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发布时间:2023-10-14 20:18:01

[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

更多"According to the way the energy of "的相关试题:

[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]The exhaust pipe must be gas tight throughout its entire length otherwise().
A. bilge water may enter the exhaust pipe
B. entry of air may cause vapor lock
C. carbon monoxide may enter the interior of the vessel
D. the joint gaskets may be blown
[单项选择]According to the way the steering gear is operated, the steering gear may be divided into: hand - steering, () and automatic steering.
A. hydraulic steering
B. follow-up steering
C. remote control steering
D. air controlled steering
[单项选择]After passing through the turbine the exhaust gas is conducted out into the().
A. intercooler
B. compressor
C. cylinder
D. open air
[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]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]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
[单项选择]The water level of an exhaust gas boiler which is independent of the auxiliary boiler and just as the extra heating surface of it ()
A. will be modulated in proportion
B. will be modulated in proportion and integral
C. will be modulated in proportion and differential
D. will not be modulated at all
[单项选择]For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?()
A. the temperature and flow quantity of the exhaust gas from M.E
B. the quantity of steam demanded
C. the rotary speed and the cooling water temperature of main engine
D. efficiency of M.E turbocharger
[单项选择]() the oxygen content in the exhaust gas, () the combustion is.
A. The lower;the worse
B. The higher;the better
C. The lower;the better
D. The highest;the worst
[单项选择]Each inert gas system gas main must have an automatic shut down valve at the outlet of the gas production plant. This valve must close automatically upon().
A. cargo pump failure
B. blower failure
C. deck seal low water level
D. low inert gas temperature

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