更多"A slow rise in the barometric press"的相关试题:
[单项选择]When observing a rapid rise in barometric pressure，you may expect（）.
A. Clear weather with no wind，but the possibility of rain or snow within 24 hours
B. Deteriorating weather with rain or snow
C. Heavy rain or severe thundershowers
D. Clearing weather，possibly accompanied by high winds
[单项选择]A decrease in barometric pressure is associated with all of the following except（）.
A. rising warm air
B. proximity to a low pressure area
C. inward spiraling circulation
D. clear dry weather
[单项选择]After a cold front passes the barometric pressure usually（）.
A. fluctuates
B. remains the same
C. remains the same，with clouds forming rapidly
D. rises，often quite rapidly，with clearing skies
[单项选择]A single barometric pressure reading of 28.60 indicates（）.
A. rapidly improving weather
B. deteriorating weather
C. a severe low pressure system
D. fair weather and calm
[单项选择]The rate of pressure rise during the period following fuel ignition in a diesel will result in （）
A. valve overlap
B. volumetric efficiency
C. turbulence of the air change
D. fuel efficiency
[单项选择]A steep barometric gradient indicates （）.
A. calms
B. light winds
C. strong winds
D. precipitation
[单项选择]Little or no change in the barometric reading over a twelve hour period indicates（）.
A. stormy weather is imminent
B. that present weather conditions will continue
C. a defect in the barometer
D. increasing wind strength
[单项选择]On the approach of a warm front the barometric pressure usually（）.
A. falls
B. rises
C. is steady
D. is unreliable
[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]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]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]Rotating flyweights acting against spring pressure make a simple type of （）.
A. governor
B. safety valve
C. reducing valve
D. feed water regulator
[名词解释]矢高（shi gao）rise of arc
[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]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
