Vehicle operators should ______ the chassis to take pressure（caused by the tension of the lashing）off the springs．A.braceB.lashC.block upD.secure
Vehicle operators should ______ the chassis to take pressure（caused by the tension of the lashing）off the springs．
A.brace
B.lash
C.block up
D.secure
相关考题：
The air crash was caused by the (). Thus, he should take all responsibility for that. A、crewB、pilotC、staffD、engine
If the head pressure of a reciprocating refrigeration compressor is excessiveA.the relief valve should open before the high pressure cutoutB.the relief valve should open and allow the excess refrigerant to flow to the receiverC.the high pressure cutout switch should operate before the relief valve opensD.you should close the discharging valve
What is TRUE of pressure/vacuum valves?A.They are designed to provide for the flow of small volumes of tank atmospheres caused by thermal variations in a cargo tankB.They should operate in advance of the pressure/vacuum breakersC.They should be kept in good working order by regular inspection and cleaningD.All of the above
Which variable factor affects the initial lashing requirements aboard Ro-Ro vessels?A.Age of vehicle or cargo unitB.Size and weight of vehicle/cargo unitC.Reputation of shipper concerning condition of cargoD.Air pressure in the vehicles tires
You are discharging cargo and the inert gas system is in operation to inert the tanks. The pressure in a tank being discharged starts to drop below the allowable limit. What action should you take?A.Cut in another IG fan to increase gas flowB.Open the pressure control valve until the pressure increasesC.Open the tank isolation valve to the fully open positionD.Reduce the pumping rate
You are on an ice-reinforced vessel about to enter packice．You should ______．A.enter the pack on the windward side where there is a well defined ice edgeB.trim to an even keel or slightly down by the bow to take maximum benefit of the ice reinforcementC.take maximum advantage of coastal leads caused by offshore windsD.look for areas of rotten ice and enter perpendicular to the ice edge
Dangerous goods required to be“carried on deck only”should not be carried on closed vehicle decks，but may be carried on open vehicle deck when authorized by the competent authority concerned．A.Under deckB.On deckC.On deck onlyD.Under deck only
An occluded front is caused by a(n) ______.A.low pressure areaB.high pressure areaC.area of calm airD.cold front overtaking a warm front
Under no circumstances______without looking carefully to the rear.A.should one back up a motor vehicleB.a motor vehicle should back upC.one should back up a motor vehicleD.should back up a motor vehicle
The school has made it a rule that no student shall take an illegal vehicle __________a school bus.A.other thanB.rather thanC.or rather D.or else
I asked my teacher_______.A.what courses should I takeB.should I take what coursesC.I should take what coursesD.what courses I should take
他们应该照看系泊缆绳。（）A、They should take care of the mooring lines.B、They should take care of the gangway.C、They should take care of anchors.D、They should take care of anchor chains.
单选题他们应该照看系泊缆绳。（）AThey should take care of the mooring lines.BThey should take care of the gangway.CThey should take care of anchors.DThey should take care of anchor chains.
单选题During storm conditions on a vessel，the mooring tensions should be adjusted so that（）.Aall mooring lines have a different tensionBthe leeward lines have higher tension than the windward linesCthe maximum tension of the most heavily loaded line does not exceed the safe working loadDall horizontal tension forces on the windward lines are no greater than the vertical tension forces
单选题Which variable factor affects the initial lashing requirements aboard Ro-Ro vessels? （）AAge of vehicle or cargo unitBSize and weight of vehicle/cargo unitCReputation of shipper concerning condition of cargoDAir pressure in the vehicles tires
单选题An occluded front is caused by a(n)（）.Alow pressure areaBhigh pressure areaCarea of calm airDcold front overtaking a warm front
单选题Failure of the burner flame in an auxiliary boiler would probably be a result of（）Awater in the fuel oilBbroken high tension leadsCincorrect electrode settingDfull fuel pressure at the nozzle
单选题The manufacturers refused to take all（）for damage caused by misuse.AdutyBresponsibilityCobligationDshare
单选题If the head pressure of a reciprocating refrigeration compressor is excessive, （）.Athe relief valve should open before the high pressure cutoutBthe relief valve should open and allow the excess refrigerant to flow to the receiverCthe high pressure cutout switch should operate before the relief valve opensDyou should close in on the suction valve
单选题Damaged bulkheads often take a permanent set which is independent of the panting or bulge caused by water pressure. To control this，you should（）.Ainstall shoring so the shoring supports the damaged bulkheads without pushing on themBinstall shoring so that it pushes on the damaged bulkhead while supporting itCuse jacks or chain falls to remove the set before installing shoresDplace sandbags by the bulkhead without installing shores
单选题If the head pressure is too high,（）Athe relief valve should open before the high-pressure cutoutBthe relief valve should open and let excess refrigerant go to receiverCthe high-pressure cutout switch should operate before the relief valve opensDclose in on the suction valve
单选题Dangerous goods required to be “carried on deck only” should not be carried on closed vehicle decks，but may be carried on open vehicle deck when authorized by the competent authority concerned. （）Aunder deckBon deckCondeck onlyDunder deck only
单选题You are discharging cargo and the inert gas system is in operation to inert the tanks. The pressure in a tank being discharged starts to drop below the allowable limit. What action should you take? （）ACut in another IG fan to increase gas flowBOpen the pressure control valve until the pressure increasesCOpen the tank isolation valve to the fully open positionDReduce the pumping rate
单选题A burner responsible for producing black smoke in an automatic auxiliary boiler, would be caused by a （）Adefective solenoid valveBdirty fuel nozzleCgrounded high tension leadDfaulty ignition cable connector
单选题Excessively low air pressure occurring in the intercooler of a reciprocating air compressor is caused by（）.Aleaky discharge valves on the LP cylinderBleaky discharge valves on the HP cylinderCinsufficient intercooler coolingDlow ambient air pressure
单选题An auxiliary reservoir for starting auxiliary engines should be kept at （）.Alow pressure at all timesBfull pressure at all timesClow pressure at intermittenceDfull pressure at intermittence
单选题What is TRUE of pressure/vacuum valves? （）AThey are designed to provide for the flow of small volumes of tank atmospheres caused by thermal variations in a cargo tankBThey should operate in advance of the pressure/vacuum breakersCThey should be kept in good working order by regular inspection and cleaningDAll of the above