Crane Operations & Safety Procedures 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 Operations & Safety Procedures flashcards as text
When performing a critical lift (load exceeding 75% of the crane's rated capacity), what is required before the lift begins?
Answer: A written critical lift plan approved by a qualified person
OSHA 1926.1433 requires a written critical lift plan reviewed and approved by a qualified person before any critical lift is performed.
What action should a crane operator take if they receive a stop signal from anyone on the job site?
Answer: Stop the load immediately regardless of who gave the signal
A stop signal must be obeyed immediately regardless of who gives it—this is a universal safety rule for crane operations.
What is the minimum safe distance a crane must maintain from an energized power line of 50 kV or less during operations?
Answer: 10 feet
OSHA 1926.1408 requires a minimum clearance of 10 feet from energized power lines rated 50 kV or below.
During a tandem lift (two cranes lifting one load), who is responsible for directing the overall operation?
Answer: A qualified lift director designated in the lift plan
OSHA requires a qualified lift director to be designated and in charge when two or more cranes are used to hoist a single load.
A crane's load chart shows a capacity of 20 tons at a 30-foot radius. If the boom angle is reduced, increasing the radius to 40 feet, what generally happens to the rated capacity?
Answer: The capacity decreases as radius increases
As the load radius increases (boom angle decreases), rated capacity decreases due to increased moment arm forces on the crane.
What must an operator do before moving a loaded crane on a job site?
Answer: Verify the travel path is clear, ground conditions are adequate, and load is properly secured
Before traveling with a load, the operator must confirm safe travel path, adequate ground bearing capacity, and that the load is properly secured.
When must a crane's annual inspection be performed?
Answer: Every 12 months by a qualified person
OSHA 1926.1412(f) requires annual inspections by a qualified person at intervals not exceeding 12 months.