CORRECT DETAILED ANSWERS WITH

NCCCO TSS (Telescopic Boom Crane – Fixed Cab) Manitex Exam QUESTIONS AND

CORRECT DETAILED ANSWERS WITH

RATIONALES (VERIFIED ANSWERS)

Section 1: Operational Safety

• What is the primary purpose of using outriggers on a Manitex telescopic

boom crane?

• To increase lifting speed
• To stabilize the crane during lifting operations
• To increase boom extension
• To reduce fuel consumption

Answer: B. To stabilize the crane during lifting operations

Rationale: Outriggers are deployed to provide stability and prevent tipping

during lifting. They distribute the crane's load more evenly over a wider base.

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• What should an operator do before starting any crane operation?
• Check the load chart and weather conditions
• Warm up the crane for 30 minutes
• Immediately start lifting without delay
• Only check fuel levels

Answer: A. Check the load chart and weather conditions

Rationale: Reviewing load charts ensures the lift is within capacity, and weather can greatly affect crane stability, especially wind speed.

Section 2: Load Charts and Calculations

• When using a Manitex crane with outriggers fully extended, the operator

should refer to which load chart?

• On-rubber chart
• On-crawler chart
• Full outriggers chart
• Pick and carry chart

Answer: C. Full outriggers chart

Rationale: Load charts are based on crane configuration; for fully extended

outriggers, the full outriggers chart provides accurate lifting capacities.

• If the crane is set up on a slope, what happens to the load capacity?
• It increases
• It remains unchanged 2 / 4

• It must be recalculated
• It automatically adjusts

Answer: C. It must be recalculated

Rationale: Load capacities assume a level surface. Any incline or slope affects

center of gravity and stability, requiring a reassessment of lifting limits.

Section 3: Setup and Configuration

• How should the crane be set up when lifting near power lines?
• Set up as close to the power lines as possible for better reach
• Maintain OSHA minimum approach distances
• Use the boom to push the lines out of the way
• Operate as usual if the lines are insulated

Answer: B. Maintain OSHA minimum approach distances

Rationale: OSHA mandates a safe distance to prevent electrocution risks. This

distance increases with voltage levels.

• What is the first step when setting up a Manitex crane on soft ground?
• Add additional counterweights
• Lay steel mats or cribbing under outriggers
• Extend the boom fully to test the ground
• Begin lifting light loads first 3 / 4

Answer: B. Lay steel mats or cribbing under outriggers

Rationale: This distributes the crane’s weight and prevents outrigger sinkage, ensuring stability during lifting.

Section 4: Signals and Communication

• Who is responsible for ensuring communication between the operator and

signal person is clear and understood?

• The site supervisor
• The signal person only
• The crane operator
• Both operator and signal person

Answer: D. Both operator and signal person

Rationale: Effective and clear communication is a shared responsibility to

ensure safety and prevent accidents.

• What is the signal for “emergency stop”?
• Two hands waving side to side
• Arm extended with palm down
• Both arms extended horizontally with palms down
• One hand held up with palm outstretched

Answer: D. One hand held up with palm outstretched

Rationale: This is the universally recognized signal for emergency stop,

indicating the operator must halt all operations immediately.

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