When a cargo boom or crane is rated at varying capacities，there will be a table at the controls which relates safe working load to（）.

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• What is/are the advantage（s）of cranes over conventional cargo booms（）.

  A . Cranes are able to pick up and drop loads over a greater spotting area B . Increased safety because the deck is clear of running and standing rigging C . Simplicity of operation of the crane by its operator D . All of the above

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• A cargo boom is a（）.

  A . double sized mattress consists of more than 890 coils B . spar extending from a mast or a king post C . flap（Becker rudder）can be fitted to the rudder’s trailing edge D . bridle arrangement having a long beam of the length of the container

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• When carrying a cargo of asphalt or molten sulfur，which are carried at temperatures of over 300°F，one of the biggest dangers is（）.

  A . water in the tanks or pipelines B . having the cargo too cool C . explosion of vapors after discharge D . inadequate ullage space

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• On a ship’s crane，the load chart relates the allowable load to the combination of the boom length and（）.

  A . winch speed B . boom strength C . load radius D . cable strength

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• 0n cargo booms,preventers are（）.

  A . auxiliary guys B . extra fair leads C . steel bands D . sto

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• When possible，what should be the FIRST step in combating a fire on deck resulting from a cargo overflow or a leaking cargo line?（）

  A . Blanket the cargo spill with foam B . Prevent the spread of fire with a foam dam C . Apply CO on burning fuel at its source D . Shut off the transfer of cargo

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• 0n a crane ,the boom indicator tells the operator what angle the boom angle is compared to the（）.

  A . vertical position B . horizontal position C . boom stop angle D . minimum radius angle

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• How should you signal the crane operator to raise the boom and lower the load?（）.

  A . Extend arm with the palm down and and hold this position rigidly B . Place both fists in front of the body with the thumbs pointing outward each other C . Clasp hands in front of you body D . Extend arm with the thumb pointing up, and flex the finger s in and out for as long as the load movement is desired

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• How should you signal the crane operator to lower the boom and raise the load?（）.

  A . Extend arm and point finger in the direction to move the boom B . Extend arm with the thumb pointing downward and flex fingers in and out C . With f rearm vertical and forefinger pointing up,move hand in small horizond circles D . With arm extended downwards and forefinger pointing down,move hand in small horizontal circle

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• On cargo booms，preventers are（）.

  A . auxiliary guys B . extra fair leads C . steel bands D . sto

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• When the dew point of the outside air is lower than or equal to the dew point of the air in the cargo hold，you should（）.

  A . secure all ventilation B . shut down the exhaust blowers C . shut down the intake blowers D . ventilate the cargo hold

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• For a given weight of cargo，the stress on the heel block of a cargo boom（）.

  A . increases as the cargo closes the head while hoisting B . increases if the cargo runner is doubled up C . decreases as the boom is topped to a greater angle D . is determined by the thrust stresses on the boom

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• The load chart of a crane enables the operator to combine the load radius with boom length to determine the（）.

  A . maximum counter weight required B . minimum horsepower required C . hoist rope strength D . allowable load

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• How should you signal the crane operator to raise the boom?（）.

  A . Extend arm with the thumb pointing up and flex the fingers in and out B . Place both fists in front of the body with the thumbs pointing upward C . With forearm vertical and forefinger pointing up,move hand in small horizond circles D . Extend arm with the fingers closed and thumb upward

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• In cargo crane, （） for lifting the load.

  A . a hoisting motor B . a luffing motor C . a mooring motor D . a slewing motor

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• Which statement is TRUE concerning the tandem working arrangement of pedestal cranes when completing a quad lift? （）

  A . The discharge is slow due to the size of the cargo and all the cranes working together B . The cargo discharge can be accomplished with controlled pendulation C . The cargo discharge can be performed in port or at anchor D . The cranes enable the handling of heavy cargos without shoreside assistance

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• What is meant by the term“luffing the boom”of a crane（）．

  A . Stopping the boom B . Topping or lowering the boom C . Moving the boom left or right D . All of the above

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• （）cargo means to check all cargo loaded into or discharged from a vessel.

  A . Tallying B . Examining C . Weighing D . Handling

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• When a deck cargo is secured with chain or wire lashings and grab (pear) links，which statement is FALSE?（）

  A . The amount of take-up is limited by the length of the turnbuckle B . At the grab (pear) link，the slack end of chain should be led back and secured to the chain above the link C . The lashings should be inspected each day and any slack taken up D . The turnbuckle should be secured with a stick or lock nut

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• In a general cargo crane, three principal movements are （）； （）； （）.

  A . hoisting；luffing；slewing B . lifting；raising；lowering C . rotating；raising；handling D . hosting；lowering；moving

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• For any given pedestal crane，when the boom is lengthened，the lifting capacity is（）.

  A、 unchanged B、 decreased C、 eliminated D、 increased

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• The boom indicator on a crane will indicate the（）.

  A . length of the boom B . angle of the boom C . lifting capacity of the boom D . direction of the boom

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• When loading or unloading baled cargo on board,the straps（）to lift or drag the bales.

  A . are forbidden B . are allowed C . can be used D . are usually used

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• On a ship crane，the load chart relates the allowable load to the combination of boom length and（）.

  A . boom angle B . boom strength C . load radius D . cable strength

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