Dynamics of Machinery (3151911) MCQs

MCQs of Turning moment diagrams and flywheel

Showing 71 to 74 out of 74 Questions
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71.

The relation between stroke punch s and radius of crank r is ______.

(a)

s=r
(b)

s=2r
(c)

s=4r
(d)

s=r/2
Answer:

Option (b)

72.

If the stroke punch is 100 mm, find the radius of the crank in mm.

(a)

200
(b)

100
(c)

50
(d)

400
Answer:

Option (c)

73.

Energy during actual punching operation is the same as the energy supplied by the motor.

(a)

True
(b)

False
Answer:

Option (b)

74.

The balancing energy required for punching is supplied by the flywheel by ________.

(a)

increase in its kinetic energy
(b)

the decrease in its kinetic energy
(c)

the decrease in its potential energy
(d)

by variation of mass
Answer:

Option (b)

Showing 71 to 74 out of 74 Questions
5 6 7 8