更多"To keep injured survivors warm in t"的相关试题:
[单项选择]A water pump can not supply water after startingIt may be caused by ().
A. closed discharge valve
B. broken pipe line
C. worn shaft
D. both A and B
[单项选择]When the dock is refilled with water after docking repair, the first work which should be done by engineers is ()
A. igniting boiler
B. releasing air in sea water system
C. starting generator
D. cut off shore power
[单项选择]A centrifugal pump can’t supply water after startingYou should check ().
A. priming water
B. power supply
C. packing gland
D. bearing lubrication
[单项选择]You may find the time of slack water after low water in a certain port from().
A. Deadweight Scale
B. Tide Tables
C. Notices to Mariners
D. Table of Azimuth
[单项选择]Excessively warm water leaving condenser may be caused by()
A. fouled tubes in shell and tube condenser
B. too little or too warm condenser water
C. air or non-condensable gas in system
D. overcharge of refrigerant
[单项选择]After stopping oily water separator, sea water should be permitted for () minutes,()should be closed after stopping pump to reduce oxidation corrosion of inner wall.
A. 15;inlet value
B. 15;inlet and outlet value
C. 30;inlet value
D. 30;inlet and outlet value
[单项选择]()water is the water in the hold to keep the ship’s stability.
A. Bilge
B. Ballast
C. Slop
D. Sanitary
[单项选择]If cooling water flow through the after-cooler is interrupted,the power output of a turbocharged diesel engine will drop because the ()
A. turbocharger will stall
B. density of the air charge will decrease
C. scavenge effect will increase
D. exhaust pressure will increase
[单项选择]After abandoning a vessel,water that is consumed within the first 24 hours will().
A. pass through the body with little absorbed by the system
B. help to prevent fatigue
C. quench thirst for only 2 hours
D. help to prevent seasickness
[单项选择]When distilling salt water the cooling water discharging from the distiller is fed back to evaporator as feed water ().
A. to cut down the amount of cooling water needed
B. to prevent an excess amount of cooling water from being discharged to the bilges
C. to supply hot water to the evaporator for more economical operation
D. None of the above is tree
[单项选择]When distilling sea water the cooling water discharging from the distiller is fed back to evaporator as feed water ().
A. to decrease scale formation
B. for better cooling effect
C. for more economical purpose
D. to raise vacuum
[单项选择]The water level showing in a boiler water gauge glass is usually () during working.
A. higher than the actual drum water level
B. equal to the actual drum water level
C. increasing due to steam condensation in the glass
D. lower than actual drum water level
[单项选择]The fresh water generator produces fresh water ().
A. by cooling sea water
B. by heating sea water
C. by evaporation of sea water
D. by purifying sea water
[单项选择]() water is more expensive than fresh water It has high specific heat and low viscosity.
A. Distilled
B. Distilling
C. Boiling
D. Boiled
[单项选择]The oil () in the discharging water from oil water separator exceeds 15 PPM without alarm, because the coil was burnt out.
A. filter
B. hole
C. pollution
D. content
[单项选择]() is the production of pure water from sea water by evaporation and re-condensing.
A. Evaporation
B. Circulation
C. Condensation
D. Distillation
[单项选择]We use () to distill fresh water from sea water.
A. engine
B. sea water pump
C. cylinder cooler
D. fresh water generator
[单项选择]Farmers use water in many ways.() they use water to grow crops.
A. In fact
B. For example
C. Besides
D. Because of this