Steam Boilers, Engines, Nozzles And Turbines MCQ Questions & Answers

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Learn Steam Boilers, Engines, Nozzles And Turbines MCQ questions & answers are available for a Mechanical Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Steam Boilers, Engines, Nozzles And Turbines MCQ question is the important chapter for a Mechanical Engineering and GATE students. Page-2 section-5

Each section contains 100 MCQs on Steam Boilers, Engines, Nozzles and Turbines .

Calorific value of coal is of the order of

A) 200 - 400 kcal/ kg B) 800 - 1200 kcal/ kg C) 2000 - 4000 kcal/ kg D) 5000 - 8000 kcal/ kg

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

The diameter of cylindrical shell of the Lancashire boiler is of the order of

A) 1 to 1.25 m B) 1 to 1.75 m C) 2 to 4 m D) 1.75 to 2.75 m

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

The coal requirement per kW hour generation in the thermal power plant is of the order of

A) 0.1 to 0.2 kg B) 0.2 to 0.4 kg C) 0.6 to 0.8 kg D) 1.0 to 1.5 kg

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Tertiary air is the air used to

A) Provide air around burners for obtaining optimum combustion B) Transport and dry the coal C) Cool the scanners D) Convert CO (formed in lower zone of furnace) into CO₂ at higher zone

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Primary air is the air used to

A) Provide air around burners for obtaining optimum combustion B) Transport and dry the coal C) Convert CO (formed in lower zone of furnace) into CO₂ at higher zone D) Air delivered by forced draft fan

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

Secondary air is the air used to

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

The steam enters the nozzle at a

A) High pressure and a low velocity B) High pressure and a high velocity C) Low pressure and a low velocity D) Low pressure and a high velocity

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

The steam leaves the nozzle at a

A) High pressure and a low velocity B) High pressure and a high velocity C) Low pressure and a low velocity D) Low pressure and a high velocity

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

The critical pressure at which latent heat of vaporization is zero is

A) 225.65 kgf/cm² B) 273 kgf/cm² C) 100 kgf/cm² D) 1 kgf/cm²

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

In a nozzle, the effect of super-saturation is to

A) Decrease dryness fraction of steam B) Decrease specific volume of steam C) Increase the entropy D) Increase the heat drop

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

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Steam Boilers, Engines, Nozzles And Turbines MCQ Questions & Answers | Mechanical Engineering