NEIEP 500 Final Exam: Questions & Answers: Updated
A+ Guide
On a dumbwaiter what provides power o the door buttons? - ANSWERZone contacts
What is the maximum platform area for a hand or power dumbwaiter? - ANSWER9
sq ft.
How many amps can electrocute you? - ANSWER.01 amps
What color are oxygen and acetylene hoses? - ANSWERGreen and red
Can latches be used as interlocks? - ANSWERNo
What two signals does the interlocks on a freight elevator send to the controller? -
ANSWERClosed and locked
What is the dimension of a sill guard - ANSWERMust extend leveling zone plus 3
inches
What is the minimum and maximum size for a vision panel? - ANSWER24 sq ft and 80
sq ft
Can Unitized sill brackets be adjusted left to right? - ANSWERNo, only up and down
What is plugging? - ANSWERPlugging is applying dc to an ac motor to slow the
motor. Plugging applies Dc to windings to generate high counter-emf
What is the distance between strain supports for wire? - ANSWERStrain supports
needed every 100 feet
What are characteristics of interlocks on freight cars? - ANSWERMust be tamper
resistant and must prevent the ability to override the door contacts with the door
open
If there is voltage at the generator armature but not at the motor armature what is
the problem? - ANSWERLoop circuit open
What are IGBTS - ANSWERInsulated gate bipolar transistors, used in VVF door
operators
What is the proper setting for door eccentrics? - ANSWER.005 inches or to barley see
daylight
On a traction elevator with generator control what is the maximum distance the
elevator doors can be unlocked? - ANSWER18 inches
, How do you change direction of an AC motor - ANSWERSwap two of the phases
What is present in a class 1 hazard? - ANSWERFlammable gasses
What is the loop on a 1-1/2inch in diameter traveler? - ANSWER45 inches, times the
diameter of traveler by 30
What is the weight of cast iron and steel per cubic inch? - ANSWERCast iron is .25
and steel is .28 lbs per cubic inch
What is the suicide circuit? - ANSWERTo eliminate residual magentism from the
generator
How is a hydraulic elevator grounded? - ANSWERCar sling isn't insulated, traveling
cable must a permanent ground
How do you maintain switches in a music box? - ANSWERVacuum insides, check
contacts file if needed, check pivot points, rollers
How is runby checked on a hydraulic elevator? - ANSWERRun the elevator onto stop
ring and open door and measure distance car is above top sill
How do you determine what kind of buffer system is needed? - ANSWERSpring
buffers up to 200 fpm, anything over is oil buffers
What is the maximum closing force of a passenger elevator door? - ANSWER30 ft lbs
What are the classes of freight loading? - ANSWERClass a- general freight, 25% of
rated load
Class b- cars, 75% of rated load
Class c- loading with forklift and fork lift can be on
What is special about interlock wire? - ANSWERFlame retardant, rated up to 200 c°
and 392 f°
What are the take ups when bending EMT in 1/2,3/4,1" - ANSWER1/2- 5 inches
3/4- 6 inches
1"- 8 inches
An SCR will not conduct until it is? - ANSWERGated
How many turns of saftey rope need to be on a drum machine after a safety test in
performed? - ANSWERThree turns
What size wire is required for elevator lighting circuit - ANSWER#14
A+ Guide
On a dumbwaiter what provides power o the door buttons? - ANSWERZone contacts
What is the maximum platform area for a hand or power dumbwaiter? - ANSWER9
sq ft.
How many amps can electrocute you? - ANSWER.01 amps
What color are oxygen and acetylene hoses? - ANSWERGreen and red
Can latches be used as interlocks? - ANSWERNo
What two signals does the interlocks on a freight elevator send to the controller? -
ANSWERClosed and locked
What is the dimension of a sill guard - ANSWERMust extend leveling zone plus 3
inches
What is the minimum and maximum size for a vision panel? - ANSWER24 sq ft and 80
sq ft
Can Unitized sill brackets be adjusted left to right? - ANSWERNo, only up and down
What is plugging? - ANSWERPlugging is applying dc to an ac motor to slow the
motor. Plugging applies Dc to windings to generate high counter-emf
What is the distance between strain supports for wire? - ANSWERStrain supports
needed every 100 feet
What are characteristics of interlocks on freight cars? - ANSWERMust be tamper
resistant and must prevent the ability to override the door contacts with the door
open
If there is voltage at the generator armature but not at the motor armature what is
the problem? - ANSWERLoop circuit open
What are IGBTS - ANSWERInsulated gate bipolar transistors, used in VVF door
operators
What is the proper setting for door eccentrics? - ANSWER.005 inches or to barley see
daylight
On a traction elevator with generator control what is the maximum distance the
elevator doors can be unlocked? - ANSWER18 inches
, How do you change direction of an AC motor - ANSWERSwap two of the phases
What is present in a class 1 hazard? - ANSWERFlammable gasses
What is the loop on a 1-1/2inch in diameter traveler? - ANSWER45 inches, times the
diameter of traveler by 30
What is the weight of cast iron and steel per cubic inch? - ANSWERCast iron is .25
and steel is .28 lbs per cubic inch
What is the suicide circuit? - ANSWERTo eliminate residual magentism from the
generator
How is a hydraulic elevator grounded? - ANSWERCar sling isn't insulated, traveling
cable must a permanent ground
How do you maintain switches in a music box? - ANSWERVacuum insides, check
contacts file if needed, check pivot points, rollers
How is runby checked on a hydraulic elevator? - ANSWERRun the elevator onto stop
ring and open door and measure distance car is above top sill
How do you determine what kind of buffer system is needed? - ANSWERSpring
buffers up to 200 fpm, anything over is oil buffers
What is the maximum closing force of a passenger elevator door? - ANSWER30 ft lbs
What are the classes of freight loading? - ANSWERClass a- general freight, 25% of
rated load
Class b- cars, 75% of rated load
Class c- loading with forklift and fork lift can be on
What is special about interlock wire? - ANSWERFlame retardant, rated up to 200 c°
and 392 f°
What are the take ups when bending EMT in 1/2,3/4,1" - ANSWER1/2- 5 inches
3/4- 6 inches
1"- 8 inches
An SCR will not conduct until it is? - ANSWERGated
How many turns of saftey rope need to be on a drum machine after a safety test in
performed? - ANSWERThree turns
What size wire is required for elevator lighting circuit - ANSWER#14
