Under normal weather and sea condition

1、Under identical load conditions，nylon，

Under identical load conditions，nylon，when compared with natural fiber line，will stretch（）.Aless and have less strengthBmore and have less strengthCmore and have greater strengthDless and have greater strength

2、When under maneouvring conditions with

When under maneouvring conditions with the machinery being manually operated the control unit or console should be （）Aautomatically controlledBcontinuously mannedCoff powerDnone of the above is true

3、Under normal conditions, the refrigera

Under normal conditions, the refrigerant enters the compressor in an operating refrigeration system as a （）.AliquidBdry saturated gasCwet saturated gasDsuperheated vapor

4、In extreme weather conditions, either

In extreme weather conditions, either hot or cold, control of the air conditioning plant presents （） difficulties.AfewBlittleCa littleDle

5、Under normal conditions a liferaft is

Under normal conditions a liferaft is released from itscradle by（）.Acutting the restraining strapBunscrewing the turnbuckle on the back of the cradleClifting one end of the raftDpushing the plunger on the center of the hydrostatic release

6、While sailing under normal weather and

While sailing under normal weather and sea condition, the basic parameter which is used to restrict the fuel injection of main engine is （）Apower of main engineBturbine rotation speedCspeed of main engineDexhaust temperature