The loss of （） from an air compressor could lead to an overheated air discharge and possibly an explosion in the pipelines leading to the air reservoir.

[单选题]If a reciprocating air compressor has a knock occurring in frequency with its operating RPM, the cause is probably _____.A．misalignment or worn main bearingsB．insufficient cylinder lubricationC．defective or poorly fitted valvesD．All of the above

[单选题]A． sudden power loss from a turbocharged and after-cooled diesel engine is an indication of a/anA．turbocharger malfunction or failureB．crankcase exhauster overloadC．overload on the intercoolerD．obstruction in the engine cylinders

[单选题]To prevent loss of stability from free communication flooding you should（）.A . close the cross-connection valve between the off-center tanksB . completely flood high center tanksC . ballast double bottom wing tanksD . close any opening to the sea in

[单选题]A loss of economic efficiency from price regulation is least likely to resu

[单选题]The partial loss of or damage to the cargo is not recoverable from theinsur

[单选题]The partial loss of or damage to the cargo is not recoverable from theinsur

[单选题]He [ventured]that plants draw part of their nourishment from the air.A.dare

[判断题]Partial loss or damage is not recoverable from the insurers resulting fromn

[多选题]Which of the following coverage usually covers partial loss or damageresult

[判断题]Partial loss or damage is not recoverable from the insurers resulting fromn