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单选题 The( ) is fitted in the main steam supply line and is usually of the non-return type
学科：轮机英语
时间：2023-09-23 07:54:59
题目1单选题
In a( )boiler the hot gases from the furnace pass through the tubes while the water is onthe outsideA. water-tubeB. fire-tubeC. exhaust gasD. composite
题目2单选题
In motor ship,( )is often used to recover some of the heat carried in the exhaust gases from the main engineA. a diesel oil heaterB. a waste heat boilerC. a fresh water generatorD. a donkey boiler
题目3单选题
The primary function of a waste heat boiler is to( )A. reduce engine exhaust noiseB. reduce engine back pressureC. recover heat which otherwise would be lostD. increase turbocharger efficiency
题目4单选题
One function of a waste heat boiler is to( )A. reduce engine exhaust noiseB. reduce engine back pressureC. increase engine cycle efficiencyD. increase turbocharger efficiency
题目5单选题
A waste heat boiler is installed on some diesel propelled vessels to( )A. provide steam for emergency propulsionB. provide steam for the turbo-generatorC. heat the waste water tanksD. steam for warming engines
题目6单选题
The maximum pressure developed by a waste heat boiler is determined by the main engine exhaust( )A. gas compositionB. gas temperatureC. pressureD. timing
题目7单选题
Which of the following statements concerning fire-tube boilers is correct?( )A. Combustion gases flow through the tubesB. Flames impinge on the tubesC. Combustion occurs in the tubesD. Water flows through the tubes
题目8单选题
Diesel engine waste heat boiler construction is usually of the fire-tube or( )A. cyclone furnace boiler typeB. dry back boiler typeC. water-tube typeD. critical circulation boiler type
题目9单选题
The amount of heat released by steam when it changes to water at the same temperature is called ( )A. latent heat of condensationB. latent heat of vaporizationC. latent heat of saturationD. sensible heat of condensation
题目10单选题
WHR stands for( )A. Water Head RegisterB. Water Heater Re-circulatingC. Waste Heat RecoveryD. Waste Handle Reference