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MTech Test > Elevator/Escalator Emergencies > Flashcards

Elevator/Escalator Emergencies Flashcards

1
Q

What when in contact with the brake drum holds the elevator at floor level?

A

Brake Shoe

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2
Q

What device is used to connect a circuit with the rotating or moving portion of a DC motor, generator or other electrical device. It carries current to and from the non-moving parts of connections.

A

Brush

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3
Q

What is the device that will stop a descending car or counterweight moving beyond its normal limit of travel?

A

Buffer, either oil or spring type

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4
Q

What is the floor of an elevator car made of?

A

steel or fireproofed wood

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5
Q

What are the different type of elevator car doors?

A
  • Bi-parting
  • Single slide
  • Center opening
  • Two-speed
  • Two-speed center opening
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6
Q

What is the weight of the counterweight equal to?

A

Approx. 70% of the car weight

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7
Q

What is the panel mounted in the car with all the controls called?

A

Car operation station

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8
Q

What is the most widely recognized and used standard for elevators?

A

ANSI A-17.1

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9
Q

What controls the direction, speed and safety mechanisms on the elevator?

A

Controller

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10
Q

What are the hollow, black flexible tubes that are connected to the elevator car and the counterweights? They are filled with solid metal balls. The weight of these cables balances the load of the elevator car.

A

Compensation chain

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11
Q

What opens and closes the car and hoistway doors?

A

Door Operator

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12
Q

What is the power unit which applies the energy necessary to raise and lower an elevator, material lift, or dumb waiter car or to drive an escalator, an inclined lift or a moving walkway

A

Drive Machine

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13
Q

What is the grooved wheel of a traction-type hoisting machine over which the hoist ropes pass called?

A

Drive Sheave

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14
Q

What type of elevator is typically required in a building over 60’ in height?

A

Electric traction elevator

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15
Q

What is the piece of steel mounted on the car cab door that runs between the hoistway door two rollers as the elevator goes up and down the hoistway? This allows the hoistway door and car door to move together when stopped on a floor.

A

Elevator door vane

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16
Q

What prevents the elevator from descending or ascending too low or too high in the shaft?

A

Final limit switch

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17
Q

When does phase 1 recall occur?

A

When a device provides a signal for the immediate recall to a designated landing in order to remove cars from normal use

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18
Q

When does phase II emergency recall occur?

A

When firefighters enter the car and activate the manual controls from within the car.

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19
Q

What is the corridor mounted signal light indicating that a car is approaching that landing and the direction it is traveling?

A

Hall lantern

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20
Q

What is the guard that fits over the outside of the handrail at a pint where the handrail enters or leaves the balustrade called?

A

Handrail Guard

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21
Q

What fire rating should the hoistway have?

A

2 hr

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22
Q

What is the max number of cars per hoistway?

A

4

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23
Q

What is a hoistway blind?

A

Portion of a hoistway that passes floors or landings where no normal landing entrances are provided (also known as a blind shaft)

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24
Q

What height buildings are hydraulic elevators typically found in?

A

Less than 60’

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25
Q

What are the types of hydraulic elevators?

A
  • holed
  • holeless (telescoping)
  • roped hydraulic
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26
Q

Holeless hydraulic elevators are suited for what size buildings?

A

2 stories with less than 14’ of travel between floors

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27
Q

What is the control panel on top of an elevator that allows the car to run at inspection speed when activated from the top of the car only?

A

Inspection station

28
Q

What electro-mechanical device prevents the elevator car rom moving until it locks the hoistway doors?

A

interlock

29
Q

How big is the landing zone?

A

18” below and 18” above the landing

30
Q

How many story buildings is a machine roomless elevator suited for?

A

2-20

31
Q

What converts a building’s AC to DC used by electric traction elevators?

A

motor generator

32
Q

At what point does the over speed governor switch activate?

A

When the motor speed has increased 20% over its rated nameplate speed

33
Q

What is the composure of rope in elevator systems?

A

Hemp rope saturated in lubricant and wrapped in steel wire. 5/8” in diameter, with the ability to support the weight of the elevator plus 10%

34
Q

What are the two types of buffers?

A

Oil or spring type

35
Q

If personnel are working near an open hoistway door what must they have?

A

A lifeline attached

36
Q

Generally a stalled elevator is the result of?

A

Electrical part failure

37
Q

Which is more dangerous poling down or poling up?

A

Poling up

38
Q

Where can a pole across operation be performed from?

A

The interior of the rescue car or from the top of the rescue car

39
Q

When lowering a hydraulic elevator where must you stop it?

A

Do not lower the car past the lowest floor landing and the final limit switch

40
Q

When poling across from on top of the car, if no pulley is present what should crew members secure themselves to?

A

Locking into the cables with lifebelts

41
Q

When the car is placed in inspection mode the speed changes from what to what?

A

2000fpm to 150fpm

42
Q

What is something that one member must be assigned to look out for if operating on top of the car?

A

counter weight

43
Q

Is it safer to remove occupants to the floor above or below the stalled elevator?

A

Floor above

44
Q

Before forcing entry to a car what must be done?

A

Power to all cars in affected hoistway must be removed and all other cars in the hoistway evacuated

45
Q

What approach is a last resort and only to be used under emergency circumstances?

A

Forcing the doors

46
Q

When any person is in the hoistway what must be done?

A

They must be secured with life lines

47
Q

What access hatches are to be used as a last resort when evacuating occupants?

A

Side and roof

48
Q

What is the recommended maximum number of people to be on top of an elevator car?

A

3

49
Q

At what temperature can the elevator rope fail?

A

800

50
Q

When in independent service will the car doors open automatically when arriving at the specified floor?

A

Yes

51
Q

An activation of a smoke detector in elevator lobbies, machine rooms, hoistways, and pits will cause what to happen?

A

The firefighter emergency operation system to activate, indicated by the flashing of the firefighter helmet on the panel in the elevator car and on the lobby panel. FD personnel should not use the affected car(s)

52
Q

When is a time when emergency recall will not work?

A

If a heat detector alarm is received for the elevator machine room or hoistway

53
Q

In the event that a fire alarm is triggered by heat detectors in the elevator machine room or hoistway what happens to the elevator?

A

Immediately stops the car even if it is between floors

54
Q

What does the by-pass position allow the car to do?

A

Car will descend in the shaft while the doors were open

55
Q

If a car fails to stop when in phase II when pressing the stop button what should you do?

A

Attempt to stop the car by forcing the doors open thus interrupting the interlock

56
Q

When using Phase II emergency recall and you have arrived at your destination what should you do to return the car to the lobby?

A

Turn phase II off and leave the keys in the switch

57
Q

When a firefighter enters a car on emergency recall what button should be pressed to clear the floor selection panel?

A

Call cancel button

58
Q

During what mode is the emergency stop button inoperative?

A

Phase I emergency recall

59
Q

How are most elevators numbered?

A

clockwise

60
Q

What should accompany any moving elevator car?

A

Set of forcible entry tools

61
Q

How often should you stop the car to insure emergency recall service is working and that the shaft is clear of smoke, fire or water?

A

Every fifth floor

62
Q

If using hose to slide down to a floor below how should it be connected?

A

First tie the lengths together and then couple them

63
Q

There are usually only two types of escalator entrapments, they are?

A
  • Fingers caught in moving handrail or feet caught in the step at the bottom of the landing (adults more often than children)
  • Clothing becomes entangled in the moving parts
64
Q

What is the first thing to do in an escalator emergency?

A

Shut the power to the unit, emergency shut off is located at the bottom of the escalator under the handrail

65
Q

What is the proper technique to break an escalator step?

A

Hitting the step tread in the middle of the plate

MTech Test (19 decks)

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