Elevator Mechanics Exam Review Questions
With 100% Correct Answers
Car running up keep stopping why? Contact is not deenergizing in push button
Third-floor bulbs burn out why? Shorted resistor
Car will not travel to second floor without a third-floor me a call and will not go down from three
without a second-floor hall, what's the problem? 2Fl 4/6
Why won't motor start? MOL1 95/96
Car doors closed and won't run what do you check? Check for voltage at four and five Bad
Transistor
Top barricade can be replaced with? 1/4" Cable
There is voltage at the switch but none at point a what's wrong? Either R1 or R2 open
The door close limit switch is not working do you have power from 35 to term eight. No power from
1 to 52 why? Door limit switch malfunction
Car running normally but the buzzer will not shut off why? EHP 2/3 shorted
Relay STR has voltage. TRU has voltage, RU has no voltage, why? TRU 9/8
Second floor PI illuminates then quickly extinguishes why? X1 4/6
On a machine, what is drilled out first? Secondary sheave
, Dumb waiter takes off before loading why? Non interference
Car levels in 3 inches high in down direction why? Counterweight
In bi-parting doors what gap is allowed before gate switch is open? 3/4"
Pressure switch is wired in what direction - Down directional
What is the tripping speed of counterweight governor? No more than 10% higher
There is excessive sparking on generator why? High Micha
How does interpoles affect the Armature? Reaction
What is the maximum door closing force? 30 lbs and 7 lbs kinetic
What do you do before replacing a relay on a controller? LOTO, Test, and Verify
When are spring buffers used? Less than 200fpm
What are SCR's good for? They are quieter and make less vibration then motor generator set
You have a 200 ohm resistor at 200 Watts what do you replace it with? 75 ohm 200 watt adjustable
resistor
Pump overload keeps tripping. How do you measure amperage? Clamp on meter separately each
wire
Customer complains about a third floor PI bulb burned out, why? Shorted resistor
With 100% Correct Answers
Car running up keep stopping why? Contact is not deenergizing in push button
Third-floor bulbs burn out why? Shorted resistor
Car will not travel to second floor without a third-floor me a call and will not go down from three
without a second-floor hall, what's the problem? 2Fl 4/6
Why won't motor start? MOL1 95/96
Car doors closed and won't run what do you check? Check for voltage at four and five Bad
Transistor
Top barricade can be replaced with? 1/4" Cable
There is voltage at the switch but none at point a what's wrong? Either R1 or R2 open
The door close limit switch is not working do you have power from 35 to term eight. No power from
1 to 52 why? Door limit switch malfunction
Car running normally but the buzzer will not shut off why? EHP 2/3 shorted
Relay STR has voltage. TRU has voltage, RU has no voltage, why? TRU 9/8
Second floor PI illuminates then quickly extinguishes why? X1 4/6
On a machine, what is drilled out first? Secondary sheave
, Dumb waiter takes off before loading why? Non interference
Car levels in 3 inches high in down direction why? Counterweight
In bi-parting doors what gap is allowed before gate switch is open? 3/4"
Pressure switch is wired in what direction - Down directional
What is the tripping speed of counterweight governor? No more than 10% higher
There is excessive sparking on generator why? High Micha
How does interpoles affect the Armature? Reaction
What is the maximum door closing force? 30 lbs and 7 lbs kinetic
What do you do before replacing a relay on a controller? LOTO, Test, and Verify
When are spring buffers used? Less than 200fpm
What are SCR's good for? They are quieter and make less vibration then motor generator set
You have a 200 ohm resistor at 200 Watts what do you replace it with? 75 ohm 200 watt adjustable
resistor
Pump overload keeps tripping. How do you measure amperage? Clamp on meter separately each
wire
Customer complains about a third floor PI bulb burned out, why? Shorted resistor
