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Massachusetts 2A Hoisting
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A 2A license allows the license holder to operate what? - answer excavators, backhoes and loaders, front-end loaders, compact hoisting machinery excluding classes 1, 3 & 4. Fine for operating without a license - answer $500-$3000 and or 3 months in jail What law governs hoisting equipment? - answer M.G.L. c. 146 section 53 What regulations govern hoisting equipment? - answer 520 CMR 6 What organization enforces 520 CMR 6 - answer Division of Professional Licensure, Office of Public Safety and Inspections. What regulations govern trenching? - answer 520 CMR 14 - Jackie's Law OSHA regulations - answer OSHA 1910 & 1926 ANSI - answer American National Standards Institute ASME - answer American Society of Mechanical Engineers Compact hoisting machinery - answer hoisting machinery under 10,000 lbs DOT - answer Department of Transportation
Emergency Procedure - answer Actions required to be taken when imminent danger may occur Property damage - answer Damage to property exceeding $ Minimum age to obtain a 2A license - answer 18 SAE - answer Society of Automotive Engineers Hand signal rules for excavators - answer SAE J1307 - 2002 Equipment that requires a license to operate - answer 10' vertical lift, 1/ yd bucket capacity, 500 lb lift capacity Continuing education credit hours are required for a 2A license - answer 4 hrs Inactive status - answer By request for 1 year for failure to obtain required credit hours. Cannot operate under license. Maintenance, repair, and refueling can be performed only when - answer When machine is inoperable and secure OSHA required daily logs must include inspection of - answer all parts subject to wear Inspection records must be kept - answer with the hoisting machinery at all times Prior to starting the machinery the operator must - answer make a complete walk-around (circle check), making sure the equipment is free of people and safe to operate.
Machinery is allowed to Straddle a trench - answer not at all Time that an operator must report an incident to the Department of Professional Licensure - answer 1 hr after the incident or when it was discovered After reporting an incident, the machinery shall - answer not be moved or dismantled unless required to protect life, property, removal of injured persons, bodies, or to permit the flow of emergency vehicles Written incident reports shall be submitted to the Department of Professional Licensure - answer within 48 hours A license suspension may be appealed within - answer one week Hand signal to raise load vertically - answer with either forearm vertical, forefinger pointing up, move hand in a small horizontal circle Hand signal to lower load vertically - answer with either arm extended downward, forefinger pointing down, move hand in small horizontal circles Hand signal to move load in horizontally - answer with either arm extended, hand raised and open toward direction of movement, move hand in direction of required movement Hand signal to move load out horizontally - answer with either arm extended, hand raised and open toward direction of movement, move hand in direction of required movement Hand signal to move arm outward - answer with both hands clenched point thumbs outward Hand signal to move arm inward - answer with both hands clenched point thumbs inward
Hand signal to raise boom - answer with either arm extended horizontally, fingers closed, point thumbs upward. Hand signal to lower boom - answer with either arm extended horizontally, fingers closed, point thumbs downward. Hand signal to close bucket - answer Hold one hand closed and stationary, rotate other hand in a small vertical circle with forefinger pointing horizontally at closed hand. Hand signal to open bucket - answer Hold one hand opened and stationary, rotate other hand in a small vertical circle with forefinger pointing horizontally at open hand. Hand signal to turn - answer Raise forearm with closed fist indicating inside of turn. Move other fist in vertical circle indicating direction of track or wheel rotation. Hand signal to counter rotate - answer place one hand on head indicating side or reverse track or wheel rotation. Move other hand in vertical circle indicating forward rotation of track or wheel. Hand signal to travel - answer Move fists in vertical circle around each other in the direction of track or wheel rotation Hand signal to swing - answer With arm extended horizontally, point with forefinger in the direction of swing rotation Hand signal to move slowly - answer Place one hand motionless in front of hand giving motion signal Hand signal to stop - answer With either arm extended laterally, hand open downward, move back and forth
"Sloping (Sloping system)" - answer excavations that are inclined away from the excavation so as to prevent cave-ins. "Stable rock" - answer natural solid mineral material that can be excavated with vertical sides and will remain intact while exposed. "Structural ramp" - answer a ramp built of steel or wood, usually used for vehicle access. "Support system" - answer a structure such as underpinning, bracing, or shoring, which provides support to an adjacent structure, underground installation, or the sides of an excavation. "Uprights" - answer the vertical members of a trench shoring system placed in contact with the earth and usually positioned so that individual members do not contact each other. "Wales" - answer horizontal members of a shoring system placed parallel to the excavation face whose sides bear against the vertical members of the shoring system or earth. Means of egress from a trench requirements - answer excavations 4' or more in depth shall have a stairway, ladder or ramp every 25 lateral feet. Employees exposed to public vehicular traffic - answer shall be provided and wear warning vests Warning system for mobile equipment when working near an excavation - answer shall consist of barricades, hand or mechanical signals, or stop logs. Atmospheres containing less than 19.5% oxygen must be tested - answer in excavations deeper than 4' in areas such as landfills where hazardous substances might be present.
Flammable gas limits for excavations - answer 20% of lower flammable limit of the gas Testing requirements for gas - answer If gas is smelt and as often as needed to be safe Inspection of shoring, bracing, and underpinning - answer performed by a competent person daily before work commences and as needed. Walkway spanning excavation requirements - answer must have guardrails when 6' or more above lower level of excavation Protection from cave-in requirement exceptions - answer stable rock or when less than 5' Actual slope - answer slope to which the excavation face is excavated Distress soil - answer cave-in is imminent or likely Evidence of distress - answer fissure development, subsidence, slumping from the face, bulging at the bottom, spalling from the face, raveling - small material falling from the face. Short-term exposure - answer period of less than 24 hours that an excavation is open OSHA trench depth requirement for shoring or sloping - answer >5' Angle of repose - answer 34 degrees or lowest angle where soil will not slide into excavation. Type 'A' maximum allowable slope - answer 3/4 - 1
Fencing requirements - answer 6' high, supported inside, no more than 4" gaps. Ladders must extend above trench - answer 3' Covering requirements - answer 3/4" thick steel plate Dig Safe Law - answer M.G.L. c. 82 s. 40-40D Dig Safe regulations - answer 220 CMR 99 Dig Safe contact info - answer 811 or website Violations reporting period - answer 30 days Dig Safe notification requirements - answer Minimum of 72 hours, not including weekends and holidays Period Dig Safe markings are good for - answer 30 days Emergency waiver - answer Notify Dig Safe as soon as possible after excavation. Dig Safe area marking requirements - answer within 15' of proposed excavation How close can you dig to a marked utility? - answer 18" Marking maintenance - answer Excavator is responsible for maintaing markings
Dig Safe violations - answer $1000 first offence, $5000-$10000 for subsequent offences in 12 calendar months. Dig Safe color code - Red - answer Electric Dig Safe color code - Yellow - answer Gas, oil, or steam Dig safe color code - Pink - answer Temporary survey markings Dig Safe color code - Orange - answer Telecommunications Dig Safe color code - Blue - answer Potable Water Dig Safe color code - Purple - answer Reclaimed water Dig Safe color code - Green - answer Sewer/drains Dig Safe color code - White - answer Pre-mark Markings remain valid unless - answer >30 days old; they become illegible; new facilities are installed; emergency condition is concluded. When excavation in close proximity to a facility or buried person - answer non-mechanical means must be employed. OSHA standard that governs rigging - answer 1926. Slinging materials - answer Chain, metal mesh, wire rope, synthetic
5000 lb load lifted with two slings at a 30 degree angle will have how much stress on the rigging? - answer 10,000 lbs, 5000 lbs per sling As the sling angle decreases rigging stress increases? T or F - answer True Rigging standard - answer ANSI B 30. Safety factor for rigging - answer 5: Normal strength is the same thing as - answer breaking strength Working load limit is the same thing as - answer safe working load Wire rope clips are what % efficient - answer 80 Choker capacity is always - answer 75% of vertical Unit weight x Volume = - answer Total volume Angle at which sling capacity = vertical capacity - answer 30 Below what angle must choker capacity be reduced - answer 135 Limit for strand breakage in a wire rope - answer 10 random or 5 in one string Working load limit = - answer ultimate load divided by the design factor Wear limit for eye or saddle of a hook - answer 5%
Rated shackles used at 90 degrees can be used to what capacity - answer 50% Thimbles prevent what - answer The eye from collapsing Hydraulic fluid leaking from one side of a cylinder to another - answer bypass Does the controls in a neutral position act like a break? - answer Yes Does a gear pump provide the most efficient use of engine power? - answer No Does hydraulic fluid expand or contract when heated? - answer expand Minimum number of positions that must be shown on a load chart - answer 4 Renewal period for a hoisting license - answer 2 years When digging across a slope the pile should be place where? - answer Up slope When is protection in a trench required - answer 5' Distance requirement for spoil piles from trench - answer 2' What should be done when backfilling - answer Fill in lifts, compacting each with front tires Governs pressure in a hydraulic system - answer relief valve
All loaders respond the same way to control inputs. T or F - answer False, they respond "in their own ways" Control response can vary because of what factors - answer Manufacturers, age of the machine, weight distribution of the machine What is the number one cause of accidents with loaders? - answer Getting on and off the machine When must you wear a seat-belt? - answer All of the time When loading on a trailer the ground must be - answer firm and level When should the loader arm lock be installed - answer when performing maintenance when the loader arm is raised When using a machine with the ROPS (Roll Over Protective Structure) a seat-belt is not needed? - answer False The risk of a rollover can be reduced by - answer monitoring the weight distribution as you work Best schedule for greasing machines - answer light and frequently Factors that contribute to unusual wear of a loader - answer Unnecessary stresses, failing to grease, dirt entering mechanical joints Factors that cause hydraulic hoses to wear - answer Weathering of the rubber, hitting or rubbing against objects What components require daily fluid level checks - answer Engine oil, transmission, hydraulic system
Secondary air filters can be blown out with compressed air? T or F - answer False, they should be replaced Daily maintenance includes - answer Greasing, checking fluid levels, pre- operation check In order to avoid digging the machine into an unmaneuverable situation the operator should - answer Plan the digging sequence For best results when back dragging the bucket should be in what position
- answer float When finish grading the operator should - answer Back-drag in one direction, change angles 60 - 90 degrees and back-drag again As a general rule the extendable dipstick should be positioned where - answer the shortest possible position to do the job When maneuvering with a full bucket the most basic rule is to - answer keep the bucket low When using efficient truck loading patters, the loader should - answer Approach the pile and truck squarely, utilize a 'V' shape turn pattern The most powerful breakout force is when the backhoe uses the "prying method". T of F - answer True What fire extinguisher is required - answer 5lb BC Do machines need back-up alarms? - answer Yes Machines running inside - answer If properly ventilated and monitored
