2a license – Flashcards
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Stop
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One light
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Raise
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Two lights
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Lower
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Three lights
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Lower slowly
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Four lights
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Highest excavator license
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2a
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Lowest hoisting license, forklifts and lulls
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1c
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Hoisting excavating air and electrical specialty
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Four classes of license
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Average hydraulic pressure in hoisting equipment
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2000-3000 pounds
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Licenses expire every two years
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2 years
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With excavating machinery
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S.A.E hand signals will be used
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Code of Massachusetts Regulations
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520 CMR 6.00
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Massachusetts General Laws
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Chapter 146
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Purpose , scope , and Exceptions
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6.01
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Is applicable to all hoisting machinery used on private or public property
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520 CMR 6.00
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Definitions Death, injury records license classification , welding and cutting
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6.02
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License prerequisites, requirements
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6.03
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Operating Procedures
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6.04
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General Requirements
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6.05
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Classification and Qualifications
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6.06
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Hand signal. Niosh signals for crane operatio n
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6.07
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Application Procedure
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6.09
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Special Requirements for All Operators of Hoisting Machinery
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6:10
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License Suspension and Revocation
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6:11
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Governs welding and cutting on hoisting machinery
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ASME 1998 section lX
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Jackie, s Law
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520 CMR 14.00
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Slope angle for type A soil
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34 degrees
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Slope for type b soil
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45 degrees
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Slope for type c soil
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53 degrees
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Max distance between ladders in a trench
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25 inches
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Below 20 inches all trench protection must be engineered
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20 inches
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Trench protection is needed at or below this depth sloping
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5 inches
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Ladder egress from trenches at or below 4 inches
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4 inches
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Jackie's law depth at which a permit must be pulled
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3 inches
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In one cubuc yard
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27 cu/ ft
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When pulling a piece of equipment do not exceed this speed
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5 mph
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Do not dig closer than 18 inches to a known utility
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18 inches
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Osha standard covering rigging
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1926.251-
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Dig safe notice
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72 hours
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Exemption for short term rental non commercial use
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14 days
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Chapter covering hoisting in ma
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Mgl c.146 , 53-53AE
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Commonwealth of mass regulation
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CMR
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Code of federal regulation
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CFR
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American national standart institute
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ANSI
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Electric
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Red
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Tell data
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Orange
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Sewer
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Green
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Gas oil and steam
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Yellow
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Water
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Blue
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Non portable water
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Purple
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Temporary survey marking
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Pink
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Proposed excavation location
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White
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National institute for occupational safety and health
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NIOSH
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Acceptable o2 rangein a trench
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19-23.5%
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A mount of water allowed in a trench
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Zero
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If a crane is out of level 1% you can lose up to 50% of capacity
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1%
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Pounds weight of one cubic yard of soil
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3300 pounds
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Weight of one cubic foot of cubic foot of soil
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125 pounds
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Temporary survey marking
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Pink
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Proposed excavation location
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White
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National institute for occupational safety and health
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NIOSH
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Acceptable o2 rangein a trench
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19-23.5%
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A mount of water allowed in a trench
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Zero
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If a crane is out of level 1% you can lose up to 50% of capacity
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1%
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Pounds weight of one cubic yard of soil
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3300 pounds
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Heat spark and combustion
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How does fuel in a gas engine ignite?
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4 inches ×3.14=1800 pounds =22608 of force
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What is the total force exerted 4 inches cilinder at 1800 psi?
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OSHA 1926.251
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What OSHA rules govern rigging equipment
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Controls the RPM
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What does a governor do on an engine
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34 degrees
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What is the angle of the angle of repose
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Pressure relief valve
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What is the hydraulic over pressure maintained by
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Height of the machine the trailer and the bridges you must go under
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What do you check when trailering a machine
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Soft soil wet areas power lones. Dig safe marks wells. Lights read the street
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What do you look for before digging
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It stops the loop from crushing
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What is the purposeof a thimble in rigging
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3 points of contact
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What is the proper way to exit a machine
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The load chart the pressure relief valve and the manufacturers' specification
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What restricts the machine lifting capacity
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Falls off the equipment
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What is the most common way an operator is injured
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The greatest angle above horizontal at which material will not fall back into the trench
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What is the angle of repose
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Up and down the hill not across the slope
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How is it best to work on a slope
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Forged steel
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What should hooks and shakles be made of
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Shipping papers calculate. Or manufacture information
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How do you know the weight of the load
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To rotate the housing on a crane or excavator
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What does a swing gear do
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Roll over protection system includes seatbelt and roll over cage
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ROPS means what
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Max and min loadsthat can be lifted and two intermediate readings
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What must be stamped on capacity schedules
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An over revving engine
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What is a runaway engine
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Shut it off.bury the bucket smother it.and pull the kill switch
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How do you stop a runaway engine
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50% of mfg specification
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What is the useful life of a chain sling
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The weight of the lift and .all rigging
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What is included in the gross weightof a lift
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It allows you to disconnectthe tranny power without putting in the trench used off road only
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What is the clutch disconnect
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It shuts down all electrical function to a machine
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What is the master disconnect switch
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Is the unit on which all other components are mounted or attached
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The main frame
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Foot pedals should be used for most travel operations Hand levers used " inch" or "Creep" the machine into tight areas
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Excavators Track control levers and pedals
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Function Direction of movement
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Controls must be identified with
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Directs hydraulic oil to the track motors to allow the tracks to function independently while the mainframe is in any position
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Rotary manifold
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The mainframe rotates 360 degrees on the "carbody" using the hydraulic swing motor
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Swing Motor
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The swing gear attaches to the mainframe to the "car body" allowing it to rotate independently of the undercarriage
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Swing Gear
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The two track frames on either side of the carbody are made of carrier rollers which carry the rails and grouser pads Bottom rollers that carry the weight of the machine and keep the rails straight
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Track Frames
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The idlers carry the rails and cushions the machine from shock when digging and traveling
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Front Idler (A)
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The track motors propel the forward and reverse movements of the machine with the controls found in the operators compartmen
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Track motors (B)
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The rails are the series of links , pins and bushing onto which are bolted the grouser pads wider pads - less ground pressure Narrow pads with high grousers- high traction
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Track Rails
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Tbe boom is attached to ears on the mainframe The boom provides the main lifting power of the machine
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Boom
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The crowd is pinned to the top of the boom The crowd is sometimes referred to as the. Dipper. Stick
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Crowd
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The last section of the boom assembly is generally the bucket or the tool
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Tool
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45 degrees and 65 degrees
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Two intermediate posution are
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While the master clutch is engaged
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The operator of the machine shall not leave the machine
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O.S.H.A.publication 29C.F.R 1926.21 B .2
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Swing Radius protection Refer to
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$ 500 and not more than $ 3000, or by imprisonment for not more than 3 months or both such fine and imprisonment
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Whoever violates any provision of sectio 53,53a or 54, or any rule or regulation made thereunder, shall be punished by a fine of not less than
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$250 and not more than 3000, or by imprisonment for not more than 3 months or both such fine and imprisonment
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Whoever prevents or attempts to prevent any inspector from entering on any premises in the discharge of his duty shall be punished by a fine of not less than
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10 feet
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Minimum distance from overhead lines up to 50,000 volts is
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25 feet
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No smoking or open flames within
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5 pounds .b - c class
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Fire extinguisher must be at all locations minimum
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Professional service industry
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PSI
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2 feet from excavation
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Pile must be a minimumof
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Shallow
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Angle of repose should be
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A 90 degree angle
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Work bank or stock pile at
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Release the brakes and accelerate
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To correct a rear wheel (drive wheel) braking skid you shuold
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Control the load surge
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The purpose of a baffle is to
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One within 10 feet of the rear of the vehicle one about 100 feet to the rear and one about 100 feet from the front of the vehicle
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You must park on the side of a level straight two lane road where you place the three reflective triangles
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One withing 10 feet ofbthe rear of the vehicle one about 100 feet to the rear and one about 200 feet to the rear
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You must park on the side level straight four lane divided highway where should you place the three reflective triangles
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Can be caused by the brakes becoming too hot
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Brake fade
