What is necessary to ensure products of combustion flow into the chimney?(a) Air speed(b) Draft in the chimney(c) Differential gas pressure(d) Swirl flow of exhaust airI have been asked this question during an interview.My doubt stems from Principle of Automatic Control of Combustion in division Steam Power Plant of Energy Engineering

What is necessary to ensure products of combustion flow into the chimn

1.	What is necessary to ensure products of combustion flow into the chimney?(a) Air speed(b) Draft in the chimney(c) Differential gas pressure(d) Swirl flow of exhaust airI have been asked this question during an interview.My doubt stems from Principle of Automatic Control of Combustion in division Steam Power Plant of Energy Engineering
Answer» RIGHT choice is (c) Differential gas pressure To elaborate: In order to ensure products of COMBUSTION flow into the chimney at proper speed, it is essential to regulate differential gas pressure in the furnace. In case of automatic control, the CONTROLLING devices operate based on the CHANGE in pressure of STEAM.

Discussion

No Comment Found

Related InterviewSolutions

What is the main disadvantage of the nuclear weigher?(a) They are not mobile(b) Accuracy depends on speed of material(c) They are big in size, requires large amount of space(d) Consumes large amount of electricityThe question was asked in an internship interview.This is a very interesting question from Coal Weighing Methods in chapter Steam Power Plant of Energy Engineering
What is the purpose of bucket elevators in coal handling?(a) Used to move coal horizontally(b) Used to lift coal vertically(c) Used to separate the crushed coal and pulverized coal(d) Used to pour the coal vertically at right angles into furnaceThe question was asked in quiz.The origin of the question is Stages of Coal Handling topic in division Steam Power Plant of Energy Engineering
How the oxidation of coal is eliminated?(a) By exposing it to the sunlight(b) By turning the entire coal heap upside down periodically(c) By circulating air uniformly(d) By burning coal at very high temperaturesThe question was asked during a job interview.My question is from Fuel Handling System, Storage of Coal in portion Steam Power Plant of Energy Engineering
How does atomization of fuel occur in an atomizing burner of oil burner?(a) High pressure movement of fuels(b) By spraying the fuel at high pressure(c) By impinging two streams of fuel(d) By spark ignition methodThe question was asked in an interview for job.My question is from Fuel Burning Equipments in section Steam Power Plant of Energy Engineering
How is pulverization done in bowl mill?(a) By bowl and steel balls(b) By bowl and roller(c) By bowl and impact hammer(d) By bowl and batanThis question was addressed to me in final exam.My question is based upon Pulverised Mills in portion Steam Power Plant of Energy Engineering
What decides the efficiency of pulverized fuel firing system?(a) Turbulence of air(b) Size of coal powder(c) Primary air(d) FeederThe question was asked in an internship interview.My doubt stems from Pulverised Fuel Burning topic in division Steam Power Plant of Energy Engineering
Usage of highly preheated secondary air in pulverized fuel firing helps in ______(a) Heats fuel at pace(b) Takes less time to finish the process(c) Rapid flame propagation(d) Reduces the troubles and problems caused in the systemThe question was asked in exam.Question is taken from Pulverised Fuel Burning in division Steam Power Plant of Energy Engineering
Which device is used for feeding the fuel automatically to boiler or furnace in power plants?(a) Relay(b) Mechanical stoker(c) Master controller(d) Feed pumpThe question was posed to me during an interview.My question comes from Fuel Burning in section Steam Power Plant of Energy Engineering
Which type of furnace cannot be used in the modern era plants?(a) Hand fired furnace(b) Electric arc furnace(c) Solar furnace(d) Central warm air furnaceI got this question in a national level competition.My query is from Fuel Burning in division Steam Power Plant of Energy Engineering
How much pounds of CO2 is emitted per million BTU (British thermal unit- common thermal unit) when coal is burnt?(a) 139(b) 117(c) 157(d) 205This question was addressed to me during an interview.I'm obligated to ask this question of Fuel Burning in section Steam Power Plant of Energy Engineering

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment