Crane Operator Practice Exam Questions And
Correct Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant Download Pdf
1. What is the primary function of a tower crane?
A. Transporting workers
B. Lifting and moving heavy materials vertically and horizontally
C. Excavating soil
D. Drilling concrete
Tower cranes are designed to lift and move heavy loads over
construction sites.
2. Before operating a tower crane, which of the following inspections
is mandatory?
A. Fuel level check only
B. Daily pre-operation inspection of mechanical and safety
systems
C. Visual inspection once a month
D. Electrical system inspection only
Daily inspections ensure the crane is safe to operate and prevent
mechanical failures.
3. Which of the following signals indicates "emergency stop"?
A. One long whistle
B. Two short whistles
, C. Three short blasts
D. Continuous horn
Three short blasts are the standard crane emergency stop signal.
4. The term “load chart” refers to:
A. Schedule of deliveries
B. Diagram showing the maximum load the crane can safely lift
at different boom lengths
C. Maintenance log
D. Operator work hours
Load charts are essential for safe crane operation, preventing
overloading.
5. What is the safest way to approach a load being lifted?
A. From under the load
B. From the side
C. Stay clear of the load and lift path
D. Walk beneath slowly
Never stand under a suspended load; staying clear reduces risk of injury.
6. A crane’s tipping point is affected by:
A. Wind only
B. Load weight, boom length, and crane stability
C. Fuel type
D. Operator experience
The crane’s center of gravity changes with load and boom position,
affecting stability.
, 7. How often should wire ropes be lubricated?
A. Once a year
B. According to manufacturer’s guidelines or when visibly dry
C. Only when frayed
D. Never
Proper lubrication prevents wear and extends rope life.
8. When operating in windy conditions, a crane operator should:
A. Ignore wind speed
B. Follow manufacturer wind-speed limits and stop operations if
exceeded
C. Lift lighter loads only
D. Operate normally
Exceeding wind limits can cause crane instability or load swinging.
9. What is a “tag line” used for?
A. Securing the crane
B. Measuring load weight
C. Controlling the load rotation and swing
D. Signaling the operator
Tag lines help guide loads and prevent uncontrolled swinging.
10. Which part of the crane supports the vertical mast?
A. Jib
B. Counterweight
C. Base and foundation
D. Hoist rope
The base and foundation ensure crane stability by supporting the mast.