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IIination Exam
Question 1. Which is the first step in a crane pre-operation inspection? A) Checking the load chart B) Inspecting rigging hardware C) Reviewing the crane’s maintenance log D) Verifying ground conditions Answer: C Explanation: The maintenance log should be reviewed first to ensure there are no outstanding maintenance issues before conducting a physical inspection. Question 2. What is the primary purpose of daily crane inspections? A) To fulfill OSHA paperwork requirements B) To identify potential hazards before operation
IIination Exam
C) To calibrate the crane D) To update crane registration Answer: B Explanation: Daily inspections help identify hazards or defects that may compromise safe crane operation. Question 3. Which of the following must be checked during a weekly inspection but not necessarily every day? A) Wire rope condition B) Tire pressure C) Boom lubrication points D) Engine oil level Answer: C
IIination Exam
Question 5. If a crane’s anti-two block device is not functioning, what should the operator do? A) Proceed with caution B) Tag out the crane until repaired C) Continue using hand signals D) Increase load radius Answer: B Explanation: The anti-two block device is a critical safety feature; if inoperable, the crane must be tagged out of service. Question 6. What should you do if you notice a hydraulic oil leak during a pre-operational check? A) Clean the area and proceed
IIination Exam
B) Report and repair before operation C) Top off hydraulic oil and continue D) Ignore if the leak is small Answer: B Explanation: Hydraulic leaks can cause operational failure and must be addressed before using the crane. Question 7. Which of the following is a sign of excessive wear on wire rope? A) Uniform diameter B) One or two broken wires in one lay C) Birdcaging or kinking D) Slight discoloration
IIination Exam
Question 9. What is the greatest hazard when operating a crane near power lines? A) Tripping B) Electrical arcing C) Equipment theft D) Hydraulic failure Answer: B Explanation: Cranes contacting or getting close to power lines can cause electrical arcing, leading to severe injury or death. Question 10. According to OSHA, what is the minimum clearance from energized power lines up to 50kV? A) 5 feet
IIination Exam
B) 10 feet C) 15 feet D) 20 feet Answer: B Explanation: OSHA requires a minimum of 10 feet clearance from power lines up to 50kV. Question 11. A ground condition inspection should include checking for: A) Paint color B) Underground utilities C) Operator certification D) Weather forecast
IIination Exam
Question 13. What is the purpose of a load chart? A) To track operator hours B) To determine the crane’s lifting capacity under specific configurations C) To schedule maintenance D) To document inspections Answer: B Explanation: Load charts specify the safe working loads for various crane configurations. Question 14. Which factor must be considered when reading a load chart? A) Operator age B) Boom length and angle
IIination Exam
C) Weather forecast D) Wire rope color Answer: B Explanation: Boom length and angle directly affect the crane's lifting capacity per the load chart. Question 15. Which load chart deduction must be made when using a jib attachment? A) Add counterweight B) Subtract jib weight from gross capacity C) Ignore radius D) Reduce outrigger width Answer: B
IIination Exam
Question 17. Counterweight installation affects crane capacity by: A) Lowering the center of gravity and increasing capacity B) Reducing outrigger effectiveness C) Increasing boom length D) Eliminating the need for load charts Answer: A Explanation: Proper counterweight installation increases crane stability and lifting capacity. Question 18. What should an operator do if unsure about a load chart’s configuration? A) Estimate capacity B) Use the lowest capacity listed
IIination Exam
C) Ask a supervisor or refer to the manufacturer’s manual D) Ignore the load chart Answer: C Explanation: When in doubt, always consult the manufacturer’s guidance or a supervisor to ensure safety. Question 19. Which hand signal is used to indicate “emergency stop”? A) Arm extended horizontally, palm down, moving hand back and forth B) Both arms extended overhead, palms forward, swinging arms back and forth C) Arm raised with fist clenched D) Both arms crossed in front of chest Answer: D
IIination Exam
A) Any worker on site B) Only the designated signal person C) The project owner D) The crane manufacturer Answer: B Explanation: Only the designated signal person should communicate signals to the operator, except in emergencies. Question 22. What is the safest way to make a lift with an obstructed view? A) Proceed slowly B) Use a spotter or signal person C) Ignore the obstruction
IIination Exam
D) Increase speed to clear the area Answer: B Explanation: A signal person or spotter is required when the operator’s view is obstructed. Question 23. Before swinging the load, the operator should: A) Sound the horn B) Verify that the area is clear and all personnel are notified C) Ignore personnel location D) Lower the boom Answer: B Explanation: Ensuring the swing path is clear of personnel and obstacles helps prevent accidents.
IIination Exam
B) Wire rope sling C) Synthetic web sling D) Metal mesh sling Answer: C Explanation: Synthetic web slings are often more resistant to acids and chemicals than metal slings. Question 26. The Safe Working Load (SWL) of a sling is determined by: A) Its color B) Manufacturer’s specifications and rated capacity C) The operator’s guess D) The length of the load
IIination Exam
Answer: B Explanation: The SWL is set by the manufacturer and must never be exceeded. Question 27. What is the main function of a crane’s boom? A) To provide counterweight B) To support and move the load C) To supply hydraulic fluid D) To house the operator Answer: B Explanation: The boom is the primary lifting structure that supports and positions the load.
