更多"Charging-air pressure increases if "的相关试题:
[单项选择]The fuel oil pressure and forced draught pressure should be matched to ensure good combustion with a full steady flameIn the sentence the word “match” means （）
A. join with
B. mix
C. be equal to
D. be constant
[单项选择]The vapor pressure of a gas is the pressure necessary to keep it in a(n)（）.
A. soluble state
B. solid state
C. liquefied state
D. inert state
[单项选择]High pressure and low pressure alarms must be tested（）.
A. no earlier than 24 hours prior to loading
B. no later than 24 hours prior to loading
C. anytime prior to loading
D. weekly
[单项选择]Which of the engine components listed increases air charge density and helps to improve engine operating efficiency?（）
A. Intake manifold
B. Water-cooled exhaust system
C. After-cooler
D. Exhaust diffuser
[单项选择]
Exhaust temperature increases in all cylinders, the possible cause may be（）
(1) increased scavenging air temperature
(2) air in fuel pumps and fuel valves
(3) fouling of air and gas passages
A. (1)+(2)
B. (1)+(3)
C. (2)+(3)
D. (1)+(2)+(3)
[单项选择]As the displacement of a vessel increases, the detrimental effect of free surface（）.
A. increases
B. decreases
C. remains the same
D. may increase or decrease depending on the fineness of the vessel's form
[单项选择]The tension on an anchor cable increases so that the angle of the catenary to the seabed at the anchor reaches 10°. How will this affect the anchor in sandy soil?（）
A. It will have no effect
B. It will increase the holding power
C. It will reduce the holding power
D. It will cause the anchor to snag
[单项选择]The holding power of an anchor increases when the（）.
A. amount of chain lying along the bottom increases
B. length of the catenary is reduced
C. mooring line tension is increased
D. amount of chain lying along the bottom decreases
[单项选择]Rotating flyweights acting against spring pressure make a simple type of （）.
A. governor
B. safety valve
C. reducing valve
D. feed water regulator
[单项选择]Fuel scarcities and price increases（）automobile designers to develop completely new lines of small cars and trucks.
A. prompted
B. persuaded
C. imposed
D. enlightened
[单项选择]As the amount of moisture in the air increases, the difference between the dry bulb and wet bulb temperature will （）.
A. increase
B. decrease
C. remain unchanged
D. be greatest at dew point
[单项选择]The primary reason low pressure evaporators produce distillate more efficiently, and with less scale formation, than high pressure evaporators is （）.
A. evaporation is accomplished in a vacuum
B. due to the higher temperature of the incoming feed
C. due to the latent heat of evaporation principle
D. evaporation in a submerged medium produces more distillate
[单项选择]A more sophisticated pressure reducing valve incorporates a pilot valve which controls the fluid above the valve operating piston in response to downstream pressureThe bold and italic word “which” means （）.
A. a pressure reducing valve
B. a pilot valve
C. an operating piston
D. downstream pressure
[单项选择]Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the（）
A. double bottom fuel oil tank temperature
B. heater supply steam flow
C. pressure of the fuel supplied to the burners
D. attemperator steam flow in the heater discharge circuit
[单项选择]An increased pressure differential between the inlet and outlet of a strainer usually indicates the strainer is （）
A. holed
B. fouled
C. clean
D. dry
[单项选择]A substantial increase in crankcase pressure could be an indication of （）
A. excessive lube oil pressure
B. the proper seating of new rings
C. a worn cylinder liner
D. a malfunctioning cylinder relief valve
[单项选择]Reid vapor pressure is（）.
A. exerted by liquid cargo on the sides of a tank
B. exerted by liquid cargo on a cargo hose body
C. the lowest temperature and pressure that will cause a flammable liquid to give off vapors
D. a measurement of the amount of flammable vapors given off by a liquid at a certain temperature
[单项选择]An increase in crankcase pressure generally indicates（）
A. worn connecting rod bearings
B. worn engine cylinder liners
C. high cylinder firing pressure
D. stuck spring-loaded manhole covers
