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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

Locomotive type’ boiler is__________________?
A horizontal multitubular water tube boiler
B water wall enclosed furnace type
C vertical tubular fire tube type
D horizontal multi-tubular fire tube type
Correct Answer: horizontal multi-tubular fire tube type
Fire tube boilers are those in which__________________?
A flue gases pass through tubes and water around it
B water passes through the tubes and flue gases around it
C forced circulation takes place
D tubes are laid vertically
Correct Answer: flue gases pass through tubes and water around it
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
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