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透平进口温度(turbine inlet temperature(TIT))
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更多 “透平进口温度(turbine inlet temperature(TIT))” 相关考题
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If the exhaust gas temperature of the incinerator is too high, or if sparks are developed, What should you do?
A.Close the inlet and outletvalves for diesel oilB.Open the air nozzles in the secondary combustion chamber until it stopsC.Open the air nozzles in the primary combustion chamber until it stopsD.Close inlet valve for pressurized air
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The high air velocity leaving the compressor of an exhaust gas turbocharger is converted to pressure in the_______.A.inlet nozzle ringB.turbine wheel bladeC.diffuser passagesD.inlet volute
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The relative air pressure in the inlet manifold of a turbocharged diesel engine is usually______.A.greater than the average exhaust manifold pressureB.less than the average exhaust manifold pressureC.greater at the turbine wheel than at the impellerD.greater at reduced engine speed
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Which method should be used to warm up the pump turbines prior to discharge ________.A.Lock the turbine rotor and slowly bleed in steam until operating temperature is reachedB.Run the pump at high speed with the discharge valves closedC.Run the turbine at slow speed with the pump disconnectedD.Shut the discharge valve and run the pump at slow speed
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透平[turbine]将流体工质中蕴有的能量转换成机械功的机器。又称涡轮、涡轮机。透平是英文turbine的音译,源于拉丁文turbo一词,意为旋转物体。透平的工作条件和所用工质不同,因而其结构型式多种多样,基本工作原理()。A、不同B、完全相同C、相似D、也多种多样
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根据移动基站验收规范,在OMT定义的外告警,Inlet(ID)Class8所对应的告警为()。A、THUNDERBOLT ALARMB、FIRE ALARMC、TEMPERATURE ALARMD、HUMIDITY ALARM
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单选题The purpose of an after-cooler is to()A
reduce the turbocharger operating temperatureB
increase the pressure of the inlet airC
increase the density of the inter airD
reduce the blower operating temperature
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单选题Which of the following statements is not true concerning symptom of a fire in the scavenge air box?()A
an increase in the exhaust temperature of the affected cylinderB
the turbocharger may surgeC
the explosion pressure in all cylinders will rise violentlyD
smoke from the turbocharger air inlet filter will be seen
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单选题An increasing head pressure in a refrigeration system, without any corresponding change in the cooling water inlet temperature, would probably be caused by ().A
restriction in refrigerant pipingB
air and non-condensable gases in the condenserC
water in the refrigerantD
flooding back of liquid refrigerant from the evaporator
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单选题A re-heater in an air conditioning system functions to ().A
control inlet air temperatureB
control inlet air volumeC
maintain relative humidity at 15%D
restore conditioned air temperature to a comfortable level
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单选题()can cause oil flow from water outlet of a separator.A
Oil inlet valve opening too quicklyB
Oil temperature too highC
Diameter of gravity disc too smallD
Viscosity of oil too low
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单选题The temperature differential occurring between the inlet temperature of the fluid to be cooled and the outlet temperature of the cooling medium in a shell-and-tube heat exchanger is greatest in which of the flow designs listed?()A
CrossB
ParallelC
CounterD
Circular
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单选题Which method should be used to warm up the pump turbines prior to discharge().A
Lock the turbine rotor and slowly bleed in steam until operating temperature is reachedB
Run the pump at high speed with the discharge valves closedC
Run the turbine at slow speed with the pump disconnectedD
Shut the discharge valve and run the pump at slow speed
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单选题The relative air pressure in the inlet manifold of a turbocharged diesel engine is usually()A
greater than the average exhaust manifold pressureB
less than the average exhaust manifold pressureC
greater at the turbine wheel than at the impellerD
greater at reduced engine speed
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单选题Which of the following problems can cause an above normal air temperature to develop in the intake manifold of a turbocharged and after-cooled diesel engine?()A
Faulty turbocharger turbine diffuser ringB
Faulty turbocharger compressor ringC
Insufficient cooling water flowD
Clogged air intake filters
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单选题Which condition indicates the air side fouling of an after-cooler on a turbocharged diesel engine?()A
An increased air temperature differential between the cooler inlet and outletB
A decrease in the air pressure differential across the coolerC
Excessive condensate forming in the air boxD
A decrease in the air temperature differential between the cooler inlet and outlet
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单选题On what do you depend having the air cooler of main engine chemically washed?()A
increased air pressure differenced before and aft air coolerB
reduced exhaust temperature in all cylindersC
reduced temperature difference between water inlet and outletD
both A and C
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单选题An electric heater built into some smaller diesel engines is used to ().A
raise lube oil viscosity for easier starting in cold weatherB
increase air inlet temperatureC
increase compression ratioD
increase jacket water temperature for easier starting in cold weather
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