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-8 section-3

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

Maximum energy loss in a boiler occurs due to

A) Unburnt carbon in ash B) Incomplete combustion C) Ash content D) Flue gases

Discuss

Answer & Solution

Answer: Option D

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

The impulse turbine rotor efficiency will have a maximum value of 0.5 cos² α, where α is the nozzle exit flow angle, if the

A) Blades are equiangular B) Blade velocity coefficient is unity C) Blades are equiangular and frictionless D) Blade solidity is 0.65

Discuss

Answer & Solution

Answer: Option C

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

Which of the following substance will have same percentage in both proximate and ultimate analysis?

A) Ash B) Volatile matter C) Moisture D) Hydrogen

Discuss

Answer & Solution

Answer: Option A

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

An economiser is generally placed between

A) Last superheater or reheater and air preheater B) Induced draft fan and forced draft fan C) Air preheater and chimney D) None of the above

Discuss

Answer & Solution

Answer: Option A

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

All steam engines work on

A) Zeroth law of thermodynamics B) First law of thermodynamics C) Second law of thermodynamics D) None of these

Discuss

Answer & Solution

Answer: Option C

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

The basic purpose of drum in boiler is to

A) Serve as storage of steam B) Serve as storage of feed water for water wall C) Remove salts from water D) Separate steam from water

Discuss

Answer & Solution

Answer: Option D

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

A steam nozzle converts

A) Heat energy of steam into kinetic energy B) Kinetic energy into heat energy of steam C) Heat energy of steam into potential energy D) Potential energy into heat energy of steam

Discuss

Answer & Solution

Answer: Option A

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

The fire tubes in a Scotch marine boiler are

A) Horizontal B) Vertical C) Inclined D) None of these

Discuss

Answer & Solution

Answer: Option A

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

The fire tubes in, a Coarran and Scottish marine boiler are

A) Horizontal B) Vertical C) Inclined D) Both horizontal and vertical

Discuss

Answer & Solution

Answer: Option A

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

A safety valve mainly used with locomotive and marine boilers is

A) Lever safety valve B) Dead weight safety valve C) High steam and low water safety valve D) Spring loaded safety valve

Discuss

Answer & Solution

Answer: Option D

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