Verified Multiple Choice and Conceptual Actual
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1. Before bleeding down a hydraulic elevator manually, what must be
confirmed?
ANSWER That the car is safely supported on jack posts and the mainline
disconnect is off.
2. What is the time constant for a circuit with 150KOhms and a 2 microfarad
capacitor? - ANSWER .3 seconds
3. What should be done if a jobsite has standing water in the pit?
ANSWER Do not enter until the pit is pumped out and power is locked
and tagged out.
4. What tool is required when checking continuity in electrical wiring?
ANSWER A multimeter set to the ohms setting.
5. What is the correct procedure if your fall protection harness is involved in a
fall event?
ANSWER Immediately remove it from service and replace it.
,6. What must be installed on an elevator with multiple cars in the same
hoistway before service begins?
ANSWER Barricades and control of all associated mainline disconnects.
7. What does the term “zero energy state” refer to during LOTO?
ANSWER All electrical, mechanical, and hydraulic energy sources are
isolated, locked out, and verified off.
8.
9. What is the minimum clearance required from live electrical parts according
to OSHA and the NEC?
ANSWER 36 inches (914 mm)
10.What causes a hydraulic elevator car to drift downward after being parked?
ANSWER A leaking down valve or bypassing check valve.
11.What is the function of the packing in a hydraulic elevator cylinder?
ANSWER To prevent oil from leaking around the piston rod as it moves.
12.What condition could cause a traction elevator to overspeed while
descending?
ANSWER Worn brake components or excessive counterweight
imbalance.
13.Who is responsible for initiating a Job Hazard Analysis (JHA) or Pre-Task
Plan?
ANSWER The mechanic or lead working on-site prior to starting a task.
,14.When riding on top of a car, which device must always be in control?
ANSWER The car top inspection station.
15.What is the safest method to test if a power circuit is de-energized?
ANSWER Use a properly rated voltage tester or meter after verifying it
on a known live circuit.
16.What’s the function of the slack rope switch in a hydraulic elevator with
roped compensation?
ANSWER To detect slack in the ropes and interrupt power to the pump.
17.What must be done before checking pump drive belts on a hydraulic
elevator - ANSWER Pull the main disconnect switch
18.Which of the following best describes the danger posed be the
counterweight assembly when you are riding the car top? - ANSWER It
run close by in the opposite direction
19.Why must you place a hydraulic elevator car on jack posts before servicing
the packing head? - ANSWER Because a hydraulic elevator is supported
by a column of oil.
20.Why can't Elevator Constructors use a metal ladder? - ANSWER Metal
ladders conduct electricity
, 21.What is the function of a Ground Fault Circuit Interrupter? - ANSWER
To detect and imbalance in current between the hot and nuetral wires
22.How do you determine the correct angle from the vertical for placing a
ladder - ANSWER Measure out a distance of 1/4 the height.
23.Who is required to furnish you the necessary safety equipment? - ANSWER
Your employer
24.What device must be in working condition in order to use an elevator car
sling as a running platform - ANSWER The governor and safeties.
25.What hazardous condition can occur if the weight of the temporary car and
counterweight are not kept nearly equal? - ANSWER Traction could be
lost
26.What is the name of the document that lists the hazards of a substance? -
ANSWER Material Safety Data Sheet or Safety Data Sheet
27.Who is responsible for making sure barricades are kept in place? - ANSWER
Everyone on the job
28.Who is primarily responsible for your safety on the job? - ANSWER You,
Yourself