nd floor, what happens? - Correct Answer-The call is bypassed until the car is traveling up. 740 45. During construction you land an escalator, but it is 10mm low, what is wrong? - Correct Answer-The pit is too deep or column MARK is off. 825 46. During construction the Omega CWT rails have been damaged, what happened? - Correct Answer-The Omegas were over tightened. 215 47. How do you handle a co-worker who shows up drunk? - Correct Answer-Speak with MIC, Call BA, call supervisor. 100s 48. How do you attach brackets to brick? - Correct Answer-inserts set back a ¼ inch into the block. Code could call for through bolts 220 Mechanics Mechanics 49. What is Selective Collective System? - Correct Answer-Controller allows elevator to bypass calls in the opposite direction of travel 740 50. Generator runs at 600rpm and has 4 poles, what is the output frequency? - Correct Answer-(RPM / 60sec) x (number of poles / 2) =(600rpm / 60sec) x (4 / 2) =20hz 51. If a XOR gate was connected to a NOR gate and attached to an AND gate with a High output. What is input of the XOR gate A&B? - Correct Answer-Both must be High 645 52. Using BINARY logic, what DIP switches must be on for a 128 bit 30 second timer set at 150% Note: 1 2 3 4 5 6 7 8 = on or off Note: 1 2 4 8 16 32 64 128 = number of seconds Note: 32 + 8 + 4 +1 = 45 seconds - Correct Answer-1,3,4,6=45 seconds 53. How many wires are needed for the following circuit? Exclude spares. BCE---SPI/BCD---SP2/BCD---SP4/BCD---UR1/BCE---UR2/BCE---DR1/CRE--- DR2/GRD - Correct Answer-11 wires. You do not need the duplicates 54. How must a 9 lead 480/240 motor be wired for High Voltage? - Correct Answer-L1 (1,7) L2 (2,8) L3 (3,9) (4,5,6) (120)__o~~o__R2__A__R1__(GND) 55. There is voltage at the switch, but none at A, what is wrong? - Correct Answer-Open at R2 or R1 635 THE FOLLOWING QUESTIONS (56-62) REQUIRE THE USE OF PRINT 730 56. What does a square with a darkened upper triangle represent? - Correct Answer-DC Relay Note: Square with darkened lower triangle = Latching Relay Note: square with arrow through it = Timer relay 730 THE FOLLOWING QUESTIONS (56-62) REQUIRE THE USE OF PRINT 730 57. The close door limit switch is not working, you have power at points 35-8, no voltage at 1-S2 why? - Correct Answer-Door limit switch malfunction Sheet 1 THE FOLLOWING QUESTIONS (56-62) REQUIRE THE USE OF PRINT 730 59. Relay STR has voltage, TRU has voltage, RU no voltage, why? - Correct Answer TRU 9/8 open Sheet 3 THE FOLLOWING QUESTIONS (56-62) REQUIRE THE USE OF PRINT 730 Mechanics Mechanics 60. 2nd floor PI lights then quickly shuts off, why? - Correct Answer-X1 4-6 Sheet 2 THE FOLLOWING QUESTIONS (56-62) REQUIRE THE USE OF PRINT 730 61. Car will not travel to 2 without a 3 call, and will not go down to 3 without a 2 call? - Correct Answer-2F1 4-6 Sheet 1 THE FOLLOWING QUESTIONS (56-62) REQUIRE THE USE OF PRINT 730 62. Using Sheet 3, why wont the motor start? - Correct Answer-MOL1 T/B Sheet 3 THE FOLLOWING QUESTIONS (56-62) REQUIRE THE USE OF PRINT 730 58. Car is running normally, but the Fire Service buzzer will not shut off, Why - Correct Answer-EHP 3-2 shorted Sheet 2 63. The step level switch on an escalator has been tripped, where do you check? - Correct Answer-The Upper and Lower Truss assemblies, trips if step sags more than 1/8 inch 825 64. You get a trouble call for an inoperable freight door. What must you do before you begin work? - Correct Answer-Block open the door. LOTO. Barricades 540 65. You get shocked when attempting to move a car with a temp run bug, what is the problem? - Correct Answer-Ground wire not hooked up 810 66. A motor needs a sleeve bearing replaced, what type of bearing do you need? - Correct Answer-Friction bearing AKA Sleeve bearing. 420 67. With a 7-foot platform and an inside cab wall clearance of 6'8", what is the thickness or take up of the cab walls? - Correct Answer-2-inch-thick walls 68. You notice Roughing on the Govenor and Tail Sheave. What should you check? - Correct Answer-Rope Diameter 250 69. Car doors are dragging in the sill, how high should the car doors be above the sill? - Correct Answer-¼ inch 525 70. What type of safeties are required on a 300fpm car? - Correct Answer-Type B wedge clamp 240 71. What stopping devices are required on vertical platforms? - Correct Answer-2 pan switches. 15lbs max pressure 72. What type of oil is required for sleeve bearings? - Correct Answer-Single viscosity SAE 20 73. What is the maximum inclination for moving walks? - Correct Answer-12 degrees 830 Mechanics Mechanics 74. How does a GFI work? - Correct Answer-Detects an imbalance between Hot and Neutral Wires 205 75. Who is required to provide MSDS or SDS for a solvent you are using? - Correct Answer-Your employer 100 76. How do emergency doors swing? - Correct Answer-Outwards 77. You have an EMT run with 3-90s, 2-45s, and a saddle bend. What is required? - Correct Answer-An Intermediate pull box. 360 degrees is most bends for a continuous pipe 505 78. What is the maximum distance between vertical race way supports? - Correct Answer-15 feet 505 79. What is the smallest wire used inside travelers and outside of travelers? - Correct Answer-#20awg #24awg 505 80. What is the maximum distance between strain relief supports? - Correct Answer-100 feet 510 81. What is the maximum length Motor-Generator leads can be outside of a controller? - Correct Answer-6 feet 505 82. In what section of NEC is elevator, escalator, moving walks, and dumbwaiters? - Correct Answer-Article 620 505 83. What is the ratio between the loop and diameter of a round traveler? - Correct Answer-30 times 515 84. What are the most common features of a Load Weigh? - Correct Answer-Controls generator field and Inside express operation 515 85. What is required by ASME on the car top? - Correct Answer-Inspection station, Light, and Duplex outlet. 515 86. At what distance from closed does the gate switch operate? - Correct Answer-2 inches 515 87. What is the minimum number of spares that should be pulled? - Correct Answer 10% 515 88. At what speed should the Gov. switch contact be set to open? - Correct Answer Electrical 90% of Tripping speed for 150fpm-500fpm. 95% for +500fpm Mechanics Mechanics 89. If the DC output of a 3 phase rectifier is lower than specified, what is the problem? - Correct Answer-AC fuse is blown. 1 input phase is missing. 715 90. What is the overlap minimum on 2 & 3 speed doors? - Correct Answer-Horizontal ½ inch Vertical 1 inch 530 91. What are minimum and maximum clearance between sill and car doors? - Correct Answer-¼ inch Minimum 3/8-inch Maximum 530 92. What is maximum leading edges for center opening doors? - Correct Answer-½ inch 530 93. What is minimum sill to gib engagement? - Correct Answer-¼ inch 530 94. What is minimum and maximum sill to sill gap? - Correct Answer-½ inch to 1 ½ inch 525 95. 1 gallon equals how many cubic inches? - Correct Answer-231 815 96. How many gallons are needed to run a 6" plunger 30' - Correct Answer-Area = 3.14 x R2 = 3.14 x 9"= 28.26" Height = (12" x 30') = 360" Volume = Area x Height = 28.26 x 360" = 10,173.6 Gallons = 10,173.6 / 231 = 44.04 gallons 815 97. A force of 5,000lbs is applied to a plunger with an area of 25 sq in. What is system pressure? - Correct Answer-Pressure = Force / Area Area= Force / pressure 5000lbs / 25 sq in = 200psi 815 98. What best describes the operation of a typical hydro block valve with the elevator parked at the lobby? - Correct Answer-Down valve: Closed Check valve: Closed Up valve: Open 815 99. What is the definition of working pressure? - Correct Answer-Fully loaded to capacity, Full speed running up 815 100. What is the conversion for kg to pounds? - Correct Answer-1kg=2.205lbs 101. On a geared machine the worm and worm gear are made out of what materials? - Correct Answer-Steel and Bronze 102. What is the purpose of a gear reduction unit on a geared machine? - Correct Answer-Increased lifting capacity Mechanics Mechanics 103. What holds a stopped Hydraulic elevator? - Correct Answer-Check valve 104. What must be done if you get on top of a dumbwaiter? - Correct Answer-Never fully get on top. Work only partially on with the mainline disconnect off 545 105. How do you measure an escalator hand rail? - Correct Answer-Mark the top and bottom of the inclination, measure in between and move the car until the bottom mark is at the top, measure again and continue doing this until you see your 1 mark. The last measurement will be shorter. Add all the measurements together to get your length. 835 106. A moving walk has an inclination of 10degrees, what is the highest angle it can be? - Correct Answer-12degrees escalator 31degrees 830 107. In a Ward-Leonard system, if all 3 contacts close what will happen? - Correct Answer-The car will run at full speed. 415 108. What type of oil do you put in a machine? - Correct Answer-Gear oil, non detergent, single viscosity 109. A 75ohm resistor has blown, no replacement, how do you fix it? - Correct Answer 3-225ohm resistors in parallel. 3-25ohm resistors in series 110. If a Rack and Pinion hoist is not plumb, level and square. What can happen? - Correct Answer-Set the Safeties 850 111. What are extension tubes used for? - Correct Answer-Necessary clearance for placement of concrete forms. 850 112. If a hoist motor is making noise, what is the problem? - Correct Answer-To help prevent distortion to the building AC supply, INDUCTORS can be used on AC input of a solid state drive. Inductors can serve double duty, they operate as Transformers, to match input voltage, or provide voltage isolation. As well as performing filtering on notch effect. 625 113. What is the area of a 10" plunger? - Correct Answer-Area = Pie x Radius Squared = 3.14 x 5 x 5 = 78.5 815 114. The escape hatch opens in what direction? - Correct Answer-From the outside of the car up, preventing people from getting on top of the car 115. What drawing will show how many and location of fixtures? - Correct Answer-The elevator Abstract. Rails, lanterns, push buttons, etc. and quantity, color, material, etc. 175 Mechanics Mechanics 116. You have to order P.I. for a 12 stop building with 3 cars. 3 floors do not have P.I. What is the total number of P.I. you need to order? - Correct Answer-12 x 3 = 36 total floors 3 floors with no P.I. = 9 36 - 9 = 27 P.I. needed 117. If an elevator travels 1760rpm @ 60hz, how many hz needed to run at 600rpm? - Correct Answer-20hz 600rpm / 60hz = 10 Note: assume 4 poles 10 x 2 = 20 425 118. You see a saw tooth wave form when using an oscilloscope out of the encoder, is that good? - Correct Answer-NO. A perfect encoder shows a square wave. Saw tooth, when encoder has fault. 350 630 119. What are the hand signals for crane operation? - Correct Answer-Thumbs out = Boom out, Thumbs in = Boom in Thumb up = Boom up, Thumb down = Boom down Finger up clockwise = Hoist up, Finger down counter clockwise = Hoist down Arm out = Stop 128 120. You are working on a MOD and have to move the controller 30 feet farther away, you notice voltage drop, what can be done to increase voltage? - Correct Answer-Use a larger gauge of wire 121. What is the weight of 15 full 16' rails and 2 - 8' normal 15lb rails? - Correct Answer 16 x 16' x 15lbs = 3840lbs 220 122. What is an acceptable substitute for the top rail of a barricade? - Correct Answer-¼ inch thick wire rope. 123. What is the proper way to test incoming voltage? - Correct Answer-3 phase AC using digital meter: L1-L2, L1-L3, L2-L3 Hydro at pump starter. Traction at L1, L2, L3 715 124. When replacing a PCB in a controller what precautions must be taken? - Correct Answer-Use a grounding wrist strap, and never remove anything with the power on. 645 125. Who gives you a right to a safe work space? - Correct Answer-OSHA 125 126. On an ANNUAL static load test, the car drifts down 15" in 10 minutes. There is no visible oil in the pit, where is the leak coming from? - Correct Answer-Underground. Annual static test required for unexposed cylinders. 800 127. What training must be done before you can enter a pit that has been classified as a confined space? - Correct Answer-Confined space entrant training. 133 Mechanics Mechanics 128. Traction and Hydraulic machines have many hazards, what is most dangerous? - Correct Answer-Rotating Equipment 129. You are installing a machine and sheave, where would machine and secondary sheaves be aligned? - Correct Answer-In the center of the Rail measurements. 230 130 You are testing an elevator with a rated speed of 500fpm. What is the minimum speed the safeties should set at? - Correct Answer-Mechanical:115% x 500=575 fpm Electrical:90% x 575=517.5 fpm 131. What is one of the most dangerous Hazards in the trade and most obvious for us? - Correct Answer-FALLS 105 132. You are installing machines, governors, and generators, and need to know the location where it needs installed. Where would you find the information? - Correct Answer-The machine room plan view 175 133. What is the minimum breaking strength of a wire rope used as Life Safety? - Correct Answer-5,000 pounds 134. What is known as the silent killer? - Correct Answer-Counter weights 135. You go to a trouble call and the building owner keeps asking when the car will be back up and if you can take any short cuts to get it up faster. What is your response? - Correct Answer-Give a reasonable response on time and safety factors. If that doesn't work, he can **** OFF. 136. You are preparing to replace a resistor on an out of service car. What is the 1st thing you do? - Correct Answer-Make sure it is LOTO and verify no voltage. 137. What are 3 major factors in Hydraulic pit maintenance? - Correct Answer-Oil, Tripping hazards, Electricity. 138. What is the tolerance for 3/8 at .003? - Correct Answer-.372-.378 bilateral=2 direction unilateral=1 direction 139. You are installing push buttons using snake eye screws. What type of screwdriver? - Correct Answer-Tamper Proof 205 140. You are working with EYE BOLTS, where would you check for lifting capacity? - Correct Answer-NEVER use eye bolts for hoisting. 141. You are installing the limit cam on the car and notice that the holes are not lining up. Where do you find the correct location for the cam? - Correct Answer-The mechanical detail drawing. 175 Mechanics Mechanics 142. You are on a call and find the pulley came off the pump motor and the set screw is missing, what kind of screw would you use to replace the set screw? - Correct Answer Cup Screw 143. You have to measure the outside of a pipe. What tool would you use? - Correct Answer-Caliper Rule 205 144. You are installing spring buffers on a 200fpm car, what is the minimum buffer stroke? - Correct Answer-200fpm = 4 inch Note: 100fpm = 1 ½ inch Note:100fpm-150fpm = 2 ½ inch 145. You are going to replace the disc on your grinder, what test should you do before using? - Correct Answer-Ring test 130 146. How often do electrical cords need to be checked for continuity? - Correct Answer Every 3 months 129 147. The DBG is 6'6" using 15lb rails with ¼ shim on the brackets, what is DBB? - Correct Answer-(2) 15lb rails are 3 ½ deep = 7" total. (2) ¼" shims = is ½". 6'6" + 7 ½" =7 foot 1 ½ inch 148. How does OSHA classify a competent person? - Correct Answer-One who is capable of identifying existing and potential hazards, and who has authorization to take prompt, Corrective measurements. 125 149. Car weighs 7,000lbs with a capacity of 3,500lbs. what does the CWT weigh? - Correct Answer-3,500lbs x 40%=1,400lbs 7,000lbs + 1,400lbs = 8,400lbs 150. You are stacking rails in a single hydro hoist way, with a rise of 48' how many rails will you need? - Correct Answer-48' / 16' = 3 rail per side 3 x 2 sides = 6 rails 151. Installing a 3,000lb capacity car, how much load will the break stop and hold? - Correct Answer-125% of rated capacity = 3,000lbs x 125% = 3,750lbs 230 152. On traction elevators where are the bottom guide shoes mounted? - Correct Answer-To the safety plank 240 153. You have a hoist rated at 3,000lbs, if you use a double block to single block reeving, what would your total lifting capacity be? - Correct Answer-6,000lbs 210 Mechanics Mechanics 154. You need to find the DBG for the car, where would you find this information? - Correct Answer-Final layout or Hoistway plan view drawing 175 155. You are hoisting rails into the hoist way using a capstan hoist, your apprentice is having a hard time pulling in rails. What can be done to make it easier? - Correct Answer-Add more wraps to the capstan hoist. 210 156. Responding to a call on a hydro, you determine that the 50amp circuit breaker that feeds the controller has tripped. What component of the elevator has the ability to cause this problem? - Correct Answer-The pump motor 157. The motor field windings on a DC motor are wound around a laminated core. The composition of the core material is dependent upon which characteristics? - Correct Answer-Permeability: ability of a substance to pack magnetic lines of flux in a space 415 158. You suspect a phasing issue with building power. Which controller device should you check 1st? - Correct Answer-Reverse phase relay: detects incoming power loss of phase or phase reversal 820 159. How do you measure AC voltage on a Digital Multimeter? - Correct Answer Function to VAC Red lead to Volt ohm Black lead to common 405 160. Sometimes necessary to increase output of a DC generator to over speed an elevator as part of the safety test. If maximum output is reached and speed cannot be increased, it is said to be what? - Correct Answer-Saturated: cannot produce any more magnetic lines of flux 415 161. What hydro piece uses electrical power using the principle of electromagnetism? - Correct Answer-Hydro Valve Solenoid: electro-mechanical device operated by a coil and having an iron core steel plunger as an armature. 815 162. Which of the following maintenance procedures addresses the issue of proper DC generator commutation? - Correct Answer-Continued contact between brushes and commutator 430 163. Customer is complaining that an older SCR drive powered elevator, is causing noise in the building power lines. What can help reduce the noise? - Correct Answer Isolation Transformer used to minimize electrical noise reflected to supply lines 410 164. In a series circuit with a 10K ohm resistor and a 2mA current, what is Voltage? - Correct Answer-E = R x I = E = 10,000ohm x .002A = E = 20v Mechanics Mechanics 165. How would you connect an ohm-meter to check load resistance? - Correct Answer Black to common Red to V ohm Switch at Ohm. No power, take one lead off, connect in parallel, analog needs to be zeroed 166. How would you connect an ohm-meter to check load resistance? - Correct Answer Black to common, Red to V, ohm Switch at Ohm. No power, take one lead off, connect in parallel, Analog needs to be Zeroed 1st 335 167. Exciter voltage comes from what source? - Correct Answer-Generator 425 168. Your pulling (15) #14awg, (27) #16awg, (57) #18awg wires. How many spares needed? - Correct Answer-(2) #14, (3) #16, (6) #18 = 10% spares required 515 169. You have (26) 16' 22lb rails and (2) 8' 22lb rails, what is the total weight of the rails? - Correct Answer-27 rails x 16' x 22lbs = 9504lbs 170. You need to replace an unmarked SINGLE PHASE transformer with primary voltage at 220vac current at 5amp. What size would you need to double it? - Correct Answer-Note: kVa sizing must be calculated from primary or secondary volt + amp info. Single phase kVa = (E x I) / 1,000 kVa = (220vac x 5amp) = 1100kVa 1100kVa / 1000 = 1.1 kVa 2.2 kVa needed to double 171. You have attempted to start up a 3 phase AC motor and stalls then hums or growls? - Correct Answer-If the rotor bar becomes loose at the ring connection, or if the rotor bar cracks, current cannot flow through The bar and the entire rotor field is disrupted, causing loud growl or humming sound 435 172. Your fluke digital Multimeter reads 440vac, what value are you reading? - Correct Answer-440vac RMS 615 173. You have determined that the period of an oscillation that you can feel in the car is .5 seconds. What is the frequency of the oscillation? - Correct Answer-2hz Frequency from time or Period F=1/T F=1/.5=2hz 350 174. Customer complains that elevator is having door problem at every floor. Where do you start trouble shooting? - Correct Answer-The car doors 525 175. Freight doors are binding because they are hanging out of square, what adjustments can you make? - Correct Answer-Adjust door track chains. 535 176. You are about to start installing your duct run in the hoist way. What is the best method to give you the straightest line? - Correct Answer-Using a plumb bob, snap the line, and measure off of the rail. 510 Mechanics Mechanics 177. When installing multiple Traveling cables, where is the 1st cable located? - Correct Answer-1st is closest to the rail. 515 178. 2 controllers in a small machine room face each other, what is the minimum clearance between them? - Correct Answer-36 inches 235 179. When installing travelers, what is the minimum length of vertical suspension at both ends before the loop starts? - Correct Answer-4 feet 515 180. You attempt to adjust a new VV-VF door operator, but it operates in the wrong direction. How do you change the direction? - Correct Answer-Change the phase sequence 530 181. You receive a call that a center opening car is running with one door partially open, how is this possible? - Correct Answer-The gate switch is activated by door drive, but the relating device has failed. 530 182. In order to properly bond an isolation platform, where should you connect your bonding straps - Correct Answer-From the platform to the car sling. 515 183. As a mechanic you are sent to install an escalator, what point of reference would you use to square the unit - Correct Answer-Column LINE 825 184. Escalator demarcation lights are required by code for what reason - Correct Answer-Provides passengers a visual indication when entering and exiting the unit 185 185. While adjusting a passenger elevator door operator with a PERMANENT MAGNENT DC motor. Which operation would you perform to control the motor - Correct Answer-Speed and Torque control is accomplished by varying armature current and voltage 530 186. What does ASME code specify regarding clearance between skirt panel and the side of the step tread - Correct Answer-Skirt board switches required at upper and lower ends. Gap no more than 3/16" 825 187. After receiving an inspection report, one violation is door closing force. After checking you read 50lb of door force, is this code - Correct Answer-How do you make it code compliant? Not code. Code is 30lb. To fix you need to adjust the torque/speed of door operator. 530 188. You momentarily actuate the motor starting relay, the direction of rotation is not correct, what can be done to change rotation direction - Correct Answer-Reverse any 2 leads of incoming motor phases. Mechanics Mechanics 189. Before you can move a piston on a hydro, what precautions must be taken - Correct Answer-Check the piston for debris and tightness of the head, make sure pit is clear. 805 190. You are preparing to hoist the car for cable installation, before doing this, what needs to be installed - Correct Answer-The governor cable 520 191. While on service you observe the mechanical style safety edges on center opening doors bumping into each other, reopening the doors. Where do you need to look to repair this problem - Correct Answer-The safety edge retraction mechanism 530 192. You are about to trouble shoot an elevator that is off, what print would help to make it easier to trace the circuits - Correct Answer-Straight Line Diagram 193. The fuses on a 3 phase input to DC direct drive are open, and the elevator will not run, what needs to be done to check for a shorted SCR - Correct Answer-Remove the SCR, connect +lead to Anode, -lead to cathode, jumper between ANODE & GATE .7v if good. Remove jumper and it should stay on, remove a lead should read infinite 635 194. Trouble shooting a 3 input AND gate, all inputs are high, but the gate output is low. What is the problem - Correct Answer-Faulty gate. Truth table says output should be high. 645 195. Your going to a trouble call you find that the machine room has 2 inches of water in it, what is the first thing you do - Correct Answer-Leave the Machine room 115 196. You find a blown fuse in the DC circuit feeding the door motor. When picking a replacement fuse what should you do - Correct Answer-Compare the blown fuse to the fuse rating in the straight line diagram 530 197. A DC door motor supplied from a 3 phase rectifier runs slow. The DC voltage is normally 320 is 220. What should you do - Correct Answer-Check the fuse feeding the AC rectifier 530 198. There is a call that a traction elevator is stuck in the overhead. In order to get the car down, what circuits do you need to jump out - Correct Answer-The primary safety circuits 720 199. You just pulled multi-cables down the hoistway of a high rise. How should you provide strain relief for the cables - Correct Answer-Required every 100'. Begin at the lowest and work upwards to adjust tension 510 200. Installing Horizontal sliding doors with guides in each door panel, how far must each guide engage the sill gauge - Correct Answer-1⁄4 inch 525 Mechanics Mechanics 201. Your supervisor informs you to change software on a hydro microprocessor board. The software is a 24 pin DIP package. To properly orientate the new chip on the board, what must you do - Correct Answer-Verify that the notch on the dip chip matches the notch on the board 625 202. You need to speed up an AC motor that has a fixed number of poles. How can you speed it up using the RPM formula - Correct Answer-Change the frequency. RPM= 60 x F / P/2 203. You have finished digging a hole hydro, the jack is not on site. What must the hole have on it before you leave - Correct Answer-A welded cover 805 204. A CWT frame weighs 10,000lbs and needs to be increased by 5%. What is the new weight of the frame - Correct Answer-10,000lbs x .05 = 500lbs +10,000 = 10,500lbs 205. You have 32' of rise in scaffolding and are using a 3'x5' base. Where are tie offs - Correct Answer-1st at 12' and cannot be more than 26' apart vertically 30' apart horizontally 206. How is a step level switch on an escalator reset - Correct Answer-Manually 207. What is the Law of Power - Correct Answer-P = E x I 208. What is the maximum voltage drop that can occur across a 500watt resistor carrying 2amps of current - Correct Answer-E = P / I E = 500watt / 2amps = 250volts 209. While testing for a locked rotor condition, what could happen if the testing was carried on for too long - Correct Answer-Damage to the stator or rotor 210. What is needed to coordinate the movement and to dispatch hall calls - Correct Answer-A group controller 211. Where is weight added on a freight door for balancing - Correct Answer-On the top. 212. What door is heavier on bi-parting freight doors - Correct Answer-The lower door because of the tucking sill 213. What happens to the break when contact E opens - Correct Answer-Inserts more break resistance in the circuit, reducing the value of the break current. More resistance to hold the coil up and release current draw. 214. In a circuit with capacitance of 5mf 120v and 200K ohm, how long to fully charge - Correct Answer-5TC .005 x 200 = 1(TC) 1 x 5 = 5 to fully charge. Note:1 time constant = 63.2% 5 time constant = 99% Mechanics Mechanics Shunt Overloads: Parallel connection. Designed to conduct current around mechanical joint Resistive element used in parallel with DC armature movement to bypass calibrated portion of current - Correct Answer- LULA RESI DUMB WAITER Rise: 25' 50' Speed 30fpm 40fpm Capacity 1400lbs 940lbs 500lbs or 13.9lbft3 Area 18sqft 19sqft 9sqft - Correct Answer- Valve Operations: Check valve: oil flow in 1 direction Up valve: controls up start and accel to high speed, up slow down, up level, up stop Down valve: Elevator not running so it depends on system pressure Bypass and Relief: bypass oil if striking obstruction. If relief pressure is too low it will not pick SCR: - Correct Answer- DC door motor control and commonly in direct drives. 3 terminal device acts as on/off switch by pulsing the gate with positive voltage Once on SCR remains on until Anode & Cathode voltage equalizes, or Anode & Cathode are reverse biased, or until voltage is removed from Anode & Cathode - Correct Answer- Amplifiers: Inverting: Op amp(input) supplied to. NEGATIVE Non inverting: Input. POSITIVE Inductance in a DC Break: - Correct Answer- R1 controls rate the magnetic field builds, R1 controls time it takes the break to energize after the BR contact closes. R2 is the discharge path for the break coil. R2 controls the time it takes the break to set when BR opens. R2 controls voltage spikes from the collapsing magnetic lines of the break coil when discharging, thus reducing spikes from reaching other parts of the circuit. - Correct Answer- 1" is equal to ______ cm - Correct Answer-2.54 cm 1" is equal to ______mm - Correct Answer-25.4 mm Circumference Formula - Correct Answer-C = 2πr Area of a circle - Correct Answer-A=πr² Mechanics Mechanics Pressure formula - Correct Answer-Pressure = Force/Area or P = F/A RPM formula - Correct Answer-60 x F /( N/2) where F(frequency is Hz) N is the number of poles Example: what is the rotating speed of a three phase 30 HZ 6 pole motor? 60 x 30hz = •/• 3 poles = 600RPM Time constant formula in resistive capacitive circuit - Correct Answer-T = RC where T is time in sec. R is Resistance and C is Capacitance which is probably is in microfarads Time constant formula in a resistive inductive circuit - Correct Answer-T=L/R Where T is time in seconds, L is inductance in henries and R is reaistance formula for frequency - Correct Answer-f=1/T where T is time(period) in seconds Effective Value (RMS) formula if given peak - Correct Answer-0.707 x peak value Average Value Formula if given peak - Correct Answer-.636 x peak Peak value if given average - Correct Answer-Peak= AVG/0.636 OR Peak= AVG x 1.57 peak to peak value - Correct Answer-2x peak value Peak value when given effective or RMS - Correct Answer-Peak= 1.414 x Effective or RMS Peak to peak value when given RMS or effective - Correct Answer-Peak to Peak= 2.828x RMS Formula for unequal resistances in a parallel circuit - Correct Answer-R= 1/ 1/r1+ 1/r2......... Formula for resistance in series parallel circuit - Correct Answer-Add the resistor in series to the total resistance of resistors in parallel LULA Max Rise - Correct Answer-25 ft. LULA Max Speed - Correct Answer-30 ft. Min LULA Max Capacity - Correct Answer-1400 Lbs. LULA Max Platform Area - Correct Answer-18 sq ft Mechanics Mechanics Residential Elevator Max Rise - Correct Answer-50 ft. Residential Elevator Max Speed - Correct Answer-40 ft. Min Residential Elevator max capacity - Correct Answer-940 lbs. Residential Elevator Max Platform Area - Correct Answer-15 sq. Feet Lula Permanent Mechanical holding device Measurement - Correct Answer-35"-79" above pit floors. 24" minimum above bottom sill Residential elevator pit enclosure height - Correct Answer-84" Lula traction rope size and aircraft cable size - Correct Answer-30x diameter for traction 21x diameter for aircraft cable Hydraulic LULA Overspeed valve Tripping speed - Correct Answer-110%-140% Roped Hydro LULA is required to have safeties and a governor also Residential Elevator Governor Trip Speed - Correct Answer-No more than 75 ft min Lula door type - Correct Answer-Horizontal slide, accordion and bi fold Residential elevator door type - Correct Answer-Allow perforated doors 66" high and can reject 3" diameter ball Residential Private lift escape hatch requirement - Correct Answer-Escape hatch is required if there is no manual operation Private residence residential locked door if no closed hoistway measurement - Correct Answer-Car door must be locked automatically until car is within 6" of floor Max platform size of dumbwaiter - Correct Answer-9 square ft. Dumbwaiter Max cab height - Correct Answer-4' Max door height Dumbwaiter - Correct Answer-54" Max clearance between dumbwaiter cab and hoistway enclosure - Correct Answer-No less than 1/2" Single phase full wave rectifier output equation - Correct Answer-.9x input voltage 3 phase full wave rectifier output voltage equation - Correct Answer-1.33x the input voltage Mechanics Frequency (Hz) formula - Correct Answer-Frequency= RPMx N(number of poles/ 120) RPM to FPM conversion - Correct Answer-(Diameter (in inches) x PIE/12) x RPM = Ft/Min Equation to find inductive reactance - Correct Answer-2piefL Transformer ratio - Correct Answer-Ep/Es=Np/Ns Transformer Efficiency Equation - Correct Answer-Ep/Es=Is/Ip Pit Ladder Regulations - Correct Answer-If pit extends more than 35" a pit ladder must be present. Ladder must extend 48" above sill Ladder rungs must be at least 16" wide Pit stop switch deep pit - Correct Answer-Greater than 67" (deep pit) you need a second stop switch 47" above pit floor Sill guard and toe guard measurements - Correct Answer-Leveling zone plus 3" Low voltage motor connection 9 lead - Correct Answer-L1 T1-T7, L2 T2-T8, L3 T3-T9 T4,T5,T6 wire nutted together High voltage motor wiring 9 lead - Correct Answer-L1-T1, L2-T2, L3-T3 T7-T4, T8-T5, T9-T6 Minimum six for escape hatch - Correct Answer-40 square inches Max gap leading edges of center opening doors - Correct Answer-1/2" Overlap minimum for horizontal sliding doors - Correct Answer-5/8" Vertical distance from door panel to sill - Correct Answer-3/8" Formula for 2 unequal resistances in parallel - Correct Answer-R1xr2/r1+r2 Mechanics