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.Management Sciences
Category: Mechanical Engineering Mcqs
If a material fails below its yield point, failure would be due to___________________?
A. straining
B. fatigue
C. creep
D. sudden loading
E. impact loading
True one-dimensional flow occurs when_________________?
A. the direction and magnitude of the veiocity at all points are identical
B. the velocity of successive fluid par-ticles, at any point, is the same at suc-cessive periods of time
C. the magnitude and direction of the velocity do not change from point to point in the fluid
D. the fluid particles move in plane or parallel planes and the streamline pat-terns are identical in each plane
E. velocity, depth, pressure etc. change from point to point in the fluid flow
Spring index is___________________?
A. ratio of coil diameter to wire diameter
B. load required to produce unit deflection
C. its capability of storing energy
D. indication of quality of spring
E. nothing
To avoid vaporisation in the pipe line, the pipe line over the ridge is laid such that it is not more than____________________?
A. 2.4 m above the hydraulic gradient
B. 6.4 m above the hydraulic gradient
C. 10.0 m above the hydraulic gradient
D. 5.0 above the hydraulic gradient
E. none of the above
The moisture in a refrigerant is removed by___________________?
A. evaporator
B. safety relief valve
C. dehumidifier
D. driers
E. expansion valve
Reflector in nuclear plants is used to________________?
A. return the neutrons back into the core
B. shield the radioactivity completely
C. check polllution
D. conserve energy
E. is not used
It is not possible to use closed gas turbine cycle in aeronautical engines because_________________ ?
A. it is inefficient
B. it is bulky
C. it requires cooling water for its operation
D. non of theses
In V-belt drive, belt touches______________?
A. at bottom
B. at sides only
C. both at bottom and sides
D. could touch anywhere
E. none of the above
Slack of various events on the critical path in PERT/CPM chart___________________?
A. increases continuously
B. decreases continuously
C. remains constant
D. may increase or decrease depending on various factors
E. unpredictable
The Scott-Russell mechanism consists of_________________?
A. sliding and turning pairs
B. sliding and rotary pairs
C. turning and rotary pairs
D. sliding pairs only
E. turning pairs only
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