更多"Drinking salt water will （）"的相关试题:
[单项选择]Drinking salt water will（）.
A. be safe if mixed with fresh water
B. prevent seasickness
C. dehydrate you
D. protect against heat cramps
[单项选择]When collecting condensation for drinking water，（）.
A. a sponge used to mop up and store condensation must be kept salt free
B. only condensation on the bottom of the canopy should be collected
C. it should be strained through a finely woven cloth
D. chlorine tablets should be used to make it drinkable
[单项选择]Seawater may be used for drinking water （）.
A. at a maximum rate of two ounces per day
B. after mixing with an equal quantity of fresh water
C. if gather during or immediately after a hard rain
D. under no circumstance
[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]The vacuum maintained in the salt water feed heater shell of a flash-type evaporator is generally accomplished by （）.
A. a separate air ejector unit
B. a direct unimpeded connection between second stage and salt water feed heater
C. either by vacuum drag or an external line from the first stage via a fixed orifice
D. the fixed orifice provided in the steam supply line
[单项选择]What does salt water draft mean?（）.
A. It means summer draft
B. It means maximum draft
C. It means fresh water draft
D. It means seawater draft
[单项选择]What DOCS SALT WATER DRAFT means?（）.
A. It means summer draft
B. It means Maximum draft
C. It means Fresh Water draft
D. It means Seawater Draft
[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]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]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]Unfortunately, his gambling and drinking habits make him a very（）person.
A. self-reflective
B. self-confident
C. self-conscious
D. self-destructive
[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]Seawater may be used for drinking（）.
A. under no conditions
B. at a maximum rate of two ounces per day
C. if gathered during or immediately after a hard rain
D. after mixing with an equal quantity of fresh water
[单项选择]（） is used for washing and drinking.
A. The ballast system
B. The salt water system
C. The bilge system
D. The domestic system
[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
