Ontario Elevating Devices Mechanic (EDM-A)
Certification Exam Questions And Correct
Answers (Verified Answers) Plus Rationales
2026 Q&A | Instant Download Pdf
1. What is the primary responsibility of an Elevating Devices
Mechanic (EDM-A)?
A. Installing residential electrical systems
B. Maintaining and repairing elevating devices
C. Designing elevator control software
D. Performing structural engineering inspections
Answer: B
EDM-A mechanics are responsible for installation, maintenance,
testing, and repair of elevating devices.
2. Which device is classified as an elevating device under Ontario
regulations?
A. Conveyor belt
B. Escalator
C. Overhead crane
D. Forklift
Answer: B
Escalators are regulated elevating devices in Ontario.
3. Which authority enforces elevating device safety in Ontario?
A. ESA
B. CSA
, C. TSSA
D. MOL
Answer: C
TSSA administers elevating device safety under Ontario law.
4. What is the main purpose of a safety circuit?
A. Increase travel speed
B. Prevent unauthorized access
C. Stop operation when unsafe conditions occur
D. Reduce power consumption
Answer: C
Safety circuits interrupt operation when a hazardous condition is
detected.
5. Which component limits car movement beyond normal travel?
A. Governor
B. Buffer
C. Selector
D. Door operator
Answer: B
Buffers absorb energy if the car travels beyond its normal limits.
6. The governor’s primary function is to:
A. Control leveling accuracy
B. Detect overspeed conditions
C. Regulate voltage
D. Control door timing
Answer: B
Governors activate safety devices during overspeed situations.
, 7. Which voltage is commonly used in elevator control circuits?
A. 600 V
B. 480 V
C. 120 V
D. 12 V
Answer: C
Control circuits typically operate at 120 V or lower.
8. What is the function of guide rails?
A. Support counterweight cables
B. Guide car and counterweight travel
C. Reduce electrical noise
D. Absorb vibration only
Answer: B
Guide rails ensure stable and aligned vertical travel.
9. Which tool is best for checking continuity?
A. Clamp meter
B. Megohmmeter
C. Multimeter
D. Phase rotation tester
Answer: C
A multimeter is commonly used for continuity testing.
10. What condition requires an elevator to be removed from
service immediately?
A. Burned indicator lamp
B. Inoperative safety device
C. Scratched cab wall
D. Dim lighting
Certification Exam Questions And Correct
Answers (Verified Answers) Plus Rationales
2026 Q&A | Instant Download Pdf
1. What is the primary responsibility of an Elevating Devices
Mechanic (EDM-A)?
A. Installing residential electrical systems
B. Maintaining and repairing elevating devices
C. Designing elevator control software
D. Performing structural engineering inspections
Answer: B
EDM-A mechanics are responsible for installation, maintenance,
testing, and repair of elevating devices.
2. Which device is classified as an elevating device under Ontario
regulations?
A. Conveyor belt
B. Escalator
C. Overhead crane
D. Forklift
Answer: B
Escalators are regulated elevating devices in Ontario.
3. Which authority enforces elevating device safety in Ontario?
A. ESA
B. CSA
, C. TSSA
D. MOL
Answer: C
TSSA administers elevating device safety under Ontario law.
4. What is the main purpose of a safety circuit?
A. Increase travel speed
B. Prevent unauthorized access
C. Stop operation when unsafe conditions occur
D. Reduce power consumption
Answer: C
Safety circuits interrupt operation when a hazardous condition is
detected.
5. Which component limits car movement beyond normal travel?
A. Governor
B. Buffer
C. Selector
D. Door operator
Answer: B
Buffers absorb energy if the car travels beyond its normal limits.
6. The governor’s primary function is to:
A. Control leveling accuracy
B. Detect overspeed conditions
C. Regulate voltage
D. Control door timing
Answer: B
Governors activate safety devices during overspeed situations.
, 7. Which voltage is commonly used in elevator control circuits?
A. 600 V
B. 480 V
C. 120 V
D. 12 V
Answer: C
Control circuits typically operate at 120 V or lower.
8. What is the function of guide rails?
A. Support counterweight cables
B. Guide car and counterweight travel
C. Reduce electrical noise
D. Absorb vibration only
Answer: B
Guide rails ensure stable and aligned vertical travel.
9. Which tool is best for checking continuity?
A. Clamp meter
B. Megohmmeter
C. Multimeter
D. Phase rotation tester
Answer: C
A multimeter is commonly used for continuity testing.
10. What condition requires an elevator to be removed from
service immediately?
A. Burned indicator lamp
B. Inoperative safety device
C. Scratched cab wall
D. Dim lighting
