339A Crane Operator Practice Test
Free · 140 Questions.

Question 1

Under the Canadian Occupational Health and Safety Regulations and CSA Z150, who holds ultimate on-site authority to refuse a crane lift if conditions are deemed unsafe?

• A. The structural steel delivery truck driver.
• B. The certified Mobile Crane Operator, following safety rules.
• C. The site general contractor project manager.
• D. The client property owner, under official standards.

Explanation: Under CSA Z150 and provincial OHSA regulations, the crane operator has full authority to refuse any lift that compromises safety or exceeds manufacturer/load chart limitations.

Question 2

What is the primary national Canadian safety standard governing the design, inspection, testing, and maintenance of mobile cranes?

• A. CSA B52 (Mechanical Refrigeration Code), under authorized rules.
• B. CSA Z150 (Safety Code for Mobile Cranes).
• C. CSA B335 (Safety Standard for Lift Trucks).
• D. CSA W59 (Welded Steel Construction), as defined by policy.

Explanation: CSA Z150 is the national consensus standard for mobile cranes in Canada, covering all crawler, truck, rough-terrain, and all-terrain cranes.

Question 3

What is the standard hand signal for 'EMERGENCY STOP' during crane operations under CSA Z150?

• A. Both arms extended horizontally, moving hands rapidly back and forth in a sweeping motion across the chest.
• B. One hand tapping the top of the hard hat repeatedly, following standard statutory compliance and regulatory procedures.
• C. Both arms raised vertically with palms open facing the operator, following standard statutory rules, in compliance with law.
• D. One arm extended with the thumb pointing downward, in accordance with applicable regulatory and safety standards, under standard rules.

Explanation: Emergency stop is signaled by extending both arms horizontally and sweeping both hands rapidly back and forth across the chest. An emergency stop signal must be obeyed immediately regardless of who gives it.

Question 4

What is the standard hand signal for 'HOIST LOAD' (Raise the Hook)?

• A. With forearm vertical and index finger pointing up, move hand in small horizontal circles.
• B. Both fists closed with thumbs pointing toward each other, following standard statutory rules.
• C. Arm extended horizontally with palm open facing downward, pursuant to provincial guidelines, under official standards.
• D. With arm extended downward and index finger pointing down, rotate hand in circles, as required by code.

Explanation: With the forearm vertical and index finger pointing upward, moving the hand in small horizontal circles is the universal signal to hoist the load line.

Question 5

What is the standard hand signal for 'LOWER BOOM' (Boom Down)?

• A. Tapping elbow with opposite hand, following standard statutory rules.
• B. Arm extended horizontally, fingers closed, thumb pointing upward, in compliance with law.
• C. Both hands placed flat on hips, as specified in the official syllabus.
• D. Arm extended horizontally, fingers closed, thumb pointing downward.

Explanation: Extending the arm horizontally with fingers closed and thumb pointing downward indicates 'Boom Down'.