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- / ) Questions and
Correct Answers Grade
A 1 / 4
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 - Answer- Decrease 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 below 50 KV - Answer- 10 feet What is the best procedures to follow if underground utilities are present - Answer- Contact utility company 2 / 4
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 - 3 / 4
Answer- 20 mph Who has the responsibility of determining the correct weight of the load - Answer- Supervisor
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