High speed aircraft is made of metals that can（）both high temperature and pressure.

Highspeed aircraft is made of metals that can ____ both high tempe rature and pressure.

A.stand by   B.put up with C.withhold    D.withstand

High exhaust temperature and black smoke exhausting from an auxiliary diesel engine can be caused by _____.

A.engine overload

B.low combustion temperature

C.plugged fuel nozzle holes

D.excessive compression pressure

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?

A.Both seamless mild steel and copper may be used for middle pressure steam

B."hpair" means high pressure air

C.The feed piping of the boilers can be made of seamless mild steel

D.All oil pipings are made of mild steel

Under normal operating conditions, the highest temperature and pressure conditions existing in a flash-type evaporator will occur in the _____.

A.first stage

B.second stage

C.distillate cooler

D.salt water feed heater

A.compressor

B.condenser

C.evaporator

D.expansion valve

A compound gage is used to measure _____.

A.temperature and pressure

B.humidity and temperature

C.pressure and vacuum

D.pressure and humidity