更多"After passing through the turbine t"的相关试题:
[单项选择]After passing through the expansion valve the refrigerant should be in the state of （）.
A. vapor
B. liquid
C. solid
D. None of the above is tree
[单项选择]The cleaned heated oil, after passing through the centrifuges, is to be pumped to a （）.
A. settling tank
B. service tank
C. ballast tank
D. drain tank
[单项选择]For a generator engine, after passing through the turbine the exhaust gas may be conducted out into the （）.
A. intercooler
B. open air
C. oil fired boiler
D. B and C
[单项选择]In motor-ships, （）, after passing through main and motion bearings and oil cooled pistons, etcis either retained in the bedplate.
A. the fuel oil
B. the lubricating oil
C. the refrigerating oil
D. the hydraulic oil
[单项选择]Higher than normal temperature air passing through the intake of a diesel engine will result in（）
A. greater overall efficiency
B. greater fuel economy
C. lower horsepower
D. lower compression ratio
[单项选择]A direct current passing through a wire coiled around a soft iron core is the description of a simple（）.
A. magnetic shield
B. electromagnet
C. piezoelectric device
D. electromagnetic domain
[单项选择]Diesel engine exhaust gas temperatures can be used to determine individual cylinder （）.
A. performance
B. horsepower output
C. fuel consumption
D. scavenge effect
[单项选择]Exhaust gas pyrometers are useful for（）
A. detecting faulty combustion in individual cylinders
B. adjusting fuel racks to maintain equal loading between cylinders
C. adjusting the load limit setting of the governor at idle conditions
D. calculating engine horsepower
[单项选择]When would the available energy of the exhaust gases of a two-stroke/cycle diesel engine be insufficient to drive an exhaust gas turbocharger, resulting in the incorrect amount of air for combustion?（）
A. During operation at low speed
B. During operation at rated speed, but low power output
C. During acceleration
D. All of the above
[单项选择]Modem engines make use of exhaust gas driven turbo-chargers to supply pressurized fresh air for （） and supercharging.
A. scavenging
B. starting
C. cooling
D. blowing
[单项选择]By comparing the exhaust gas temperature of each cylinder, the operator can determine if the load is balanced throughout the engine. The device most commonly used is a（）
A. tachometer
B. pyrometer
C. dynamometer
D. calorimeter
[单项选择]An exhaust gas bypass is installed on a waste heat boiler in order to （）.
A. bypass exhaust gas at high loads to prevent excessive back pressure
B. bypass a portion of the exhaust gas at peak loads for better efficiency
C. recycle exhaust gas to the turbocharger
D. minimize moisture condensation in the boiler gas passages at low loads
[单项选择]Modem engines （） exhaust gas driven turbo-chargers to supply pressurized fresh air for scavenging and supercharging.
A. make use of
B. have made the use of
C. by means of
D. make advantage of
[单项选择]Modern engines （） exhaust gas driven turbo-chargers to supply pressurized fresh air for scavenging and supercharging.
A. are made of
B. are made from
C. make use of
D. are used to
[单项选择]According to the way the energy of the exhaust gases is utilized, pressure-charging can be divided into two main systems, namely, the constant-pressure system and （）.
A. the pulse-phase system
B. the pulse Doppler system
C. the pulse system
D. the pulse interval
[单项选择]The diesel engine exhaust gas bypass, as fitted with some waste heat boilers, is installed to （）
A. prevent engine back pressure at heavy loads
B. increase total engine efficiency at low loads
C. prevent boiler corrosion at low engine loads
D. improve engine fuel consumption at any load
[单项选择]The normal color of the exhaust gas of the diesel will be （）
A. achromatism or thin gray
B. thin white
C. sky-blue
D. black
