9948320
Descripción
Test por pmefford ., actualizado hace más de 1 año
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Creado por pmefford .
hace casi 7 años
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Pregunta 1
Pregunta
The maximum supply voltage shall not exceed ______ between conductors unless otherwise permitted.
Respuesta
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300 Volts
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600 Volts
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800 Volts
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1000 Volts
Pregunta 2
Pregunta
The first edition of the 17.1 code was published in what year?
Respuesta
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1919
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1920
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1921
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1922
Pregunta 3
Pregunta
What Section of NFPA 70 pertains to Elevators, Dumbwaiters, Escalators, Moving Walks, Platform Lifts, and Stairway Chairlifts?
Respuesta
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400
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525
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625
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620
Pregunta 4
Pregunta
Each 125-volt, single-phase, 15- and 20-ampere receptacle installed in pits, in hoistways, on elevator car tops, and in escalator and moving walk wellways shall be of the _____________________________type.
Respuesta
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ground-fault circuit-interrupter
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socket
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plastic
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momentary on/off
Pregunta 5
Pregunta
Per NFPA 70, Ground means:
Respuesta
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Conductors connected to close an open circuit.
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Earth.
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A 5/8's copper rod fully driven in the ground.
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A 4/0 or larger conductor attached from the supply source to a ground rod.
Pregunta 6
Pregunta
To whom is the maintenance control program required to be accessible?
Respuesta
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Contractors' Maintenance personnel
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Elevator personnel
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Building Supervisor
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QEI certifying organization
Pregunta 7
Pregunta
Final Terminal Stopping Devices for Screw-Elevators shall be provided for elevators having a rated speed exceeding:
Respuesta
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0.5m/s (100 ft/min)
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150 ft/,min
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0.05m/s (100ft/min)
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0.6m/s (120ft/min)
Pregunta 8
Pregunta
Which of the following should you do when operating a mainline power disconnect switch?
Respuesta
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Reach across the front of the disconnect while facing away from the disconnect
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Stand in front of the disconnect with you back to the disconnect.
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Stand off to the side of the disconnect
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Ensure that you are standing on a rubber mat
Pregunta 9
Pregunta
What article in NEC 2014 covers hazardous (classified ) locations?
Respuesta
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100
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490
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500
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600
Pregunta 10
Pregunta
For existing elevator interiors, what is the minimum number of lamps required for car illumination?
Respuesta
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1
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2
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3
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4
Pregunta 11
Pregunta
What is required of a maintenance control program?
Respuesta
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It must be written
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It must be approved by the building owner
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It must be electronic
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It Must be endorsed by the equipment manufacturer
Pregunta 12
Pregunta
The audible and visual equipment such as chimes, gongs, lights and displays that convey information to the user is defined as what?
Respuesta
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operating device
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control system
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signal equipment
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controller operation
Pregunta 13
Pregunta
When performing maintenance on an escalator, what is required if the escalator comb has two adjacent teeth missing?
Respuesta
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The AHJ must be notified
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The emergency stop button should be pushed
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The unit may be operated only in the direction away from the combplate
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The escalator must be removed from service
Pregunta 14
Pregunta
Speed governors for passenger car safeties shall be set to trip at a car speed of what?
Respuesta
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Not less than 110% of rated speed
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Not less than 112% of rated speed
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Not less than 115% of rated speed
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not less than 125% of rated speed
Pregunta 15
Pregunta
When jumpers are used during maintenance, repairs, or testing, all jumpers shall be ______________ and the equipment ______________ prior to returning it to service.
Respuesta
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removed / tested
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jumped / shut off
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shorted / fried
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unhooked / looked at
Pregunta 16
Pregunta
The lower portion of a platform guard shall be bent back at an angle of not less than __________degrees nor more than _______ degrees from the horizontal.
Respuesta
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25 and 50
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45 and 75
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60 and 80
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60 and 75
Pregunta 17
Pregunta
Every elevator shall be provided with a _________________ and a _________________ permanently and securely attached.
Respuesta
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capacity plate / data plate
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capacity plate / dinner plate
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lounge chair / ash tray
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capacity sticker / data sticker
Pregunta 18
Pregunta
Hand elevator suspension means shall consist of not less than ______ wire ropes or chains.
Respuesta
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1
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2
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3
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4
Pregunta 19
Pregunta
____________ shall be provided in the entrance assembly to prevent hangers from overrunning the end of the track.
Respuesta
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Free Coffee
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pins
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buffers
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stops
Pregunta 20
Pregunta
What type of floor shall be provided at the top of the hoistway where a machine room or control room is located above the hoistway.
Respuesta
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Metal or Concrete
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Wood or drywall
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fireproof
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flameproof
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