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.Management Sciences
Category: Mechanical Engineering Mcqs
Product layout is employed for____________________?
A. batch production
B. continuous production
C. effective utilization of machine
D. all of the above
E. none of the above
Percentage reduction of area in performing tensile test on cast iron may be of the order of__________________?
A. 50%
B. 25%
C. 0%
D. 15%
E. 60%.
A rocket engine for the combustion of its fuel_____________________?
A. carries its own oxygen
B. uses surrounding air
C. uses compressed atmospheric air
D. does not require oxygen
E. depends on electrical energy supplied by solar cells
The ratio of the increase in pressure in rotor blades to total increase in pressure in the stage is called__________________?
A. pressure ratio
B. pressure coefficient
C. degree of reaction
D. slip factor
E. stage factor
For the same size and weight, a two stroke engine as compared to four stroke engine will generate power_________________?
A. about twice
B. about 0.5 times
C. nearly equal
D. about 1.7 times
E. about 5 times
For which of the following substances, the internal energy and enthalpy are the functions of temperature only____________________?
A. any gas
B. saturated steam
C. water
D. perfect gas
E. superheated steam
The number of links and instantaneous centers in a reciprocating engine mechanism are ___________________?
A. 4, 4
B. 4, 5
C. 5, 4
D. 6, 4
E. 4, 6
The vapor compression refrigerator employs the following cycle_________________?
A. Rankine
B. Carnot
C. Reversed Rankine
D. Brayton
E. Reversed Carnot
Coefficient of friction is the_________________?
A. angle between normal reaction and the resultant of normal reaction and the limiting friction
B. ratio of limiting friction and normal reaction
C. the friction force acting when the body is just about to move
D. the friction force acting when the body is in motion
E. tangent of angle of repose
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