MA 1A Hoisting License Exam Questions and Answers||A+ Solution guide (Verified)

MA 1A Hoisting License Exam Questions and Answers||A+ Solution guide (Verified) A crane must always have at least ____ of a tank of fuel or it is considered a deficiency by OSHA - Answer- 50% Most common type of cause of accident - Answer- Hit by falling object - 43% Metal fatigue - Answer- A crane overloaded will lift successfully right up until the day it fails with only a fraction of its true capacity An underqualified or incompetent rigger can cause accidents due to the following : - Answer- -Improper Calculations -Poorly maintained rigging equipment -Bad technique An underqualified signal person can cause accidents due to the following : - Answer- -Non standard or wrong signals -Not following laws and company procedures -Not checking radios or proper function -Dereliction of duties Do not keep hook attached to load while travelling with load on deck of a _________ _________ _________ - Answer- Carry deck crane Do cranes need a fire extinguisher in the cab ? - Answer- Yes a 10 B-C RT Cranes (Rough Terrain) - Answer- are only rated for pick and carry operations have been known to tip over backwards with no load Outrigger floats must be secured to ______ - Answer- pads A durable legible _______ _______ must be secured to the crane - Answer- load chart Unless approved by the manufacturer ____________ ______________ _____________ ___________ are not supposed to lift over the front - Answer- Carrier mounted telescopic cranes A crane that performs drag line, clam shell, drop ball magnet, container handling, concrete bucket, and marine operations - Answer- does not require anti two block warning (unless pile driving or hoisting people) Crawler cranes - Answer- can be center mounted or offset mounted Never assemble a crane ______________ ____________ _______________ - Answer- under power lines Assembly / Disassembly Specific Hazards - Answer- -Ground Conditions -Blocking -Location of Blocking -Verify assist crane loads -Boom and Jib pick points -Center of Gravity -Stability upon pin removal -Snagging -Struck by counterweights -Boom hoist brake failure -Loss of backward stability -Wind speed or weather -Cantilevered boom sections cant exceed rating for sections Initial Inspection - Answer- Performed after manufacture Frequent Inspection - Answer- Performed each shift or monthly Periodic Inspection - Answer- Performed once within a 12 month period depending on use severity post assembly Inspection - Answer- After assembling a crawler crane Wire Rope Inspection - Answer- Inspected before or during each shift, month and annually Who created the Hand Signals for cranes used in Massachusetts? - Answer- ANSI and ASME OSHA states a crane that has a repair of a load bearing item other than wire rope should be _________ __________ - Answer- load tested Load tests must be conducted with ______ of the cranes capacity - Answer- 110% When load testing, _______________________________ - Answer- Keep load close to ground in case of failure. Do not test cranes with deficient load bearing components. Any item in an inspection found to be deficient and constitutes a safety hazard - Answer- Must be repaired prior to operation Frequent Inspection items to check - Answer- -Control mechanisms -Control drive mechanisms -Air and hydraulic systems for leaks -Hydraulic fluid levels -Hooks, latches -Wire rope reeving -Wire rope -Electric apparatus -Tires -Ground conditions -Level each lift, move, and set up -Operator cab windows -Rails, rail clamps, rail stops Crane documents - Answer- must be present at time of inspection for the inspector, or they are considered to be nonexistent Safety Devices on Crane that must be functioning prior to use - Answer- -Outrigger check valves -Horn -Rail clamps -Boom stops -Foot pedal brake locks -Jib stops -Crane level indicator Category 1 Operator Aids - Answer- - Boom hoist limiting device - Luffing jib limiting device - Anti two block device Category 1 Operator Aids Timeframes - Answer- - Parts must be ordered within 7 Days - Repairs must be made within 7 Days Category 2 Operator Aids - Answer- - Boom angle or radius indicator - Jib angle indicator - Load weighing or similar device - Outrigger / stabilizer sensor - Hoist drum rotation indicator Category 2 Operator Aids Timeframes - Answer- - Parts must be ordered within 7 Days - Repairs must be made within 30 Days During a wire rope inspection, booming down ____________________ - Answer- is not required OSHA requires a minimum of ____________ to remain on the drum when a load is at its lowest point - Answer- two rope wraps A rope with reduction in nominal rope diameter of ____ must be removed from service - Answer- 5% Rope Lay - Answer- The distance it takes for a strand to make one complete revolution around the rope Rotation resistant rope - Answer- is created by having core strands lay one way outer strands lay the alternate way Rotation resistant ropes should not - Answer- be used for boom hoist reeving A rope impregnated sheave will _________________ - Answer- damage a new replacement rope quickly Crane Stability Rating - Crawler - Answer- 75% Crane Stability Rating - Carrier Mounted - Answer- 85% Crane Stability Rating - On Rubber - Answer- 75% Crane Stability Rating - Boom Trucks - Answer- 85% Prohibited Zone - Answer- Based upon the voltage. The area with high voltage that may be breached by any function of the crane, load line, or load. Guard area and use non conductive synthetic slings. Load chart is accurate when a crane is set up within ____ of level - Answer- 1% When using cribbing, the cribbing must be at least - Answer- 3 times the size of outrigger pad Moment of balance - Answer- When the leverage of the crane is equal to the leverage of the load. Extending the boom, booming down or dynamic forces can cause crane tipping. Only lift people with a crane if - Answer- No other safer way is available Competent person - Answer- Person capable of identifying existing predictable hazards and has the authorization and ability to correct and eliminate them