更多"In a chilled water air conditioning"的相关试题:
[单项选择]To predict the actual depth of water using the Tide Tables，the number obtained from the Tide Tables is（）.
A. the actual depth
B. added to or subtracted from the charted depth
C. multiplied by the charted depth
D. divided by the charted depth
[单项选择]The latent heat of water vapor in air is dependent upon the （）
A. dry bulb temperature
B. wet bulb temperature
C. dew point
D. dry point
[单项选择]（）reters to be amount of water vapour in the air.
A. Humidity
B. Temperature
C. Precipitation
D. Wind
[单项选择]A definite advantage of using water as a fire extiguishing agent is its characteristic of（）.
A. alternate expansion and contraction as water in a liquid state becomes a vapor
B. absorption of smoke and gases as water is converted from a liquid to a vapor
C. rapid contraction as water is converted from a liquid to a vapor
D. rapid expansion as water absorbs heat and changes to steam
[单项选择]Such problem （）air, water, and noise pollutions are becoming more and more serious in some big cities.
A. like
B. as
C. of
D. about
[名词解释]Instruction Decode Unit
[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]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]Air receivers installed in starting air systems are to be （）.
A. cylindrical in shape with service connections located at the top and bottom
B. opened and made available for inspection during biannual inspections provided
C. with automatic drain traps for the removal of moisture
D. so installed as to make the drain connections effective under extreme conditions of trim
[单项选择]Compressed air is supplied by air compression to （）.
A. the air receivers
B. the starting valves
C. the cylinder covers
D. the distributors
[单项选择]Air line lubricators are used in compressed air systems to lubricate （）.
A. the suction and discharge valves
B. tools and equipment served by compressed air
C. air line reducing valves
D. all of the above
[单项选择]In reference to air conditioning, when air attains the maximum amount of moisture it can hold at a specific temperature, it is said to be （）.
A. superheated
B. saturated
C. condensed
D. convected
[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
[名词解释]Bus Interface Unit BIU
