NEIEP MECHNIC EXAM STUDY GUIDE 1 COMPLETE EXAM QUESTIONS WITH CORRECT ANSWERS (2024/2025) UPDATED VERSION ALREADY GRADED

NEIEP MECHNIC EXAM STUDY GUIDE 1 COMPLETE EXAM QUESTIONS WITH CORRECT ANSWERS (2024/2025) UPDATED VERSION ALREADY GRADED 1. Where should you aim a fire extinguisher to put out a fire? - ANSWER At the base of the fire - 100 2. What door is heavier on bi-parting freight doors? - ANSWER The lower door because of the tucking sill 3. What happens to the break when contact E opens? - 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. 4. In a circuit with capacitance of 5 mf 120v and 200K ohm, how long to fully charge? - ANSWER 5TC 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? - ANSWER The call is bypassed until the car is traveling in the UP direction - 740 5. During construction you land an escalator, but it is 10 mm low, what is wrong? - ANSWER The pit is too deep or column MARK is off - 825 6. During construction the Omega CWT rails have been damaged, what happened? - ANSWER The omegas were over tightened - 215 7. How do you handle a co worker who shows up drunk? - ANSWER Speak with MIC, Call BA, Call supervisor - 100 8. How do you attach brackets to brick? - ANSWER Inserts set back a ¼ inch into the block. Code could call for through bolts 9. What is Selective Collective System? - ANSWER Controller that allows an elevator to bypass calls in the opposite direction of travel. - 740 10. Generator runs at 600 rpm and has 4 poles, what is the output frequency? - ANSWER (RPM/60sec) x ( # of poles/2) (600 rpm/60sec) x (4/2)= 20hz 11. 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? - ANSWER Both must be high - 645 12. Using BINARY logic, what DIP switches must be on for a 128 bit 30 second timer set at 150% - ANSWER 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 1, 3,4,5,6= 45 seconds 13. How many wires are needed for the following circuit? Exclude Spares BCE---SPI/BCD---SP2/BCD---SP4/BCD-BCE---UR2/BCE---DR1/CRE---DR2/GRD - ANSWER 11 wires no need for duplicate wires 14. How must a 9 lead 480/240 motor be wired for High Voltage? - ANSWER L1 ( 1,7) L2 ( 2,8) L3 (3,9) wire nut together (4,5,6) 15. There is voltage at the switch, but none at A, what is wrong? - ANSWER Open at R2 or R1 - 635 16. What does a square with a darkened upper triangle represent? - ANSWER DC Relay Note: Square with a darkened lower triangle = latching relay Note: square with arrow through it = timer relay - 730 17. The close door limit switch is not working, you have power at points 35-8, no voltage at 1-S2 why? - ANSWER Door limit switch malfunction- *Sheet 1 730 prints* 18. Car is running normally, but the Fire Service buzzer will not shut off, Why? - ANSWER EHP 3-2 shorted *Sheet 2 730 prints* 19. Relay STR has voltage, TRU has voltage, RU no voltage, why? - ANSWER TRU 9/8 open * Sheet 3 730 prints* 20. 2nd floor PI lights then quickly shuts off, why? - ANSWER X1 4-6 * Sheet 2 print 730 * 21. Car will not travel to 2 without a 3 call, and will not go down to 3 without a 2 call? - ANSWER 2 F1 4-6 * Sheet 1 print 730* 22. Using sheet 3, why wont the motor start? - ANSWER MOL1 T/B * Sheet 3 print 730* 23. The step level switch on an escalator has been tripped, where do you check? - ANSWER The upper and lower truss assemblies, trips if the step sags more than 1/8 inch. - 825 24. You get a trouble call for an inoperable freight door. What must you do before you begin work? - ANSWER Block open the door, LOTO, and barricades - 540 25. You get shocked when attempting to move a car with a temp run bug, what is the problem? - ANSWER Ground wire not hooked up - 810 26. A Motor needs a sleeve bearing replaced, what type of bearing do you need? - ANSWER Friction bearing AKA sleeve bearing - 420 27. With a 7 foot platform, your inside cab wall clearance is 6'8". What is the thickness or take up of walls? - ANSWER 2 inch thick walls 28. You notice Roughing on the Gov and Tail Sheave. What should you check? - ANSWER Rope diameter - 250 29. Car doors are dragging in the sill, how high should the car doors be above the sill? - ANSWER 1/4 inch - 525 30. What type of safeties are required on a 300fpm car? - ANSWER Type B wedge clamp - 240 31. What stopping devices are required on vertical platforms? - ANSWER 2 pan switches. 15lbs max pressure 32. What type of oil is required for sleeve bearings? - ANSWER Single viscosity SAE 20 33. What is the maximum inclination for moving walks? - ANSWER 12 Degrees - 830 34. How does a GFCI work? - ANSWER Detects imbalance between hot and neutral - 205 35. What is required to provide MSDS or SDS for a solvent you are using? - ANSWER Your Employer - 100 36. How do emergency doors swing? - ANSWER Outwards 37. You have an EMT run with 3-90s, 2-45s, and a saddle bend. What is required? - ANSWER An intermediate pull box. 360 degrees is the most bends for a continuous pipe run. - 505 38. What is the maximum distance between vertical race way supports? - ANSWER 15 feet - 505 39. What is the smallest wire used inside travelers and outside travelers? - ANSWER # 20 awg and #24 awg - 505 40. What is the maximum distance between strain relief supports? - ANSWER 100 ft - 510 41. What is the maximum length motor-generator leads can be outside of a controller? - ANSWER 6 feet - 505 42. In what section of NEC is elevator, escalator, moving walks and dumbwaiters? - ANSWER Article 620 - 505 43. What is the ratio between the loop and diameter of a round traveler? - ANSWER 30 times - 515 44. What are the most common features of a load weigh? - ANSWER Control generator field and inside express operation - 515 45. What is required by ASME on the car top? - ANSWER Inspection station, Light, and Duplex outlet. - 515 46. At what distance from closed does the gate switch operate? - ANSWER 2 inches - 515 47. What is the minimum number of spares that should be pulled? - ANSWER 10 % - 515 48. At what speed should the governor switch contact be set to open? - ANSWER Electrical 90% of tripping speed for 150-500 fpm / 95% of 500 + fpm 49. If the DC output of a 3 phase rectifier is lower than specified, what is the problem? - ANSWER AC fuse is blown. 1 Input phase is missing - 715 50. What is the overlap minimum on 2 and 3 speed doors? - ANSWER Horizontal- 1/2 inch Vertical - 1 inch 51. What are minimum and maximum clearance between sill and car doors? - ANSWER 1/4 inch minimum 3/8 inch maximum - 530 52. What is maximum leading edges for center opening doors? - ANSWER 1/2 inch - 530 53. What is minimum sill to gib engagement? - ANSWER 1/4 inch - 530 54. What is minimum and maximum sill to sill gap? - ANSWER Minimum- 1/2 inch Maximum- 1-1/2 inch - 525 55. 1 gallon equals how many cubic feet? - ANSWER 231 -815 56. How many gallons are need to run a 6" plunger 30'? - ANSWER Area= 3.14 x R2 = 3.14 x6=18.84 Height= (12"x30')=360" Volume= Area x Height= 18.84 x 360"=6782.4 57. A force of 5,000lbs is applied to a plunger with an area of 25 sq in. What is the system pressure? - ANSWER Pressure= Force/ area Area= Force/pressure 5000 lbs/25 sqin= 200 psi - 815 58. What best describes the operation of a typical hydro block valve with elevator parked at the lobby? - ANSWER Down valve: Closed Check valve: Closed Up Valve: open 59. What is the definition of working pressure? - ANSWER Fully loaded to capacity, Full speed running up - 815 60. What is the conversion for kg to pounds? - ANSWER 1 kg = 2.205 lbs 61. On a geared machine the worm and worm gear are made out of what materials? - ANSWER Steel and Bronze 62. What is the purpose of a gear reduction unit on a geared machine? - ANSWER Increased lifting capacity 63. What holds a stopped Hydraulic elevator? - ANSWER Check valve 64. What must be done if you get on top of a dumbwaiter? - ANSWER Never fully get on top. Work only partially on with the mainline disconnect off. 65. How do you measure an escalator handrail? - ANSWER Mark the top and bottom of the inclination, measure in between and mov 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 66. A moving walk has an inclination of 10 degrees, what is the highest angle in can be? - ANSWER 12 degrees for a moving walk 31 degrees for an escalator 67. In a Ward-Leonard system, if all 3 contacts close what will happen? - ANSWER The car run at full speed - 415 68. What type of oil do you put in the machine? - ANSWER Gear oil, non-detergent, single viscosity 69. A 75 ohm resistor has blown, no replacement, how do you fix it? - ANSWER 3 - 225 ohms in parallel . 3- 25 ohm resistors in series. 70. If a Rack and Pinion hoist is not plumb, level and square. What can happen? - ANSWER Set the safeties 71. What are extension tubes used for? - ANSWER Necessary clearance for placement of concrete forms. 72. If a hoist motor is making noise, what is the problem? - 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. 73. What is the area of a 10" plunger? - ANSWER Pie x Radius Squared= Area 3.14x5x5=78.5 74. The escape hutch opens in what direction? - ANSWER From the outside of the car up, preventing people from getting on top of the car 75. What drawing will show how many and location of fixtures? - ANSWER The elevator abstract. Rails, lanterns, push buttons, etc. and quantity, color, material, etc 76. 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? - ANSWER 12x3= 36 floors 3 floors with no P.I.=9 36-9 =27 P.I. needed 77. If an elevator travels 1760 rpm @60 hz, how many hz needed to run at 600 fpm? - ANSWER 20 hz 78. You see a saw tooth wave form when using an oscilloscope out of the encoder, is that good? - ANSWER No 79. What are the hand signals for crane operation? - ANSWER Thumbs out= Boom out, Thumbs in= Boom in; Thumb up= Boom up, Thumb down=Boom down; Finger up clockwise= Hoist up, Finger down counterclockwise= Hoist down; Arm out= Stop 80. You are working on a MOD and have to move the controller to 30 feet farther away, you notice voltage drop, what can be done to increase voltage? - ANSWER Use a larger gauge wire 81. What is the weight of 15 full 16' rails and 2-8' normal rails? - ANSWER 16 x 16' x 15 lbs= 3840 lbs 82. What is an acceptable substitute for the top rail of a barricade? - ANSWER 1/4 inch thick wire rope 83. What is the proper way to test incoming voltage? - ANSWER 3 phase AC using digital meter: L1-L2, L1-L3, L2-L3 Hydro at pump starter. Traction at L1, L2, L3 84. When replacing a PCB in a controller what precautions must be taken? - ANSWER Use a grounding wrist strap, and never remove anything with the power on 85. Who gives you a right to a safe work space? - ANSWER OSHA 86. 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? - ANSWER Underground. Annual static test required for unexposed cylinders 87. What training must be done before you can enter a pit that has been classified as a confined space? - ANSWER Confined space entrant training 88. Traction and Hydraulic machines have many hazards, what is most dangerous? - ANSWER Rotating equipment 89. You are installing a machine and sheave, where would machine and secondary sheaves be aligned? - ANSWER In the center of the rail measurements 90. You are testing an elevator with a rated speed of 500 fpm. What is the minimum speed the safeties should set at? - ANSWER Mechanical: 115% x 500= 575 fpm Electrical: 90% x 575= 517.5 fpm 91. What is one of the most dangerous hazards in the trade and most obvious for us? - ANSWER Falls 92. You are installing machines, governors, and generators, and need to know the location where it needs to be installed. Where would you find the information? - ANSWER The machine room plan view 93. What is the minimum breaking strength of a wire rope used as life safety? - ANSWER 5,000 pounds 94. What is known as the silent killer? - ANSWER CTW 95. 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? - ANSWER Give a reasonable response on time and safety factors. If that doesnt work he can **** off 96. You are preparing to replace a resistor on an out of service car. What is the 1st thing to do? - ANSWER Make sure it is LOTO and verify no voltage 97. What are 3 major factors in hydraulic pit maintenance? - ANSWER Oil, tripping hazards, electricity 98. What is the tolerance for 3/8 at .003? - ANSWER .372- .378 bilateral= 2 direction unilateral= 1 direction 99. You are installing push buttons using snake eye screws. What type of screwdriver? - ANSWER Tamper proof 100. You are working with eye bolts, where would you check for lifting capacity? - ANSWER NEVER use eye bolts for hoisting 101. 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? - ANSWER The mechanical detail drawing 102. 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? - ANSWER Cup screw 103. You have to measure the outside of a pipe. What tool would you use? - ANSWER Caliper Rule 104. You are installing spring buffers on a 200 fpm car, what is the minimum buffer stroke? - ANSWER 200 fpm= 4 inch Note: 100 fpm= 1 1/2 inch Note : 100 fpm- 150 fpm = 2 1/2 inch 105. You are going to replace the disc on your grinder, what test should you do before using? - ANSWER Ring test 106. How often do electrical cords need to be checked for continuity? - ANSWER Every 3 months 107. The DBG is 6'6" using 15 lb rails with 1/4 shim on the brackets, what is DBB? - ANSWER (2) 15 lb rails is 3 1/2 deep= 7" total. (2) 1/4" shims= 1/2" 6'6"+ 7 1/2 = 7 foot 1 1/2 inch 108. How does OSHA classify a competent person? - ANSWER One who is capable of identifying existing and potential hazards, and who has authorization to take prompt, corrective measurements 109. Car weighs 7,000 lbs with a capacity of 3,500 lbs. What does the CWT weight? - ANSWER 3,500 lbsx 40%= 1400 lbs 7000 lbs + 1400 lbs= 8400 lbs 110. You are stacking rails in a single hydro hoist way, with a rise of 48' how many rails will you need? - ANSWER 48'/ 16' = 3 rails per side 3 x2 sides= 6 rails 111. Installing a 3,000 lb capacity car, how much load will the break stop and hold? - ANSWER 125% of rated capacity= 3000 lbs x 125%= 3,750 lbs 112. On traction elevators where are the bottom guide shoes mounted? - ANSWER To the safety plank 113. You have a hoist rated at 3,000 lbs, if you use a double block to single block reeving, what would your total lifting capacity be? - ANSWER 6,000 lbs 114. You need to find the DBG for the car, where would you find this information? - ANSWER Final layout or hoistway plan view drawing 115. 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? - ANSWER Add another or more wraps to the capstan hoist 116. Responding to a call on a hydro, you determine that the 50 amp circuit breaker that feeds the controller has tripped. What component of the elevator has the ability to cause this problem? - ANSWER The pump motor 117. 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? - ANSWER Permeability: ability of a substance to pack magnetic lines of flux in a space 118. You suspect a phasing issue with building power. Which controller device should you check first? - ANSWER Reverse phase relay: detects incoming power loss of phase or phase reversal 119. How do you measure AC voltage on a digital multimeter? - ANSWER Function to VAC Red lead to volt ohm Black lead to common 120. 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 an speed cannot be increased, it is said to be what? - ANSWER Saturated: cannot produce any more magnetic lines of flux 121. What hydro piece uses electrical power using the principle of electromagnetism? - ANSWER Hydro Valve Solenoid: electro- mechanical device operated by a coil and having an iron core steel plunger as an armature 122. Which of the following maintenance procedures addresses the issue of proper DC generator commutation? - ANSWER Continued contact between brushes and commutator 123. Customer is complaining that an older SCR drive powered elevator, is causing noise in the building power lines. What can help reduce the noise? - ANSWER Isolation transformer is used to minimize electrical noise reflected to supply lines 124. In a series circuit with a 10K ohm resistor and a 2mA current, what is voltage? - ANSWER E= R x I= E = 10000 ohm x .002A= E =20v 125. How would you connect an ohm-meter to check load resistance? - 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 126. Exciter voltage comes from what source? - ANSWER Generator 127. Youre pulling (15) #14 awg, (27) #16 awg, (57) # 18 awg wires. How many spares needed? - ANSWER (2) # 14, (3) # 16, (6) #18 = 10% spares required 128. You have (26) 16' 22 lb rails and (2) 8'22 lb rails, what is the total weight of the rails? - ANSWER 27 rails x 16' x 22 lbs= 9504 lbs 129. You need to replace an unmarked single phase transformer with primary voltage at 220 vac current at 5 amp. What size would you need to double it? Note: kVa sizing must be calculated from primary or secondary volt + amp info - ANSWER 2.2 kVa 130. You have attempted to start up a 3 phase AC motor and stalls then hums or growls? - 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 is disrupted, causing loud growl or humming sound 131. Your fluke digital multimeter reads 440 vac, what value are you reading? - ANSWER 440 vac RMS 132. 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? - ANSWER 2 hz frequency from time or period F=1/T F=1/.5= 2hz 133. Customer complains that elevator is having door problem at every floor. Where do you start trouble shooting? - ANSWER The car doors 134. Freight doors are binding because they are hanging out of square, what adjustments can you make? - ANSWER Adjust door track chains 135. You are about to start installing your duct run in the hoist way. What is the best method to give you the straightest line? - ANSWER Using a plumb bob, snap the line, and measure off of the rail 136. When installing multiple traveling cables, where is the first cable located? - ANSWER First is closest to the rail 137. 2 controllers in a small machine room face each other, what is the minimum clearance between them? - ANSWER 36 inches 138. When installing travelers, what is the minimum length of vertical suspension at both ends before the loop starts? - ANSWER 4 feet