Steel strapping is used for ______．A.bracingB.blockingC.tomming downD.lashing
Steel strapping is used for ______．
A.bracing
B.blocking
C.tomming down
D.lashing
相关考题：
A heavy steel device that is set on the sea floor and used as a drilling template in offshore drilling operations is called a ______.A.temporary guide baseB.permanent guide baseC.guide frameD.foundation template
You are scheduled to load a bulk shipment of steel turnings．Which statement is TRUE ________．A.The primary hazard of this cargo is that it is subject to spontaneous heating and ignitionB.The shipping papers should describe this cargo as Waste，Steel BoringsC.After loading，you may not sail if the temperature in each hold of steel turnings exceeds 54℃D.This cargo may not be transported in bulk unless a special permit is issued by the competent authorities
In the stowage of steel，fitting at least one ______ into the stow is vital as neglecting to do so can produce a large element of instability．A.non-steel packageB.smaller coilC.bigger coilD.locking coil
Tonnage openings must be closed by means of ______．A.Press boardB.Steel hatch boardsC.Steel platesD.Wooden hatch boards
What is the accepted standard for wire rope falls used in connection with the lifeboat gear ________．A.Six by seven galvanized wire ropeB.Six by twenty-four improved plow steel wire ropeC.Six by thirty-seven preformed fiber-core wire ropeD.Six by nineteen regular-lay filler wire rope
A half-height container is used ______.A.to carry cargos of low densityB.when stowage space is limitedC.to carry cargos such as steel products or drumsD.to double the stowage capacity of the vessel
Can animals be made to work for us?Some scientists think that one day animals may be trained to do a number of simple jobs that are now done by human beings.They point out that at a circus,for example,we may see elephants,monkeys,dogs and other animals doing quite skillful things．Perhaps you have seen them on the television or in a film．If you watch closely,you may notice that the trainer always gives the animal a piece of candy or a piece of fruit as a reward．The scientists say that many different animals may be trained to do a number of simple jobs if they know they will get a reward for doing them.Of course,as we know,dogs can be used to guard a house,and soldiers in both old and modem times have used geese to give warning by making a lot of noise when a stranger or an enemy comes near．But it may be possible to train animals to work in factories．In Russia,for example,pigeons which are birds with good eyesight,are being used to watch out for faults in small steel balls that are being made in one factory．When the pigeon sees a ball which looks different from others,it touches a steel plate with its beak．This turns on a light to warn people in the factory．At the same time a few seeds are given as a reward．It takes three to five weeks to train a pigeon to do this and one pigeon can inspect 3 000 to 4 000 balls an hour.Apes have been used in America in helping to make cars,and scientists believe that these large monkeys may be one day gather crops and even drive trains.Which of the following is not true?A.Scientists consider apes may drive trains some daB.Apes have worked in some factorieC.Apes may one day be used to gather cropD.An ape is not a large monke
The varnish is used to paint the （）(木制品) and deck rail.A、woodworkB、teamworkC、cargo workD、steel work
单选题A half-height container is used（）.Ato carry cargoes of low densityBwhen stowage space is limitedCto carry cargoes such as steel products or drumsDto double the stowage capacity of the vessel
单选题A heavy steel device that is set on the sea floor and used as a drilling template in offshore drilling operations is called a（）.Atemporary guide baseBpermanent guide baseCguide frameDfoundation template
单选题A heavy，thick-walled tube，usually steel，used between the drill pipe and the bit in the drill stem to weight the bit in order to improve its performance is called a（）.Aheavy-walled drill pipeBtool jointCdown hole toolDdrill collar
单选题What is the accepted standard for wire rope falls used in connection with the lifeboat gear?（）ASix by seven galvanized wire ropeBSix by twenty-four improved plow steel wire ropeCSix by thirty-seven preformed fiber-core wire ropeDSix by nineteen regular-lay filler wire rope
填空题Donald Jenkins of Halifax Regional Police suggests installing steel doors with a solid-steel strip.____
单选题（） are two vertical supports，usually steel，one each side of the centerline of the ship used to support booms.AShroudsBKing postsCStaysDTurnbuckles
单选题A fid is a（）.Amallet used when splicing wire ropeBsharp pointed crow bar used to unlay wire ropeCtapered steel pin used to separate wire ropeDtapered wooden pin used when splicing heavy rope
单选题A built-up exhaust valve is one in which （）.Athe stem and heads are made of different materialBlow-alloy steel is used throughoutCa replaceable valve disk is welded to the headDthe self-centering action comes from motion of the valve stem in the guide
单选题Seamless mild steel is used for steam (also copper for moderate pressure and temperature), h-pair, feed discharge and all oil fuel pressure pipingsAccording to the above sentence, which of the following statements is not true?（）ABoth seamless mild steel and copper may be used for middle pressure steamBhpair means high pressure airCThe feed piping of the boilers can be made of seamless mild steelDAll oil pipings are made of mild steel
单选题After more than one hundred years of steel production at Hallside, ______.Athe land could not be used for anything.Bit was impossible to use the land to build on.Cthe land could then be built on.Dthe land could be used for any purpose.
单选题Which of the listed devices could be used as a ring groove tool during preparation for the installation of new rings?（）ASteel brushBFine emery cloth or steel woolCA section of the removed compression ringDA case hardened scraper
单选题Strengthening damaged bulkheads by using wood or steel is called（）.AbracingBbatteningCblockingDshoring
单选题Cast iron and gunmetal fittings are used freely in small sizes at moderate pressure; large fittings, those for high pressure and temperature are cast or mild steelIn the above sentence, the word “those” means （）.Aeast iron firingsBmild steel fittingsCsmall fittingsDlarge fittings
单选题Which of the listed design features is found in an exhaust valve and NOT in an intake valve?（）AHard alloy steel constructionBBeveled edges on the valve headCLow alloy steel constructionDPoppet type design
单选题A vessel is constructed with a steel hull and an aluminum superstructure. Which statement is TRUE?（）AThe aluminum will provide greater resistance to the spread of fire by conductionBThe aluminum structure is usually attached to a steel coaming by a method that insulates the two metalsCIf the superstructure is stressed，an aluminum structure requires additional expansion joints to prevent fractureDThe steel at the area of the aluminum-to-steel connection must be closely checked for galvanic corrosion