ELEVATOR MECHANIC BUNDLED EXAM
2023-2024 FINAL PAPER FULL QUESTIONS
AND ANSWERS WELL ILLUSTRATED
GRADED A+
⩥ . Answer: In a series parallel circuit How is resistance totaled?
⩥ Continued contact between brushes and commutator. Answer: Which
of the following maintenance procedures addresses the issue of proper
DC Generator commutation?
430 Pg 6'7
⩥ 1.33 Hz.. Answer: A newly modernized car has a noticeable vibration,
The application engineer has asked you to determine the frequency (HZ)
of your 24" drive sheave. (Roped 1:1 with a contract speed of 500 Fpm.)
What is the frequency?
⩥ A Isolation Transformer
Isolation transformers are used to minimize electrical noise from being
reflected back onto supply lines.. Answer: Your customer is complaining
that your older SCR Drive powered elevator is causing noise in the
building power lines. What do you need.
,410 Pg 11
⩥ Ohm Law
E= I∙R
I x R = 20
20 Volt. Answer: In a series circuit with a 10K resistor and a 2mA
current flow , what is the applied Voltage?
⩥ The Black lead is plugged into COMMON
The Red Lead is plugged into vΩ
Set the Switch to Ω
Power removed from the circuit.
At least one lead disconnected from load being measured.
The Ohmmeter is connected in Parallel across the load.
With a digital meter just set and measure. With a Analog meter you have
to zero out the meter by touching leads together.. Answer: How would
you connect on Ohmmeter to check load resistance?
,335 Pg 12
⩥ Power Law
P = V∙ I
500 ÷ 2 = 250 Volts. Answer: What is the Maximum voltage drop that
can occur across a 500 Watt resistor carrying 2 Amps of current?
⩥ Generator. Answer: Exciter voltage comes from what source ?
425 Pg 2
⩥ 10 % is desired of each set of wires
15 x 10 ÷ 100 = 1.5 or 2
27 x 10 ÷ 100 = 2.7 or 3
57 x 10 ÷ 100 = 5.7 or 6
Answer: 2 #14, 3 #16, 6 #18. Answer: When pulling Hoistway wiring a
10% spare is desirable. If the wiring required (15 - #14 Awg) (27 - #16
Awg) (57 - #18Awg)
What is the best selection of wires?
515 Pg 26
⩥ Standard rails are 16Ft. Long
, Each Foot weighs 22Lbs
27 x 16 = 432 total feet of rails
432 x 22lbs per foot = 9504Lbs.. Answer: You receive 26 22Lb. standard
lenght rails and 2 8Ft. sections. How much weight will the rails place on
the floor?
⩥ kVa sizing must often be calculated from Primary or Secondary
Winding Voltage and Amperage information
Formula for single Phase is:
kVA = (V∙I) ÷ 1000
220 Volts x 5 ÷ 1000 = 1.1 KVA
Now Double this
2.2 KVA. Answer: You need to replace an unmarked Single Phase
Transformer who primary voltage is 220 Vac. and field measured current
is 5 Amps. What size transformer would you order if you size it for
twice the field measured values?
Found Online
2023-2024 FINAL PAPER FULL QUESTIONS
AND ANSWERS WELL ILLUSTRATED
GRADED A+
⩥ . Answer: In a series parallel circuit How is resistance totaled?
⩥ Continued contact between brushes and commutator. Answer: Which
of the following maintenance procedures addresses the issue of proper
DC Generator commutation?
430 Pg 6'7
⩥ 1.33 Hz.. Answer: A newly modernized car has a noticeable vibration,
The application engineer has asked you to determine the frequency (HZ)
of your 24" drive sheave. (Roped 1:1 with a contract speed of 500 Fpm.)
What is the frequency?
⩥ A Isolation Transformer
Isolation transformers are used to minimize electrical noise from being
reflected back onto supply lines.. Answer: Your customer is complaining
that your older SCR Drive powered elevator is causing noise in the
building power lines. What do you need.
,410 Pg 11
⩥ Ohm Law
E= I∙R
I x R = 20
20 Volt. Answer: In a series circuit with a 10K resistor and a 2mA
current flow , what is the applied Voltage?
⩥ The Black lead is plugged into COMMON
The Red Lead is plugged into vΩ
Set the Switch to Ω
Power removed from the circuit.
At least one lead disconnected from load being measured.
The Ohmmeter is connected in Parallel across the load.
With a digital meter just set and measure. With a Analog meter you have
to zero out the meter by touching leads together.. Answer: How would
you connect on Ohmmeter to check load resistance?
,335 Pg 12
⩥ Power Law
P = V∙ I
500 ÷ 2 = 250 Volts. Answer: What is the Maximum voltage drop that
can occur across a 500 Watt resistor carrying 2 Amps of current?
⩥ Generator. Answer: Exciter voltage comes from what source ?
425 Pg 2
⩥ 10 % is desired of each set of wires
15 x 10 ÷ 100 = 1.5 or 2
27 x 10 ÷ 100 = 2.7 or 3
57 x 10 ÷ 100 = 5.7 or 6
Answer: 2 #14, 3 #16, 6 #18. Answer: When pulling Hoistway wiring a
10% spare is desirable. If the wiring required (15 - #14 Awg) (27 - #16
Awg) (57 - #18Awg)
What is the best selection of wires?
515 Pg 26
⩥ Standard rails are 16Ft. Long
, Each Foot weighs 22Lbs
27 x 16 = 432 total feet of rails
432 x 22lbs per foot = 9504Lbs.. Answer: You receive 26 22Lb. standard
lenght rails and 2 8Ft. sections. How much weight will the rails place on
the floor?
⩥ kVa sizing must often be calculated from Primary or Secondary
Winding Voltage and Amperage information
Formula for single Phase is:
kVA = (V∙I) ÷ 1000
220 Volts x 5 ÷ 1000 = 1.1 KVA
Now Double this
2.2 KVA. Answer: You need to replace an unmarked Single Phase
Transformer who primary voltage is 220 Vac. and field measured current
is 5 Amps. What size transformer would you order if you size it for
twice the field measured values?
Found Online
