更多"Sea water temporarily pumped into t"的相关试题:
[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]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]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]How many PPM of the oily water can be pumped out within 12 miles along the China coast line?（）.
A. at least 15 PPM
B. about 15 PPM
C. up to 15 PPM
D. no less than 15 PPM
[单项选择]Ballast water can only be（）in cargo tanks in exceptional cases where the particular character of the operation of an oil tanker renders it necessary to carry ballast water in excess of the quantity required，provided that such operation of the oil tanker falls under the category of exceptional cases as established by the Organization.
A. carried
B. contained
C. filled
D. stuffed
[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]Some sea water came into the wheel house during the voyage due to（）the window thereof.
A. not close
B. not closing
C. we didn't close
D. not to be closed
[单项选择]Biodegradation of the oil slick in sea water is assisted by all the following marine micro-organisms which are capable of metabolising oil compounds except（）.
A. bacteria
B. moulds
C. yeasts
D. seals
[单项选择]In a general oil cooler circulated by sea water, the oil is at a higher pressure, the result being that any leak in the cooler will mean a loss of （）.
A. oil
B. sea water
C. air
D. fresh water
[单项选择]In an oil cooler circulated by sea water, the oil is at a larger pressure, the result being that any leak in the cooler will mean a loss of （）.
A. oil
B. sea water
C. refrigerant
D. fresh water
[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]（）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
[单项选择]Bilges may be pumped （）.
A. on the outgoing tide
B. overboard after dark
C. overboard through an oily water separator
D. anytime in an emergency, i-emain engine lube oil failure
[单项选择]Regulations require that cargo tanks carrying grades D or E liquids on tank barges be vented with（）.
A. gooseneck vents and flame screens
B. pressure-vacuum relief valves
C. branch vent lines and a vent header
D. forced draft blowers
[单项选择]When oily ballast has been pumped overboard，an entry must be made in the（）.
A. Oil Record Book
B. Official Logbook
C. deck rough log
D. engine rough log
[单项选择]Prior to backloading portable tanks or drums onto an offshore supply vessel，check that each tank is（）.
A. painted yellow with diagonal black striping
B. capped and checked for leaks
C. coated with non-corrosive protection
D. mounted on pallets
