Crane Safety and Pre-Operation Inspection Flashcards
7 cards from real NCCCO practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Crane Safety and Pre-Operation Inspection flashcards as text
What is the purpose of checking the crane's level bubble (spirit level) during setup?
Answer: To confirm the crane is plumb within manufacturer tolerances for safe operation
The level bubble ensures the crane is within the manufacturer's specified leveling tolerance, which is critical for accurate load chart ratings and stability.
A crane's load moment indicator (LMI) alarm activates during a pick. What should the operator do first?
Answer: Stop the lift and do not continue until the cause is identified
An LMI alarm signals an approaching or exceeded capacity limit; the operator must stop the lift immediately to assess the situation before taking any corrective action.
Which inspection item is specifically associated with checking for two-blocking hazards before a lift?
Answer: Anti-two-block device functionality and warning systems
Anti-two-block devices must be tested before operations to ensure they will stop hoist motion before the hook block contacts the boom tip and causes rope or structural failure.
When must a frequent (daily) inspection of a crane be performed?
Answer: Each day or shift the crane is used, before beginning operations
OCASE standards and OSHA 1926.1412 require a frequent inspection each day or shift before the crane is placed in service.
What does a crane operator check when inspecting wire rope for 'valley breaks'?
Answer: Broken wires located between strands in the valley of the rope
Valley breaks are wire failures that occur between strands, often harder to see than surface breaks, and are particularly dangerous because they indicate internal rope fatigue.
Before entering a crane cab, what environmental hazard should an operator assess that could affect safe operation?
Answer: Proximity to energized power lines relative to the crane's maximum reach
Overhead power line proximity is one of the leading causes of crane-related fatalities; the operator must identify and establish safe clearance distances before any operation.
If a crane has been idle for more than one month but less than six months, what type of inspection is required before returning it to service?
Answer: A documented inspection by a qualified person following the manufacturer's criteria
OSHA 1926.1412(e)(1) requires that cranes idle for more than one month receive an inspection by a qualified person using manufacturer criteria before returning to service.