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.Management Sciences
Category: Mechanical Engineering Mcqs
“Open pairs are those which have__________________?
A. point or line contact between the two elements when in motion
B. surface contact between the two ele-ments when in motion
C. elements of pairs not held together mechanically
D. two elements that permit relative motion
E. none of the above
The capacity of induced draft fan compared to forced draft fan in a boiler is__________________?
A. same
B. more
C. less
D. less or more depending on size of boiler
E. unpredictable
The maximum value of the pressure angle in case of cam is kept as________________?
A. 10°
B. 14°
C. 20°
D. 30°
E. 25°.
The angle which an inclined plane makes with the horizontal when a body placed on it is about to move down is known as angle of __________________?
A. friction
B. limiting friction
C. repose
D. kinematic friction
E. static friction
Which is not correct statement about pulverised fuel firing ?
A. high burning rate is possible
B. heat release can be easily controlled
C. fuel burns economically
D. it is the best technique for burning high ash content fuel having low fusion ash
E. separate mills are required to powder the coal
Property of a fluid by which molecules of different kinds of fluids are attracted to each other is called________________?
A. adhesion
B. cohesion
C. viscosity
D. compressibility
E. surface tension
A file removes the metal during___________________?
A. both forward and return strokes
B. forward stroke
C. return stroke
D. none of these
The following type of nut is used with alien bolt____________________?
A. alien nut
B. hexagonal nut
C. slotted nut
D. castle nut
E. any one of the above
Cochran boiler is a__________________?
A. horizontal fire-tube boiler
B. horizontal water-tube boiler
C. veritcal water-tube boiler
D. vertical fire tube boiler
E. forced circulating boiler
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