Nccco Core Exam Questions With All Answers

Nccco Core Exam Questions With All Answers If taking sides strain on a boom what concerns the operator the most - ANSWER- Boom damage If a crane load chart has capacities listed in the shaded area this means that - ANSWER- If overloaded structural confidence will be compromised As the layers of rope on a drum increase the allowable line Pull wil - ANSWERDecrease Of the following actions which one will most likely cause a side load condition - ANSWER- Abruptly starting or stopping the swing Cording to OSHA with any hook ball or attachment at its lowest point a minimum of blank reps must remain on the drum at all times - ANSWER- 2 What is the minimum distance of crane must maintain from powerlines rated below 50 KV - ANSWER- 10 feet What is the best procedures to follow if underground utilities are present - ANSWERContact utility company For boom is reeves eccentrically to the block the most common result would be - ANSWER- Twisting of the boom What is the safety factor for 6 x 19 IWRC wire rope - ANSWER- 3.5-1 What is the safety factor for rotation resistor wire rope - ANSWER- 5-1 What is the safety factor for rigging hardware - ANSWER- 5-1 What is the safety factor one hoisting personnel using IWRC wire Rope - ANSWER- 7-1 What is the safety factor hoisting personnel using rotation resistance wire rope - ANSWER- 10-1 Unless the manufacturer states otherwise the wind speed to seize hoisting Shall be - ANSWER- 30 mph When hoisting personnel OSHA requires wind speed not to exceed - ANSWER- 20 mph Who has the responsibility of determining the correct weight of the load - ANSWERSupervisor When an operator leave there a crane they must - ANSWER- Land load engage all locks and Pawls and lock machine When is it safe to work closer than alarm for distance from any powerline - ANSWERWhen the utility company certifies that the lines are D energized When operating a crawler crane what is the most unstable allowable quadrant of operation - ANSWER- Side What is not a good location for crane set up - ANSWER- Above utilities If an operator arrives at a job site and the crane is already set up how would he checked the main an auxiliary breaks - ANSWER- Left the load a few inches off the ground and test the brakes