ONTARIO ELEVATING DEVICES MECHANIC (EDM-B) CERTIFICATION EXAM QUESTIONS
AND CORRECT ANSWERS (VERIFIED ANSWERS) PLUS RATIONALES 2026 Q&A | INSTANT
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Core Domains
- Safety Protocols and Personal Protective Equipment (PPE)
- Construction Hoist Fundamentals and Types
*- Codes and Standards (CSA Z185, Z256, B44)*
- Mechanical Systems and Installation Practices
*- Electrical Systems and Industrial Electricity*
*- Rigging, Hoisting, and Load Management*
*- Motors, Generators, Controls and AC Drives*
*- Preventive Maintenance and Inspection Procedures*
*- Regulatory Compliance and TSSA Regulations*
*- Ethics and Professional Standards*
Introduction
,This assessment evaluates the comprehensive knowledge and skills required for Ontario Elevating Devices
Mechanic Class B (EDM-B) certification, specifically for Construction Hoist Mechanics. The exam consists of
200 multiple-choice and scenario-based questions designed to test foundational theory, applied professional
knowledge, regulatory compliance, ethics, and real-world decision-making abilities. Candidates must
demonstrate mastery of construction hoist installation, maintenance, testing, and inspection while adhering
to CSA safety codes, TSSA regulations, and industry professional standards. Emphasis is placed on critical
thinking and practical application in field scenarios encountered by construction hoist mechanics.
SECTION ONE: QUESTIONS 1–100
Question 1
What is the primary purpose of wearing a hard hat when working on a construction hoist installation?
A. To improve visibility in low-light conditions
B. To protect against head injuries from falling objects
C. To provide electrical insulation
D. To enhance communication with supervisors
🟢 B. To protect against head injuries from falling objects
🔴 RATIONALE: Hard hats are essential PPE designed specifically to protect workers' heads from impact
injuries caused by falling objects, which is a common hazard in construction hoist work environments.
,Question 2
According to CSA Z185, what is the minimum required clearance between a personnel hoist and the building
structure?
A. 2 inches
B. 4 inches
C. 6 inches
D. 8 inches
🟢 B. 4 inches
🔴 RATIONALE: CSA Z185 Safety Code for Personnel Hoists specifies a minimum 4-inch clearance to prevent
entrapment while allowing for proper operation and alignment tolerances.
Question 3
Which electrical component is used to interrupt power to a hoist motor when an overload condition is detected?
A. Circuit breaker
B. Overload relay
C. Fuse
D. Contactor
🟢 B. Overload relay
, 🔴 RATIONALE: An overload relay is specifically designed to detect current overload conditions and interrupt
power to the motor, providing protection against motor damage from excessive current.
Question 4
What is the maximum safe working load percentage for a hoist cable before it must be replaced?
A. 75%
B. 80%
C. 85%
D. 90%
🟢 C. 85%
🔴 RATIONALE: Industry standards mandate that hoist cables must be replaced when wear reduces their
capacity to 85% of the original safe working load to maintain safety margins.
Question 5
When rigging a load for hoisting, what is the recommended angle between the hoist lines and the vertical?
A. Less than 15 degrees
B. Less than 30 degrees
C. Less than 45 degrees
D. Less than 60 degrees
AND CORRECT ANSWERS (VERIFIED ANSWERS) PLUS RATIONALES 2026 Q&A | INSTANT
DOWNLOAD PDF
Core Domains
- Safety Protocols and Personal Protective Equipment (PPE)
- Construction Hoist Fundamentals and Types
*- Codes and Standards (CSA Z185, Z256, B44)*
- Mechanical Systems and Installation Practices
*- Electrical Systems and Industrial Electricity*
*- Rigging, Hoisting, and Load Management*
*- Motors, Generators, Controls and AC Drives*
*- Preventive Maintenance and Inspection Procedures*
*- Regulatory Compliance and TSSA Regulations*
*- Ethics and Professional Standards*
Introduction
,This assessment evaluates the comprehensive knowledge and skills required for Ontario Elevating Devices
Mechanic Class B (EDM-B) certification, specifically for Construction Hoist Mechanics. The exam consists of
200 multiple-choice and scenario-based questions designed to test foundational theory, applied professional
knowledge, regulatory compliance, ethics, and real-world decision-making abilities. Candidates must
demonstrate mastery of construction hoist installation, maintenance, testing, and inspection while adhering
to CSA safety codes, TSSA regulations, and industry professional standards. Emphasis is placed on critical
thinking and practical application in field scenarios encountered by construction hoist mechanics.
SECTION ONE: QUESTIONS 1–100
Question 1
What is the primary purpose of wearing a hard hat when working on a construction hoist installation?
A. To improve visibility in low-light conditions
B. To protect against head injuries from falling objects
C. To provide electrical insulation
D. To enhance communication with supervisors
🟢 B. To protect against head injuries from falling objects
🔴 RATIONALE: Hard hats are essential PPE designed specifically to protect workers' heads from impact
injuries caused by falling objects, which is a common hazard in construction hoist work environments.
,Question 2
According to CSA Z185, what is the minimum required clearance between a personnel hoist and the building
structure?
A. 2 inches
B. 4 inches
C. 6 inches
D. 8 inches
🟢 B. 4 inches
🔴 RATIONALE: CSA Z185 Safety Code for Personnel Hoists specifies a minimum 4-inch clearance to prevent
entrapment while allowing for proper operation and alignment tolerances.
Question 3
Which electrical component is used to interrupt power to a hoist motor when an overload condition is detected?
A. Circuit breaker
B. Overload relay
C. Fuse
D. Contactor
🟢 B. Overload relay
, 🔴 RATIONALE: An overload relay is specifically designed to detect current overload conditions and interrupt
power to the motor, providing protection against motor damage from excessive current.
Question 4
What is the maximum safe working load percentage for a hoist cable before it must be replaced?
A. 75%
B. 80%
C. 85%
D. 90%
🟢 C. 85%
🔴 RATIONALE: Industry standards mandate that hoist cables must be replaced when wear reduces their
capacity to 85% of the original safe working load to maintain safety margins.
Question 5
When rigging a load for hoisting, what is the recommended angle between the hoist lines and the vertical?
A. Less than 15 degrees
B. Less than 30 degrees
C. Less than 45 degrees
D. Less than 60 degrees
