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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-10 section-4

Each section contains 100 MCQs on Steam Boilers, Engines, Nozzles and Turbines .
91
The critical pressure ratio is given by (where p1 = Initial pressure of steam and p2 = Pressure of steam at throat or critical pressure)
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Answer & Solution
Answer: Option C
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92
The discharge is __________ at critical pressure.
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Answer: Option C
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93
Fire tube boilers are limited to a maximum working pressure of
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Answer: Option B
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94
Fire tube boilers are limited to a maximum design working pressure of
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Answer: Option C
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95
The ratio of heat utilized to produce steam and the heat liberated in furnace is known as
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Answer: Option D
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96
In order to obtain superheated steam, a superheater is added in an existing boiler. As as result, furnace vacuum will
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Answer: Option C
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97
When the speed of the engine is controlled by means of a valve in a steam pipe, which regulates the pressure of steam entering the engine, then the governing is known as
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Answer: Option A
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98
In a reaction turbine when the degree of reaction is zero, then there is
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Answer: Option A
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99
In a De-Laval nozzle expanding superheated steam from 10 bar to 0.1 bar, the pressure at the minimum cross-section (i. e. pressure at throat, p2) will be
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Answer: Option B
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100
The water tubes in a simple vertical boiler are
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Answer: Option C
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