PRACTICE EXAM QUESTIONS AND CORRECT ANSWERS
(VERIFIED ANSWERS) PLUS RATIONALES 2026 Q&A |
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1. What is the minimum distance a crane must maintain from
energized power lines up to 50 kV?
A. 5 feet
B. 10 feet
C. 15 feet
D. 20 feet
Rationale: OSHA and CT regulations require a 10-foot clearance for
lines up to 50 kV to prevent electrocution hazards.
2. Which of the following is considered hoisting equipment in
Connecticut?
A. A wheelbarrow
B. A forklift under 2,000 lbs capacity
C. A mobile crane with a boom over 10 feet or capacity over 2,000 lbs
D. A pallet jack
Rationale: CT defines hoisting equipment as machinery with a boom
or load capacity exceeding 10 feet or 2,000 lbs.
3. What is the primary purpose of an anti-two-block device?
A. To control the swing of the boom
B. To prevent the hook block from contacting the boom tip
,C. To measure load weight
D. To stop the crane from tipping
Rationale: Anti-two-block devices automatically prevent the hook
block from hitting the boom tip, avoiding cable damage.
4. When is a daily inspection of a crane required?
A. Weekly
B. Only before major lifts
C. At the beginning of each shift
D. Monthly
Rationale: Operators must perform and document visual inspections
daily before use to ensure safe operation.
5. Who is responsible for determining the weight of the load before
lifting?
A. The signal person
B. The operator and lift planner
C. The rigger
D. The project manager
Rationale: Operators and planners must confirm load weight does not
exceed the crane’s rated capacity.
6. What must be done if the ground is soft or unstable under the
crane?
A. Operate normally
B. Use mats, cribbing, or stabilizers
C. Add more counterweight
,D. Ignore unless sinking occurs
Rationale: Proper support like mats or cribbing ensures crane stability
and prevents tipping.
7. What document must always be available on a crane?
A. Equipment warranty
B. Load charts
C. Shipping manifest
D. Operator’s log only
Rationale: Load charts are mandatory to determine safe lifting
capacities for each configuration.
8. What is the standard hand signal for “hoist”?
A. Thumb up
B. Forearm vertical, forefinger pointing up, circular motion
C. Arm out, palm down
D. Fist closed, arm extended
Rationale: OSHA standard signals specify a raised forearm with
circular motion for hoisting.
9. A rigger must:
A. Only attach loads
B. Inspect slings and rigging before each use
C. Operate cranes when needed
D. Direct traffic
Rationale: Rigging inspections ensure the safety of load connections
and prevent failure.
, 10. What does the term “rated capacity” mean?
A. Average lifting power
B. The maximum engine output
C. The maximum load under specific conditions
D. Any load the operator feels comfortable with
Rationale: Rated capacity is the manufacturer’s specified safe load
under given conditions.
11. What is the most common cause of crane accidents?
A. Weather
B. Operator error
C. Poor maintenance
D. Power line contact
Rationale: Studies show most crane incidents result from operator
mistakes or judgment errors.
12. What is the minimum age to obtain a CT Hoisting License?
A. 16
B. 17
C. 18
D. 21
Rationale: CT law requires operators to be at least 18 years old to
apply for licensing.
13. Before starting a lift, what should the operator verify with the
signal person?