1|Page
Ontario (EDM-B) Elevating Devices Mechanic
Certification Exam ACTUAL VERIFIED EXAM
COMPLETE QUESTIONS AND CORRECT ANSWERS
LATEST UPDATE THIS YEAR.pdf||NEWEST EXAM!!!
what are the consequences of misaligned joints on a rack
and pinion? - Answer--Broken gear teeth
-CWT derailment
-excessive wear
-crease the surface tube.
a 480 vac step down 240 vac transformer is connected to
a 3 phase rectifier, what is the output voltage? - Answer-
320 vac
3 phase full wave =1.33x output voltage
1.33 x 240= 319.2
a 300 ohm resistor burns out but you don't have another
one , how can you make one? - Answer-2 - 600 ohm
resistors in parallel is 300 ohms. (resistance is half of the
highest resistor in a parallel circuit)
,2|Page
3 - 225 ohm resistors in parallel is 75 ohms
how is a class1 yearly buffer test performed? - Answer-car
at the bottom landing and on inspection. Jump out
direction and final limits. with the pit clear run down to
compress the buffers. The buffers should fully extend in 90
seconds.
(5 year: full load, full speed)
(CWT: full speed, empty)
you need to work on a frieght door retiring cam, you LOTO
the mainline but there is still power on the cam. What
circuit is still hot? - Answer--Door operator disconnect
-Mainline disconnect.
a contractor wants to raise the car speed from 100 fpm to
125 fpm. it currently has a 12" sheave. What size sheave
is required? - Answer-Diameter = 12"
12/4=3" (25 fpm= 3")
100 fpm + 25 fpm = 12+3 = 15" sheave
,3|Page
What are extension tubes used for? - Answer-Necessary
clearance for placement of concrete forms.
If a hoist motor is making noise, what is the problem? -
Answer-needs inductors
What is the area of a 10" plunger? - Answer-Pie x radius
squared = area
3.14x5x5= 78.5
you are testing an elevator with a rated speed of 500 fpm.
What is the minimum speed the safeties should be set at?
- Answer-Mechanical : 115% x 500 = 575 fpm
Electrical: 90% x 575 = 517.5 fpm
What is the tolerance for 3/8 at .003? - Answer-372-.378
bilateral=2 direction unilateral=1 direction
you are installing the limit cam on the car and notice that
the holes are not lining up. Where do you find the correct
location for the cam? - Answer-The mechanical detail
drawing.
, 4|Page
What is the overlap minimum on 2 and 3 speed doors? -
Answer-horizontal - 1/2"
vertical - 1"
what are the minimum and maximum clearances between
sill and car doors? - Answer-1/4" Minimum
3/8" Maximum
What is the minimum and maximum sill to sill gap? -
Answer-1/2"- 1 1/2"
1 gallon equals how many cubic feet? - Answer-.134 cubic
feet
how many gallons are needed to run a plunger 30'? -
Answer-Convert 30' into inches = 360"
3x3x3.14=28.26
28.26x360=10,173.6
10,173.6/231=44.04 gallons
what is the conversion for Kg to pounds? - Answer-1 Kg =
2.205 pounds
Ontario (EDM-B) Elevating Devices Mechanic
Certification Exam ACTUAL VERIFIED EXAM
COMPLETE QUESTIONS AND CORRECT ANSWERS
LATEST UPDATE THIS YEAR.pdf||NEWEST EXAM!!!
what are the consequences of misaligned joints on a rack
and pinion? - Answer--Broken gear teeth
-CWT derailment
-excessive wear
-crease the surface tube.
a 480 vac step down 240 vac transformer is connected to
a 3 phase rectifier, what is the output voltage? - Answer-
320 vac
3 phase full wave =1.33x output voltage
1.33 x 240= 319.2
a 300 ohm resistor burns out but you don't have another
one , how can you make one? - Answer-2 - 600 ohm
resistors in parallel is 300 ohms. (resistance is half of the
highest resistor in a parallel circuit)
,2|Page
3 - 225 ohm resistors in parallel is 75 ohms
how is a class1 yearly buffer test performed? - Answer-car
at the bottom landing and on inspection. Jump out
direction and final limits. with the pit clear run down to
compress the buffers. The buffers should fully extend in 90
seconds.
(5 year: full load, full speed)
(CWT: full speed, empty)
you need to work on a frieght door retiring cam, you LOTO
the mainline but there is still power on the cam. What
circuit is still hot? - Answer--Door operator disconnect
-Mainline disconnect.
a contractor wants to raise the car speed from 100 fpm to
125 fpm. it currently has a 12" sheave. What size sheave
is required? - Answer-Diameter = 12"
12/4=3" (25 fpm= 3")
100 fpm + 25 fpm = 12+3 = 15" sheave
,3|Page
What are extension tubes used for? - Answer-Necessary
clearance for placement of concrete forms.
If a hoist motor is making noise, what is the problem? -
Answer-needs inductors
What is the area of a 10" plunger? - Answer-Pie x radius
squared = area
3.14x5x5= 78.5
you are testing an elevator with a rated speed of 500 fpm.
What is the minimum speed the safeties should be set at?
- Answer-Mechanical : 115% x 500 = 575 fpm
Electrical: 90% x 575 = 517.5 fpm
What is the tolerance for 3/8 at .003? - Answer-372-.378
bilateral=2 direction unilateral=1 direction
you are installing the limit cam on the car and notice that
the holes are not lining up. Where do you find the correct
location for the cam? - Answer-The mechanical detail
drawing.
, 4|Page
What is the overlap minimum on 2 and 3 speed doors? -
Answer-horizontal - 1/2"
vertical - 1"
what are the minimum and maximum clearances between
sill and car doors? - Answer-1/4" Minimum
3/8" Maximum
What is the minimum and maximum sill to sill gap? -
Answer-1/2"- 1 1/2"
1 gallon equals how many cubic feet? - Answer-.134 cubic
feet
how many gallons are needed to run a plunger 30'? -
Answer-Convert 30' into inches = 360"
3x3x3.14=28.26
28.26x360=10,173.6
10,173.6/231=44.04 gallons
what is the conversion for Kg to pounds? - Answer-1 Kg =
2.205 pounds
