Crane Operations & Safety Procedures Flashcards
6 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 6 Crane Operations & Safety Procedures flashcards as text
What action should an operator take if they lose sight of the load during a lift?
Answer: Stop all crane movement immediately until visual contact or signal person communication is re-established
If the operator loses sight of the load, all crane movement must stop immediately. Operations resume only when visual contact is restored or a qualified signal person provides guidance.
What is the significance of the 'rated capacity' on a crane's load chart?
Answer: The maximum load the crane can safely lift at a specific radius and configuration, including the weight of rigging
Rated capacity is the maximum load (including rigging weight, hook block, etc.) that can be safely lifted at a given radius and boom configuration. Exceeding it risks tipping or structural failure.
What should an operator do before traveling with a crane on a job site?
Answer: Ensure the travel path is clear, level, and can support the crane's weight
Before traveling, verify the path is clear of personnel and obstacles, the ground can support the crane weight, the boom is in travel position, and the hook is secured.
How does boom length affect a crane's lifting capacity?
Answer: Longer boom decreases capacity at a given radius
Longer booms increase the structural load on the crane and create greater tipping moment. At any given radius, capacity is lower with a longer boom configuration.
What is the purpose of outriggers on a mobile crane?
Answer: To increase stability by widening the crane's support base and leveling the crane
Outriggers extend the crane's footprint and transfer loads to the ground, greatly increasing stability. They must be fully extended on firm ground with adequate pad support for rated capacity lifts.
An operator notices the crane is making unusual sounds during a lift. What should they do?
Answer: Stop the lift, set the load down safely, and investigate the cause before continuing
Unusual sounds can indicate mechanical failure, structural stress, or component damage. Stop operations immediately, safely lower the load, and don't resume until the cause is identified and resolved.