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Elevator Mechanic Exam Prep Questions with Complete Solutions
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Elevator Mechanic Exam Prep Questions with Complete Solutions
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Elevator Mechanic Exam Prep Questionswith Complete Solutions
Know the formula for RPM - Correct Answers ✅RPM = 60 ∙
ƒ ÷ P÷2 =
Step 1. 60 x Frequency (Hz.) =
Step 2. Poles ÷ 2 =
Take answer 1 and ÷ by answer 2 =
You are using a Temp Run Box and you get shocked! Why!
520 Pg. 4 - Correct Answers ✅Bad Ground
Scaffolding, You have 32' of rise, you are using 3x5
scaffolding. Where will the tie off points be ?
140 PG. 287-288 - Correct Answers ✅Scaffolding should be
tied to the structure using
#9 wire or tie-in devices. The first vertical tie
should be at the maximum height of 4 times the
narrowest base dimension. Additional ties are not
to exceed 26' vertically. Maximum horizontal
distance between ties is not to exceed 30'.
How much should Counterweight way?
,Elevator Mechanic Exam Prep Questions
with Complete Solutions
240 Pg. 14 - Correct Answers ✅Counterweights (Typically)
are hung to counter balance the weight of the car PLUS 40%
of Capacity Load.
Pulling Spare Wires (Example) 10% of 52 Wires
515 Pg.26 - Correct Answers ✅Note: We do not use wire
smaller than #20 in travelling cables and #24 outside
travelers.
Largest wires are feeders to Hoist /Pump motor
We always have 10 % spares
10% of 52 = 5.2
On a calculator Multiply the percent 10 by the number you
have and ÷ by 100
10 X 52 ÷ 100 = 5.2
The freight door motor is spinning but the door wont move,
Why?
535 Pg. 9 - Correct Answers ✅The correct lube must be
used on chains.
Read Lula and Dumb waiters
,Elevator Mechanic Exam Prep Questions
with Complete Solutions
545 Pg 1 - Correct Answers ✅Lula: Limited use/Limited
Access (Example Wheelchair Lifts)
Max Rise 25'
Max Speed 30 Ft/Min
Max Capacity 1400 Lbs.
Max Platform Area 18 Sq/Ft.
Residential Elevator:
Max Rise 50 '
Max Speed 40 Ft/min
Max Capacity 940 Lbs.
Max Platform Area 19 Sq/Ft
840 Pg 2
Dumbwaiters:
Platform limited to 9 Sq/Ft
Inside height is limited to no more than 4 Feet
Capacity is limited to 500Lbs
No Riders
If you get on top of Dumbwaiter what must be done?
545 Pg 14 - Correct Answers ✅You never get on top and
you work only partially in with the main line OFF
, Elevator Mechanic Exam Prep Questions
with Complete Solutions
PI Formula and Gallons (Example) How much oil to move a 6"
jack 25'
815 Pg 10 - Correct Answers ✅Notes:(Pi) π is 3.1416 and
231 Cubic inches to the Gallon
Area:
Remember to ÷ 6" ÷ 2 = 3 to get Radius
Area = π∙ r²
Area = 3.1416 x 3 x 3 = 28.27 inches or 3.146 x 9 = 28.27
Volume
Multiple are times height to solve for Volume
V = A∙H
V = 28.27 x 300 (25" feet x 12" = 300)
V = 8481 Cubic Inches
Since we already know there are 231 cubic inches to the
gallon
8481 ÷ 231 = 36.71 Gallons
Relief valve working pressure - Correct Answers ✅Relief
Valve is set at 150% working pressure
SCR Example:
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