更多"Because of the reduced （）in the dis"的相关试题:
[单项选择]Because of the reduced （） in the distillation system, some of the sea water boils as it flows through the tubes of the evaporator.
A. pressure
B. temperature
C. density
D. volume
[单项选择]Because of the reduced （） in the vacuum boiling evaporator, some of the sea water boils as it flows through the tubes.
A. temperature
B. water level
C. pressure
D. rate of flow
[单项选择]Accidental grounds in a shipboard electrical system must be repaired as soon as possible as they will （）
A. result in immediate power outages
B. damage circuit breakers
C. appear on the ground detection system
D. damage insulation and may cause outages
[单项选择]In a closed diesel engine freshwater cooling system, the amount of coolant flowing through the heat exchanger is controlled by the （）.
A. suction pressure regulator
B. thermostatic bypass valve
C. sea water temperature
D. water level in the expansion tank
[单项选择]Water allowed to accumulate in the hydraulic system oil will cause an oxidation process producing by- products which are normally （）.
A. gums, acids, and varnishes
B. removed by cellulose type filters
C. neutralized by oil additives
D. not removed by absorbent filters
[单项选择]SOLAS regulations require that the inert gas system shall be capable of delivering inert gas with an oxygen content of not more than what percentage?（）
A. 5%
B. 8%
C. 6%
D. 3%
[单项选择]Zinc rods are installed in the refrigeration system （）.
A. liquid strainer
B. liquid receiver
C. saltwater condenser
D. evaporator
[单项选择]In North America the majority of the weather systems move from（）.
A. north to south
B. south to north
C. east to west
D. west to east
[单项选择]Sludge formation in a diesel engine lube oil system is caused by（）
A. carbonization of oils from the combustion chambers
B. emulsions of lube oil and water
C. coagulation of unburned fuel below the piston rings
D. all of the above
[单项选择]When it is necessary to open a refrigeration system for repairs and the system will be open for more than a few minutes, the open ends of the system should be （）.
A. dehydrated
B. purged
C. plugged
D. evacuated
[单项选择]In a combination chain and wire rope mooring system，the anchor chain is deployed at the anchor end of the line to（）.
A. increase fatigue life of the system
B. reduce the time to retrieve the line
C. increase the holding power
D. reduce the catenary
[单项选择]The car will be guided by a differential GPS system that corrects errors（）in global positioning satellite signals.
A. arising
B. rise
C. raise
D. arouse
[单项选择]An orifice-check valve placed in a hydraulic system is used to（）
A. regulate the fluid flow in either direction
B. restrict movement of hydraulic fluid in one direction, but allow free movement in the other direction
C. allow free movement of hydraulic fluid in both directions
D. allow a restricted fluid flow in one direction only
[单项选择]The purpose of the deck seal in an inert gas system is to prevent（）.
A. flammable vapors from entering machinery space
B. flue gas escaping to atmosphere
C. inert gas escaping to atmosphere
D. air entering inert gas system
[单项选择]In a vacuum distillation system, the case is the higher the pressure, （）.
A. the saturation temperature is higher
B. the higher the saturation temperature
C. the higher is the saturation temperature
D. the saturation temperature is more high
[单项选择]I am proceeding（）reduced speed.
A. at
B. with
C. on
D. within
[单项选择]The load limitation of governor should be reduced when ship navigating at sea, the main reason is to（）
A. prevent the diesel engine surging
B. prevent governor from being damaged because of swing
C. reduce the probability of the crank shaft being torsional vibrated and resonated
D. prevent the main engine being overload or overspeed
[单项选择]Reduced capacity, accompanied by vibration and noise at the suction of a centrifugal pump is a result of （）.
A. cavitation
B. water hammer
C. fluid friction
D. steam knock
