Elevator Mechanic Exam Prep questions
with answers
Know the formula for RPM - ...,.🔹VERIFIED ANSWER
**✔✔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 - ...,.🔹VERIFIED ANSWER **✔✔Bad Ground
Scaffolding, You have 32' of rise, you are using 3x5 scaffolding.
Where will the tie off points be ?
140 PG. 287-288 - ...,.🔹VERIFIED ANSWER **✔✔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
1 \\\/ \\\
39
,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?
240 Pg. 14 - ...,.🔹VERIFIED ANSWER **✔✔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 - ...,.🔹VERIFIED ANSWER **✔✔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
2 \\\/ \\\
39
,The freight door motor is spinning but the door wont move, Why?
535 Pg. 9 - ...,.🔹VERIFIED ANSWER **✔✔The correct lube must
be used on chains.
Read Lula and Dumb waiters
545 Pg 1 - ...,.🔹VERIFIED ANSWER **✔✔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:
3 \\\/ \\\
39
, 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 - ...,.🔹VERIFIED ANSWER **✔✔You never get on top
and you work only partially in with the main line OFF
PI Formula and Gallons (Example) How much oil to move a 6" jack
25'
815 Pg 10 - ...,.🔹VERIFIED ANSWER **✔✔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
4 \\\/ \\\
39
with answers
Know the formula for RPM - ...,.🔹VERIFIED ANSWER
**✔✔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 - ...,.🔹VERIFIED ANSWER **✔✔Bad Ground
Scaffolding, You have 32' of rise, you are using 3x5 scaffolding.
Where will the tie off points be ?
140 PG. 287-288 - ...,.🔹VERIFIED ANSWER **✔✔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
1 \\\/ \\\
39
,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?
240 Pg. 14 - ...,.🔹VERIFIED ANSWER **✔✔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 - ...,.🔹VERIFIED ANSWER **✔✔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
2 \\\/ \\\
39
,The freight door motor is spinning but the door wont move, Why?
535 Pg. 9 - ...,.🔹VERIFIED ANSWER **✔✔The correct lube must
be used on chains.
Read Lula and Dumb waiters
545 Pg 1 - ...,.🔹VERIFIED ANSWER **✔✔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:
3 \\\/ \\\
39
, 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 - ...,.🔹VERIFIED ANSWER **✔✔You never get on top
and you work only partially in with the main line OFF
PI Formula and Gallons (Example) How much oil to move a 6" jack
25'
815 Pg 10 - ...,.🔹VERIFIED ANSWER **✔✔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
4 \\\/ \\\
39
