On cargo booms，preventers are（）.

相似题目

• 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

  查看最佳答案

• opes or wires attached to derricks to prevent them from swinging during cargo handling operations are（）.

  A . Preventers B . Side ropes C . Stays D . Guide line

  查看最佳答案

• 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

  查看最佳答案

• Making cargo plan for appropritate distribution of the cargo on board is（）duty.

  A . a ship's officer's B . a tallyman's C . a port planner's D . a foreman'

  查看最佳答案

• Good housekeeping on a vessel prevents fires by（）.

  A . allowing better access in an emergency B . eliminating potential fuel sources C . eliminating trip hazards D . improving personnel qualificatio

  查看最佳答案

• The purpose of a preventer as it is used on a conventional yard and stay cargo rig is to（）.

  A . allow greater than normal loads to be handled by the gear B . act as an inboard guy in the event the inboard guy parts during cargo handling C . assist the outboard guy in supporting stresses during cargo handling D . prevent the inboard guy from parting due to stresses during cargo handling

  查看最佳答案

• 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

  查看最佳答案

• 0n cargo booms,preventers are（）.

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

  查看最佳答案

• What entry on a dangerous cargo manifest concerning the classification of a cargo is correct? （）

  A . Class 8 B . Class 3 - flammable liquid C . Division 2.2 - nonflammable gas D . All of the above are correct

  查看最佳答案

• On your vessel，a wire rope for the cargo gear shows signs of excessive wear and must be replaced. In ordering a new wire for this 10-ton boom，what safety factor should you use?（）

  A . Three B . Five C . Six D . Seve

  查看最佳答案

• The ship is now too much listing to portaide. I suggest that you（）light cargo on portside and heavy cargo on starboard side.

  A . will put B . would put C . put D . shall put

  查看最佳答案

• Pinching of the cargo hose between the vessel and the dock should be prevented by（）.

  A . adjusting the hose supports B . laying out an excess length of hose on deck C . tying off the topping lifts and runners to winch heads D . All of the above

  查看最佳答案

• 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（）.

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

  查看最佳答案

• Stress on the topping lift of a swinging boom can be reduced by（）.

  A . rigging a back stay B . raising the boom C . increasing the mechanical advantage of the cargo purchase D . taking all slack out of the preventer

  查看最佳答案

• 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

  查看最佳答案

• A cargo exception would appear on（）.

  A . a Bill of Lading B . the cargo manifest C . the Export Declaration D . a Letter of Indemnity

  查看最佳答案

• Making cargo plan for appropriate distribution of the cargo on board is（）duty．

  A、 a foreman’s B、 a ship’s officer’s C、 a Tallyman’s D、a port planner’s

  查看最佳答案

• You are transporting dangerous cargo on your vessel．You must inspect this cargo（）.

  A . Daily B . Daily，at sea only C . After encountering rough weather D . After loading and prior to arrival in port only

  查看最佳答案

• The lifeboats on your vessel are stowed on cradles on deck and are handled by sheath-screw boom davits. Which of the following statements about launching a boat is TRUE?（）

  A . The boat should be hoisted a few inches clear of the cradle before cranking out the davits B . The inboard gripes should be cast off before the outboard gripes C . The outboard section of the cradle must be released D . The tricing pendants will automatically bring the boat alongside at the embarkation deck

  查看最佳答案

• Cargo booms must be weight tested to recertify the Safe Working Load (SWL) every（）.

  A . year B . two years C . four years D . five year

  查看最佳答案

• According to the regulations，to prevent excessive pressure buildup in cargo tanks containing LFG，they are fitted with（）.

  A . pressure vacuum relief valves B . excess flow valves C . safety relief valves D . flame scree

  查看最佳答案

• 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

  查看最佳答案

• 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

  查看最佳答案

• A support produces（）in a particular direction on its attached member if it prevents（）of the member in that direction, and it produces（）on the member if it prevents（）

  A．an external force, translation, an external couple moment, rotation B．an internal force, translation, an internal couple moment, rotation C．an internal force, movement, a couple moment, translation D．an external force, translation, an internal couple moment, translation

  查看最佳答案