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50 Cards in this Set
- Front
- Back
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When making a multiple crane lift it is important for the operator to understand that:
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The weight may increase if the other crane lands the load
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If a crane is not set-up level and the operator swings a load from the high side to the low side, the load radius will:
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Increase
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Most crane manufacturers reduce load capacity for duty-cycle operations because:
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Side loading forces may occur
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On who’s recommendations should a preventative maintenance program be set-up:
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Crane manufacturer ANSI 5-2.3 (a)
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What is the standard rope used on most cranes?
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right regular lay
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The proper way to calibrate a boom angle indicator is:
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Using a level, raise the boom to horizontal and set the indicator a 00
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The red area of an instrument gauge means:
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a dangerous condition exists
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The best way to keep people from being injured from the counterweight of the crane is to:
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Fence or barricade the swing area of the crane OSHA and ANSI
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Only approved attachments or extra counterweights made by the manufacturer should be placed on the rear of crane because:
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they could cause a backward stability problem
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What is the first thing an operator should do before going under a low pipe rack?
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Post a signalperson to check clearance
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When working on outriggers, the only time they should be less than fully extended is when:
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there is a load chart for this operation
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When lifting loads from the water, the operator should be aware that:
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the load will increase when you pick the load from the water
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What is required to be on a Hydraulic Crane in order for it to lift a manbasket?
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Boom length indicator
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When working on rubber, cranes are rated at what percentage of tipping?
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75%
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When using cable or nylon spreaders it is important to remember:
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The lower the spreader angle the greater the tension
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Backward stability of a crane is tested with:
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Basic boom at maximum angle with no load
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If not listed in the load\capacity charts for a hydraulic crane and you are in between boom lengths, you should:
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use the next longer length
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When a spinning load presents a danger, the operator should:
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Use a tagline
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The jib capacity is 8 tons and the ball weighs 900 lbs. What is the heaviest load that can be lifted safely?
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15,100 LBS
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Parts of line means:
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the number of lines running thru the load block
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If a jib is erected but not being used, it is treated as a deduction from the cranes:
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Gross capacity
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What is the maximum number of broken wires acceptable before replacement on a standing wire rope?
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2 OSHA & ANSI
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What are most jib’s capacities based on?
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Structural
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On the majority of conventional cranes the power is transferred to the torque converter by a:
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Master Clutch
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During disassembly of a long boom, the hog lines are connected at the maximum cantilever point and the boom is slightly lifted off the ground. Which pins are to be removed next?
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The bottom pins ahead of the cantilever point (IPT Manual)
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When using load\capacity charts, what does the term “jib angle to ground” refer to?
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Main boom angle minus the jibs offset
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A truck crane, with outriggers properly set, is rated at what percentage of its tipping capacity?
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85% ANSI 5-1.1.1
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On a truck crane with the outriggers extended and set, and tires touching the ground, the operator should refer to what load chart?
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on rubber chart
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When testing a manbasket how long must the test pick be maintained?
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5 minutes
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What is the minimum pitch diameter for load hoisting sheaves?
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not less than 18 times rope diameter (ANSI) 5-1.7.5(b)
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What is the minimum pitch diameter for boom hoisting sheaves?
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not less than 15 times rope diameter (ANSI) 5-1.7.5(a)
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What is the minimum pitch diameter for load block sheaves
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not less than 16 times rope diameter (ANSI) 5-1.7.5(c)
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Seat belts shall be provided on what cranes?
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Cherry Pickers (ANSI) 5-1.8(e)
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Power is transferred to the swings through a:
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Pinion gear
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LMIs shall be installed on cranes with a lifting capacities of:
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LMIs shall be installed on cranes with a lifting capacities of:
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When lifting personnel the cranes hook must be the type that:
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Can be closed and locked (OSHA)1926 (g)(4)(iv)(B)
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When working over water with a manbasket are the people inside required to wear a belt/harness?
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no
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What is the maximum advisable wind speed for crane operation?
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30 mph Mobile Crane Manual Pg. 173
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When working near powerlines, where should caution stickers be installed?
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At operator’s station and on the outside of the crane. (ANSI) 5-3.4.5.3(i)
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Jib back lash, how much is allowed?
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5 degrees OSHA
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Cranes must be level to within ____% grade
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1% OSHA
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A frequent inspection is
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Daily to monthly (OSHA) 1910.180 (d)(2)(i)
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A periodic inspection is:
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Monthly to annually (OSHA) 1910.180 (d)(2)(ii)
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Test loads shall not exceed _______ of manufacturers load ratings
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110% (ANSI) 5-2.2.2(1)
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Cranes idle for more than 6 months must have_________________ inspections performed.
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Frequent and Periodic (ANSI) 5-2.1.4(b)
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Cranes idle for less than 6 months, must have what type inspection performed.
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Frequent
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Cranes lifting personnel platforms must have an inspection performed every:
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Day (OSHA)
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Crane hooks must not be twisted in excess of:
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10 degrees (OSHA) 1910.180 (d)(3)(v)
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A Crane hooks throat opening must not exceed:
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15% of its original size (OSHA) 1910.180 (d)(3)(v)
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What is the Jib Offset?
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Jib angle to the boom
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