更多"A loud clicking noise from the valv"的相关试题:
[单项选择]A loud noise （） my attention from cooking and everything was burnt.
A. divided
B. diverted
C. focused
D. separated
[单项选择]I can hear the noise from cars（）
A. in night
B. at night
C. at evening
[单项选择]The valve that prevents water from backing out of the boiler into the feed line is the（）.
A. bottom-blow valve
B. skin valve
C. feed-check valve
D. feed-stop valve
[单项选择]To prevent accidents from occurring, special valve chests are used in such cases in which interchangeable blanks and connecting passages are incorporatedThe bold and italic word “which” means （）.
A. accidents
B. special valve chests
C. interchangeable blanks
D. connecting passages
[单项选择]Increasing the valve clearance between a valve stem and rocker arm, will result in the valve （）
A. closing later
B. opening sooner
C. staying open for a shorter period of time
D. staying open for a longer period of time
[单项选择]The noise of the traffic（）Paul from his work.
A. prevented
B. distracted
C. angered
D. upset
[单项选择]The needle valve in a fuel valve will （） when the fuel pressure action on the needle valve tapered face exerts a force lower than that of the spring compression.
A. be jammed
B. be opened
C. be seated
D. be broken
[单项选择]Thermostatic expansion valve are （）.
A. either all the way open or all the way closed
B. normally open
C. throttled depending on load
D. controlled by suction pressure
[单项选择]During working, thermostatic expansion valve should be （）.
A. either all the way open or all the way closed
B. normally fully open
C. throttled depending on load
D. controlled by liquefied pressure
[单项选择]Valve的中文含义是（）。
A. 电压
B. 电阻
C. 电容
D. 电流
[单项选择]Adjustments to the compensating needle valve in a hydraulic governor should be made with the engine at （）
A. maximum power at a normal load
B. maximum power and load under normal conditions
C. half speed and normal temperature
D. normal operating temperature without a load
[单项选择]Exhaust valve openings in a diesel engine cylinder head are made as large as practical to （）
A. increase back pressure during the exhaust process
B. facilitate periodic replacement of the valves
C. reduce the pumping loss associated with scavenging
D. reduce tension on valve springs
[单项选择]Excessive valve lash in an auxiliary diesel engine will cause the valves to open（）
A. later and close sooner
B. sooner and close later
C. sooner and close sooner
D. later and close later
[单项选择]The music was so loud that she had to raise her voice to make herself（）
A. hear
B. heard
C. to hear
D. hearing
[单项选择]Noise in a refrigeration compressor can be caused by （）.
A. worn bearings and piston pins
B. slugging due to flooding back
C. too much oil in circulation
D. All of the above
[单项选择]The valve best suited for throttling gas or liquid flow in a pipeline is the（）.
A. gate valve
B. globe valve
C. check valve
D. plug cock
[单项选择]A three-way thermostatic control valve regulates the diesel engine cooling water temperature by passing a portion of the water （）.
A. around the engine
B. around the cooler
C. to the expansion tank
D. overboard
[单项选择]The bulb for the thermal expansion valve is located（）
A. in the middle of evaporator coils
B. near the evaporator coil outlet
C. near the evaporator coil inlet
D. on the bottom row of evaporator coils
[单项选择]The thermostatic valve has a throttling action, that is to say the valve can（）
A. stop the refrigerant from flowing
B. force the refrigerant to flow
C. cause the refrigerant pressure to rise
D. cause the refrigerant pressure to fall
