MCQs Mechanical Engineering

1. Coriolis component of acceleration exists whenever a point ,moves along a path that has
(a) Tangential acceleration
(b) Centripetal acceleration
© Liner motion 
(d)Rotational motion
Ans. D
2. When an object simultaneously rotates about a point and moves relative to that point, an is called ……..acceleration
(a) Doppler
(b) Coriolis
(c ) Sequential 
(d)Tangential 
Ans. B
3. Determine the number of links when the number of instantaneous centres are 10.
(a) 4
(b)5
(c )6
(d) Data Insufficient 
Ans. B
4. A body is Simple harmonic Motion will have maximum velocity when its amplitude is
(a) maximum
(b) negative maximum
(c) zero
(d) average
Ans. C
5. The crank radius of a slider crank mechanism is 10cm. If the crank radius is increased to 12 cm, the stroke length will increase by
(a)20 %
(b) 12 %
(c )5 %
(d) 10%
Ans. A
6. Degree of freedom of a slider crank mechanism is
(a) 2
(b) 3
(c ) 0
(d)1
Ans. D
7. In a slotted lever quick return mechanism the number of insatntneous  centre of rotation is
(a) 6
(b)10
(c) 12
(d) 15
Ans. A
8. A body is having a simple harmonic motion Product of its frequency and time period is equal to
(a) Zero
(b) One 
(c )Infinity 
(d)0.5
Ans. B
9. In case of a flywheel , maximum fluctuation in energy is
(a) Sum of maximum and minimum energies
(b) Difference of  maximum and minimum energies 
(c ) Ratio of maximum and minimum energies
(d) Ratio of minimum and maximum energies 
Ans. B
10. Which one of the following does not require a flywheel ?
(b) Steam engine
(b)Engine driven press
(c) CI engine 
(d) Gas turbine
Ans. D
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