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.Management Sciences
Category: Mechanical Engineering Mcqs
The output of a diesel engine can be increased without increasing the engine revolution or size in following way_________________?
A. feeding more fuel
B. increasing flywheel size
C. heating incoming air
D. scavenging
E. supercharging
For a kinematic chain to be considered as mechanism___________________?
A. two links should be fixed
B. one link should be fixed
C. none of the links should be fixed
D. there is no such criterion
E. none of the above
Inertia force acts___________________?
A. perpendicular to the accel< force
B. along the direction of accel* force
C. opposite to the direction of ace ing force
D. in any direction w.r.t. accel* force depending on the magnit two
E. none of the above
Which of the following is used for bearing liner_______________?
A. gun metal
B. bronze
C. bell metal
D. babbit metal
E. brass
Form coefficient of spring is _____________________?
A. ratio of coil diameter to wire diameter
B. load required to produce unit deflection
C. its capability of storing energy
D. concerned With strength of wire of spring
E. nothing
If threads on a bolt are left hand, threads on nut will be_____________________?
A. right hand with same pitch
B. left hand with same pitch
C. could be left or right hand
D. right hand with fine pitch
E. left hand with fine pitch
The vloumetric efficiency of compressor with increase in compression ratio will ___________________?
A. increase
B. decrease
C. remain same
D. may increase/decrease depending on clearance volume
E. none of the above
Which of the following has highest specific strength of all structural materials__________________?
A. magnesium alloys
B. titanium alloys
C. chromium alloys
D. magnetic steel alloys
E. none of the above
The Bifilar suspension method is used to determine__________________?
A. natural frequency of vibration
B. position of balancing weights
C. moment of inertia
D. centripetal acceleration’
E. angular acceleration of a body
Pick up wrong statement about desired properties of a good fuel__________________?
A. high calorific value
B. produce minimum smoke and gases
C. ease in storing
D. high ignition point
E. ecomomical
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