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Mechanical Engineering Mcqs 1919 MCQs [All-Courses]

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Mechanical Engineering MCQs prepared for job test and interview preparation, especially for fresh graduates, students, and candidates appearing in competitive exams. These multiple-choice questions cover key topics such as Machine Design, Theory of Machines, Hydraulic Machines, and other important mechanical engineering concepts.

All Topics  1919

The number of flue tubes in Lancashire boiler is_________________?
A zero
B one
C two
D four
Correct Answer: two
Which of the following is a water tube boiler_________________?
A locomotive boiler
B Cochran boiler
C Cornish boiler
D Babcock and Wilcox boiler
Correct Answer: Babcock and Wilcox boiler
A packaged boiler is one in which various parts like firing equipment, fans, feed pumps and automatic controls are________________?
A supplied by same manufacturer loose and assembled at site
B supplied mounted on a single base
C purchased from several parties and packed together at site
D packaged boiler does not exist
Correct Answer: supplied mounted on a single base
Which of the following coals has the highest calorific value_________________?
A anthracite coal
B bituminous coal
C lignite
D peat
Correct Answer: anthracite coal
The crown of the fire box is made hemispherical in order to___________________?
A give maximum space
B give maximum strength
C withstand pressure inside boiler ,
D resist intense heat in fire box
Correct Answer: resist intense heat in fire box
The fire tubes in, a Coarran and Scotish marine boiler are_________________?
A horizontal
B vertical
C inclined
D both horizontal and vertical
Correct Answer: horizontal
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
Correct Answer: separate steam from water
The function of injector used in small steam plants is to________________?
A create vacuum in furnace
B create vacuum at turbine exhaust
C pump feed water
D dose chemicals in feed water
Correct Answer: pump feed water
The diameter of tubes for natural circulation boiler as compared to controlled circulation boilers is___________________?
A more
B less
C same
D could be more or less depending on other factors
Correct Answer: more
The water tubes in a babcock and wilcox boiler are__________________?
A horizontal
B vertical
C inclined
D horizontal and inclined
Correct Answer: inclined
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