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47 Cards in this Set
- Front
- Back
At what time interval or under what circumstances should you inspect hooks visually? |
At the beginning of each workday and before lifting a full-rated load. |
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Safety in the conduct of rigging operations depends primarily on what factor?
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Care and common sense of personnel assigned.
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Wire rope with what number of (a) strands and (b) wires in each strand is the most flexible?
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(a) 6 (b) 37
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The inspection of wire rope clips at regular intervals should also include what other task?
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Removing the clips and examining the wire rope.
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Of the following areas, which one should be used for storing a line?
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A dry, unheated building that is well ventilated.
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Synthetic-fiber lines are used in the Navy for which of the following reasons?
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-They are easy to handle. |
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Shackles should replace hooks during what lifting operation?
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When the loads are too heavy for the hooks to handle.
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What is the SWL of a new 2-inch diameter No.1 Manila line?
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7,750 lbs
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What is the most important operational check (inspection) made on hoisting and rigging equipment?
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Line and rigging
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Unlyaing of nonpreformed wire rope is rapid and could cause serious injury.
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True
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What should be done with a hook that has been bent by overloading?
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Cut it in half and discard it.
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The term "whipping" refers to what factor when applied to a line?
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It prevents strands from unraveling.
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What is the purpose of a wire rope thimble in an eye splice?
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It reduces abrasive wear on the wire rope.
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The tension at which the line will part when a load is applied.
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Breaking Strength.
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An endlees sling is frequently used as a choker hitch.
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True
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What advantage does fiber-line slings have over wire-rope or chain slings?
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They are more flexible and offer protection to finished materials.
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The ration between the breaking strength and the safe working load.
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Safety Factor
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The strength of rigging lines depends on what factor(s)?
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The size, fiber used, and the type of stranding.
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What precaution should you take before storing a fiber line?
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Ensure the line is dry. |
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A single-leg sling is also known as a?
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Strap
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The load that can be applied without causing damage.
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Safe Working Load
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To ensure an accurate measurement of the diameter of a wire rope, you should measure the wire rope in (a) how many places on six-stranded rope and (b) how many places on eight-stranded rope?
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(a) Three (b) four
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Wire rope consists of what three parts?
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Wire, strands, and core. |
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Which of the following is NOT a requirement for performance as a competent signalman for a crane or hoist operation?
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Assist in operating the equipment, as needed.
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To ensure a load is stable and does not shift, you should rig the load so that its center of gravity is positioned in accordance with what requirement?
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Below the hook.
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Chain slings are desirable for what type of load?
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Hot and sharp edged loads.
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What type of collateral equipment is used to prevent crushing of a load?
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Spreader bars
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Which of the following defects should you look for during a fiber line sling inspection?
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-Deterioration caused by exposure to the weather. |
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The MSDS identifies the type of personnel protective clothing and equipement needed in the case of exposure.
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True.
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Wire-rope slings must be replaced when what percentage of wires are nicked or cut?
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4 percent
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Because gusty wind can affect loading and load-landing operations, you should take which of the following precautions?
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Avoid handling loads that have large wind-catching surfaces.
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The requirement to comply with a foreign country's HM/HW regulations (if more restrictive) is found in what document(s)?
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Host nation Status of Forces agreement.
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Bolts and heavy gauge wire may be used to fasten links of chain together.
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False.
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What is the minimum safe working distance from an energized conductor of 125,000 volts?
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10 ft
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Which of the following components is added to heavy equipment to aid in lifting?
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Lifting eyes
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Chafing gear is used to protect slings that are exposed to sharp edges.
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True.
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What is the most important rigging precaution?
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To determine the weight of all loads before attempting a lift.
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When the distance or atmospheric conditions prevent clear visibility for signaling, what other form of communication should you use?
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Two-way radio.
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Under certain circumstances, it is permissible to ride on a well-rigged load.
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False.
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The battalion air detachment must be capable of deploying within how many hours of notification?
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48.
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Two single slings can be combined to form a longer single sling.
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True.
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OPNAVINST 4110.2 establishes guidance and policy for what subject?
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Hazardous material control and management.
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Of the following OPNAV instructions, which ones cover the use, storage, and disposal of HM?
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OPNAVINST 4110.2 and 5100.23
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What is the primary cause of death for riggers on the job?
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Electrocution
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When the signalman desires to give the equipment operator instructions other than those established beforehand, the operator should perform what action first?
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Stop all motion of the load.
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Why is it important to match sets of slings?
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So the load strain will be equal and the load will come up evenly.
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What type of electrical diagram shows the relationship of major parts of a wiring circuit?
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Block.
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