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

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

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-7 section-5

Cut-off governing as compared to throttle governing is

A) Less efficient and less economical B) Less efficient and more economical C) More efficient and less economical D) More efficient and more economical

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Answer & Solution

Answer: Option D

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A boiler in India should conform to safety regulations of

A) DIN B) BS C) ASTM D) IBR

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Answer: Option D

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The ratio of the energy required to produce the artificial draught (expressed in meters head or J/kg of flue gas) to the mechanical equivalent of extra heat carried away per kg of flue gases due to natural draught, is known as

A) Efficiency of the boiler B) Efficiency of the chimney C) Efficiency of the fan D) Power of the boiler

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Answer: Option B

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Which of the following boiler works on a forced circulation of water?

A) Lamont boiler B) Benson boiler C) Loeffler boiler D) All of these

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Answer: Option D

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In an ideal impulse turbine, the

A) Absolute velocity at the inlet of moving blade is equal to that at the outlet B) Relative velocity at the inlet of the moving blade is equal to that at the outlet C) Axial velocity at inlet is equal to that at the outlet D) Whirl velocity at inlet is equal to that at the outlet

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Answer: Option B

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Willian’s line follows the law (where b = A constant representing the shape of the Willian’s line, a = Another constant i.e. no load consumption per hour, I.P. = Indicated Power and m = Steam consumption per hour)

A) I.P. = a × m + b B) m = a + b × I.P. C) I.P. = b × m + a D) $${\text{m}} = \frac{{\text{b}}}{{{\text{I}}{\text{.P}}.}} - {\text{a}}$$

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Answer: Option B

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Which of the following statement is correct for a compound steam engine?

A) The cost of the engine, for the same power and economy, is more than that of a simple steam engine B) The forces in the working parts are increased as the forces are distributed over more parts C) The ratio of expansion is reduced, thus reducing the length of stroke D) The temperature range per cylinder is increased, with corresponding increase in condensation

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Answer: Option C

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The turbine blades are

A) Straight B) Circular C) Curved D) None of these

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Answer: Option C

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In locomotive boiler, maximum steam pressure is limited to

A) 1 kg/cm² B) 5 kg/cm² C) 10 kg/cm² D) 18 kg/cm²

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Answer: Option D

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Bomb calorimeter is used to determine

A) Higher calorific value at constant volume B) Lower calorific value at constant volume C) Higher calorific value at constant pressure D) Lower calorific value at constant pressure

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Answer: Option A

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