NCCCO Emergency Procedures & Accident Prevention 5

Question 1

A worker on the ground is directing a blind lift via radio. The signal is lost mid-lift. What should the operator do?

Accepted Answer

Stop all crane movement and hold position until communication is restored

Answer

Continue the lift using best judgment and complete the move

Answer

Lower the load slowly until it is visible from the cab

Answer

Switch to hand signals with a different spotter

Question 2

When conducting a post-accident investigation involving a crane, which action should be taken FIRST?

Accepted Answer

Secure the accident scene and preserve evidence for investigation

Answer

Restart the crane to verify it is still operational

Answer

Repair any visible damage before OSHA arrives

Answer

Move the crane to a safe area to allow normal operations to resume

Question 3

What is the minimum distance a crane must maintain from an energized power line rated at 50–200 kV, when no electrical utility owner authorization is in place?

Accepted Answer

20 feet

Answer

5 feet

Answer

10 feet

Answer

35 feet

Question 4

An operator observes that the crane's load moment indicator (LMI) is reading differently than the load chart for the current configuration. The operator should:

Accepted Answer

Stop the lift and have the LMI inspected before continuing

Answer

Trust the LMI and continue the lift

Answer

Disregard the LMI and rely solely on the load chart

Answer

Average the two values to determine a safe working load

Question 5

During a lift, a rigger signals an emergency stop. After stopping, the operator notices smoke coming from the hoist motor. What is the correct next step?

Accepted Answer

Shut down the crane and use an alternative means to safely lower the load

Answer

Re-energize the hoist to lower the load before it damages the motor

Answer

Spray water on the motor to cool it while the load remains suspended

Answer

Continue holding the load until the smoke clears, then resume

Question 6

Which scenario represents a near-miss that MUST be reported per best practices and many site safety programs?

Accepted Answer

A load that swung unexpectedly but stopped before striking a worker

Answer

A rigging sling that was slightly over-rated for the load used

Answer

An operator who arrived five minutes late to pre-shift inspection

Answer

A tag line that became tangled and was freed without incident

Question 7

If a crane operator becomes aware that personnel are inside the swing radius of the crane during an active lift, the operator should:

Accepted Answer

Immediately stop all crane movement and wait until the area is clear

Answer

Sound the horn once and continue the lift carefully

Answer

Slow the swing speed to a minimum and complete the pick

Answer

Ask the signal person to wave them out while continuing the lift