Book 29 Ch 4 Elevator Rescue Flashcards
There are numerous (over ___) elevator manufacturers, each having produced a variety of elevators
60
Currently, there are __ types of elevators:
2
Currently, there are two types of elevators:
1. _________ operated elevators
2. _________ operated elevators
- Cable
- Hydraulic
A winding drum type elevator consists of a car attached to __ or more cables that pass around a winding drum and to a moving counterweight
1
DRUM TYPE - Limitations in the length and diameter of the winding drum restricts this type of elevator to ____-foot lifts and slow speeds
150
DRUM TYPE - The equipment room for drum type may be located in a ___________ or on the ______ of a building
Basement
Roof
TRACTION TYPE - Traction type elevators are used for higher ______ and greater _______ than drum type elevators and use a traction sheave instead of a winding drum
Lifts
Speeds
TRACTION TYPE - Since there is less weight and equipment with traction type elevators, the equipment room is usually located on the ______ or above an elevator shaft in high-rise buildings
Roof
HYDRAULIC ELEVATORS - hydraulic elevators are generally limited to __ story buildings
6
HYDRAULIC ELEVATORS - In very old installations, a car is raised or lowered by a ram powered by _______ pressure
Water
HYDRAULIC ELEVATORS - Newer installations use ____ pressure to power a ram
Oil
HYDRAULIC ELEVATORS - Some less modern hydraulic elevators and hydraulic elevators that travel over __ stories may use cables and counterweights
6
The equipment rooms for hydraulic elevators are normally located at the lower level of a building, but can be at any floor level or ___ to ____ feet away from the elevator shaft
50 to 100
Larger than passenger elevators, freight elevators can be as large as ___ feet by ___ feet and have a carrying capacity of up to __ tons
12
14
3
Not being under ____________ control, freight elevators are more simple to operate and control than passenger elevators and normally service an entire building from the lowest to highest level
Computer
Modern elevators utilize __ sets of doors for operation and passenger ingress and
egress
2
________ devices are located at each landing to prevent inadvertent hoistway door openings and to prevent an elevator car from moving unless a door is in a locked position
Safety
There are __ basic types of doors used on elevators
4
_______ ______ doors consists of a hoistway door that is manually opened and a single slide car door that is power operated or a collapsible gate.
Swing Hall
_______ ______ doors are power operated single panel doors
Single Slide
________ _______ doors consist of two power operated panels that part simultaneously with a brisk, noiseless motion
Center Opening
______ ______ doors consist of two power operated panels that are geared together. One door moves twice as fast as the other door so that both doors will meet concurrently in the open position
Two Speed
GIB BLOCKS - They are made of various plastic or _________ materials
Plastic
Phenolic
Gib blocks are approximately __” wide, __” high, ___” thick
3
1
1/2
GIB BLOCKS - are installed every ___-inches across the underside of the door panel
18
Normal hoistway doors can be expected to utilize __ gib blocks
2
A __________ force governor is provided on most elevators to guard against overspeeding (when a car travels in excess of ___% of top speed, the governor will activate a safety stop device)
Centrifugal
20
BRAKES - On elevators capable of high speeds, ________ are forced between two jaws and the vertical rail is gripped with increasing force to slow a runaway elevator car to a gradual stop
Wedges
Do not rescue passengers using forcible entry methods unless they are in need of immediate __________ attention
Medical
If there is power to the elevator, turn the power off for at least ___ seconds and then back on again. This can reactivate the elevator by allowing relays to reset
30
Do not attempt to rescue trapped passengers from an inoperative elevator unless the _______ to the elevator has been disconnected
Power
On hydraulic elevators and some cable elevators, the hoistway doors will open if the elevator is either __ inches above or below the floor level
6
On cable some elevators, the hoistway doors will open if the elevator is either ___ inches above or below the floor level
18
HYDRAULIC ELEVATORS - Most bleeder valves have a manual lowering screw built into the valve and are marked ___, _____, or ________ near the lowering screw
ML
MAN
MANUAL
HYDRAULIC ELEVATORS - Open the bleeder valve slowly, just enough to hear the ________ of fluid flowing, and the elevator car will slowly lower
SOUND
When the car is level or within __ inches of the floor landing, discontinue bleeding the hydraulic fluid by rotating the valve ___________ until the valve is seated. This will stop the car.
6
Clockwise
CABLE ELEVATORS - Use _______ to mark the hub to show movement of the elevator car.
Chalk
Side emergency exits are usually at least ___ inches wide and __ feet high, located so there is free access to the side exit of an adjacent car, will open inward, and are either hinged or removable
16
5
Air bags can be used to force open ________ opening doors when a patient is not stable
Center
AIR LIFTING BAGS - This operation will break the _________ at the top of the doors but causes little or no damage to the car or hoistway doors
Interlocks
REMOVING GIB BLOCKS - On the floor _______ the elevator, cut the gib blocks on one of the hoistway doors
Above
BREACHING ELEVATOR SHAFTS - access panels, may be every __ floors or ___-feet apart
3
80
BREACHING ELEVATOR SHAFTS - If there are no shaft panels and it is necessary to breach the elevator shaft wall, the breach opening(s) should be made on the ___________ _____ door side of the shaft and as near the car door as possible
Elevator Car
If it is necessary to use a ladder from the wall opening to the top of a car, _______ _______ should be considered for use on rescue personnel
Life Lines
Blind Section The part of an elevator shaft that for __ or more consecutive floors has no hoistway doors to access the floors
3
EQUIPMENT ROOM FIRES - When a fire occurs in an elevator equipment room, the probable seat of the fire will be the _________ motor
Driving
ELEVATOR SHAFT FIRES - If the fire is under the car, the car should be brought to the _______ landing possible to reduce the spread of smoke
Lowest
EARTHQUAKES - As a result of the earthquake in Sylmar, California in 1971 and the Northridge, California earthquake in 1994, over ______ elevators were put out of service due to the initial shock and aftershocks
1000
EARTHQUAKES - In the event of an earthquake, all elevators should be _________ with the main power switches and all equipment should be checked for damage prior to attempting to remove passengers.
Stopped
An escalator traveling between 90 to 120 feet per minute can carry as many as ______ passengers per hour
5000
________ Bell - Used to notify occupants of a building there is an elevator problem. A bell is activated by use of an emergency switch on most elevators
Alarm
________ - smoothly decelerate an elevator car and supports it at rest as it passes the lowest floor landing.
Buffers
The movable part of an elevator used to move passengers:
1. ______
2. ______
3. ______
- Car
- Cab
- Cage
__________ - A mechanical device on cable elevators, will cause the electric motor to be shut off and slow the movement of the car and set the brakes on the motor, stopping the car
Governor
Pick-Up Arm Clutch, Vane, Cam, or Bayonet - ___ inches long on hydraulic
14
Pick-Up Arm Clutch, Vane, Cam, or Bayonet - ___ inches long on cable elevators
36
Freight elevators are normally _______ than passenger elevators and can stop at all floors unless a special
override control is activated
Slower
Consider using Heavy Rescue. Their jackhammers will go anywhere a __” hose line will go
1
