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Engineering
Mechanical
ME Set-1
Theory of Machines
114

Theory of Machines MCQ with Answers

114) The time taken by a particle for one complete oscillationis known as periodic time.

Agree

Disagree

Answer is:

Agree

Theory of Machines MCQ with Answers

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Related Theory of Machines MCQ with Answers

115) In a cam drive with uniform velocity follower, the sharp corners of the displacement diagram are rounded off at the beginning and at the end of each stroke. This is done

because of difficulty in manufacturing cam profile

because of loose contact of follower with cam surface

in order to have acceleration in beginning and retardation at the end of stroke within the finite limits

because the uniform velocity motion is a partial parabolic motion

Answer is:

in order to have acceleration in beginning and retardation at the end of stroke within the finite limits

116) The contact ratio for gears is

zero

less than one

greater than one

infinity

Answer is:

greater than one

117) In a steam engine, the earlier cut-off with a simple slide valve may be obtained by increasing the angle of advance of the eccentric but reducing the throw of the eccentric and keeping the steam lap and exhaust lap constant. This method will cause withdraw

Agree

Disagree

Answer is:

Agree

118) A governor is said to be stable, if the

radius of rotation of balls increases as the equilibrium speed decreases

radius of rotation of balls decreases as the equilibrium speed decreases

radius of rotation of balls increases as the equilibrium speed increases

radius of rotation of balls decreases as the equilibrium speed increases

Answer is:

radius of rotation of balls increases as the equilibrium speed increases

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