OSHA 500 Co nstruction Trainer Questions with Correct Answers
- major types of rigging hazards - Correct Answer falls
- causes of crane accidents - Correct Answer instability
struck by electric materials handling aparatus in rigging (3) - Correct Answer wire ropes chains synthetic (web) slings inspections (how often and by whom) - Correct Answer prior to each use by a competent person rigging restrictions for wire rope - Correct Answer less than 10% broken wires in 8 diameter requirements for special custom-designed accessories in relation to safe working loads for rigging (2) - Correct Answer proof test of 125% safe load marked
no communication no training inadequate maintenance/ inspections when and by whom must crane inspections be performed
(5) - Correct Answer modified: qualified person
post-assembly: qualified person
Annual: qualified
shift: competent
monthly: competent 1 / 3
If the ability to transmit signals between crane operator and signal person is interrupted what happens - Correct Answer work is stopped until signal resumes How are workers prevented from entering and area where they may be struck/crushed by a crane's rotating superstructure? (4) - Correct Answer training maintain barriers/control lines signage mark equipment
minimum clearance for power lines - Correct Answer <50 kV: 10 '
50kV - 200 kV : 15'
200 kV - 350 kV: 20'
350 kV - 500 Kv : 25'
unknown: 20 kV
Who needs proper certifications, qualifications, training when working around cranes (4) - Correct Answer 1. signal spotter
- crane operator
- rigger
- maintenance/repair
- motor vehicle, mechanized equipment, marine operations hazards - Correct Answer
unexpected/confusing situations obstructions diverted attention exposed workers improper temporary traffic control set-up frequent PIT accidents (7) - Correct Answer tip over 2 / 3
struck by PIT struck by falling load falling off truck driving off loading dock improper maintenance driver losing control tractor roll-over causes (5) - Correct Answer hill that is too steep bucket elevated too high for load driven too close to edge of road/ditch/steep slope stuck in mud/snow rear wheels cannot turn---chains, boards,to improve traction restricted rear view requirements (2) - Correct Answer audible reverse signal alarm observer to signal that its safe to back up parking precautions for PITs (3) - Correct Answer parking break set wheels chocked location of equipment when parked at night next to highway certified forklift operator training requirements (3) - Correct Answer (training conducted by knowledgable trained experienced person)
- formal instruction (classroom)
- practical
- evaluation of performance (every 3 yrs)
- / 3
Chemicals enter the body (4) - Correct Answer inhalation injection ingestion