Elevator Mechanic Exam | 100%
Correct Answers | Grade A+
• You are using a Temp Run Box and you get shocked! Why!
520 Pg. 4 -✓✓Bad Ground
• Scaffolding, You have 32' of rise, you are using 3x5 scaffolding.
Where will the tie off points be ?
140 PG. 287-288 -✓✓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?
240 Pg. 14 -✓✓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 -✓✓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 -✓✓The correct lube must be used on chains.
• Read Lula and Dumb waiters
545 Pg 1 -✓✓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 -✓✓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 -✓✓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 -✓✓Relief Valve is set at 150% working
pressure
• SCR Example:
635 Pg 14 Figure 26 -✓✓A Meter with the positive lead on the Anode
and the negative lead on the Cathode.
A jumper is placed across the Anode and Gate as well
This should show .7 Volts an indication of a Good SCR
• Ward Leonard System
425 Pg 7,17 -✓✓When the Generator and Hoist motor armature are
connected in parallel they form a closed loop.In this configuration car
speed is controlled by controlling the amount of current passing thru the
generator shunt field.
Correct Answers | Grade A+
• You are using a Temp Run Box and you get shocked! Why!
520 Pg. 4 -✓✓Bad Ground
• Scaffolding, You have 32' of rise, you are using 3x5 scaffolding.
Where will the tie off points be ?
140 PG. 287-288 -✓✓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?
240 Pg. 14 -✓✓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 -✓✓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 -✓✓The correct lube must be used on chains.
• Read Lula and Dumb waiters
545 Pg 1 -✓✓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 -✓✓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 -✓✓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 -✓✓Relief Valve is set at 150% working
pressure
• SCR Example:
635 Pg 14 Figure 26 -✓✓A Meter with the positive lead on the Anode
and the negative lead on the Cathode.
A jumper is placed across the Anode and Gate as well
This should show .7 Volts an indication of a Good SCR
• Ward Leonard System
425 Pg 7,17 -✓✓When the Generator and Hoist motor armature are
connected in parallel they form a closed loop.In this configuration car
speed is controlled by controlling the amount of current passing thru the
generator shunt field.
