Which is the pollution prevention equipment、-最需题库

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1When started, a complete oily water separating unit is first filled______. The oily water mixture is then pumped through the inlet pipe into the coarse separating compartment.
A.with dirty water
B.with clean water
C.by oily water
D.by mixed water
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2Oily water separators are used to ensure that ships don't discharge oil when pumping out ______.
A.ballast water
B.boiler water
C.bilge water
D.sewage water
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3In order to achieve greater dehumidification(除湿) with an air conditioning system, you should ______. I. reduce the cooling coil temperature II. increase the re-heater temperature
A.I only
B.II only
C.Both I and II
D.Neither I nor II
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4If air at 95 ℃ dry bulb temperature and 50% relative humidity is conditioned to 75 ℃ dry bulb temperature and 50% relative humidity, it is an example of ______.
A.cooling only
B.cooling and humidifying
C.cooling and dehumidifying
D.adiabatic(绝热的) cooling
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5The dew point of air is reached when the wet bulb temperature is ______.
A.twice the dry bulb temperature
B.10℃ above the dry bulb temperature
C.5℃ above the dry bulb temperature
D.equal to the dry bulb temperature
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6The oil sludge is burnt in the ______onboard. I’ll show you the ashes.
A.boiler
B.main engine
C.auxiliary engine
D.incinerator
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7Most marine biological sewage treatment plants consist of all the following statements except ______.
A.aeration tanks
B.settling tanks
C.disinfection agent
D.anaerobic bacteria (厌氧菌)
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8Great care is dedicated to the removal of _____ from the scavenge air.
A.gravity
B.viscosity
C.density
D.humidity
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9Dirty oil must be _____ before being used again.
A.mixed with clean oil
B.purified
C.heated
D.strained
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10When a vacuum boiling evaporator works, the hot jacket water will pass over the tube stack and ___ the sea water passing through the tubes.
A.dispose
B.dissolve
C.heat
D.dissipates
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