更多"Distilled water is now largely used"的相关试题:
[单项选择]When water is used to fight a fire on board a ship，the effect of the weight of the water must be taken into account. How much sea water will increase the weight displacement by one ton?（）
A. 64 cubic feet
B. 35 cubic feet
C. 100 gallons
D. 500 liters
[单项选择]Diesel engine jacket water is used in the distillation process as the （）.
A. coolant for the distillate
B. coolant for the brine cooler
C. means of heating the feedwater
D. primary means of producing a vacuum within the distiller
[单项选择]Fresh water is used for the cooling of cylinder jackets and （） of the marine diesel engine.
A. cylinder covers
B. lubricating space
C. crosshead
D. exhaust manifold
[单项选择]Grandpa（）to water the flowers now, It’s going to rain soon.
A. isn’t needing
B. needn’t
C. doesn’t need
D. needs
[单项选择]Oil water separators are used to ensure that ships dont discharge oil when pumping out （）.
A. ballast water
B. boiler water
C. bilge water
D. sewage water
[单项选择]Sea water is not used directly as a coolant because of （）.
A. low specific heat
B. high specific heat
C. corrosive action
D. high viscosity
[单项选择]The remaining oil/water mixture now flows down into the fine separating compartment and moves slowly between the（） in the Turbulo separator.
A. catch plates
B. swash plates
C. cover plates
D. bedplates
[单项选择]Sea water is not directly used as a coolant for engines because of its （）.
A. low specific heat
B. corrosive action
C. high expense
D. acid property
[单项选择]Those generally used additives for cooling water are either anti-corrosion oils or inorganic（）.
A. gases
B. paints
C. inhibitors
D. detergent
[单项选择]（）any sick person on board now apart from the above-mentioned cases?
A. Have
B. Has
C. Is there
D. Are there
[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]Before the oily water is installed on board ships, it must have （）
A. IOPP
B. type approval certificate
C. cargo ship safety equipment certificate
D. cargo ship safety certificate
[单项选择]Water can’t be used to put out fires of （）
A. Class A
B. Class B
C. Class C
D. B+C
[单项选择]The pump used to send the bilge water into the oily water separator（）the mixture because this might create finer oil particles.
A. should agitate
B. should not agitate
C. should mix up
D. should not add up
[单项选择]（）on board ship are used to control and distribute the electrical energy generated by generators.
A. Governors
B. Alternators
C. Blackboards
D. Switchboards
[单项选择]Water fog from an all-purpose nozzle may be used to（）.
A. fight an electrical fire
B. fight a magnesium fire
C. eliminate smoke from a compartment
D. All of the above
[单项选择]Pipes made of plastic are now widely used in building as they are light and do not become （）in water.
A. ripe
B. instant
C. rotten
D. mature
[单项选择]（）is used to prevent the entry of sea water to the machinery space.
A. A special sealing gland
B. Propeller
C. Tailshaft
D. Sterntube bearing
