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Mechanical Engineering - Theory of machines

Exercise : Theory of machines - Section 3
31.
When a rigid body is suspended vertically and it oscillates with a small amplitude under the action of the force of gravity, the body is known as
simple pendulum
compound pendulum
torsional pendulum
second's pendulum
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
Longitudinal vibrations are said to occur when the particles of a body moves
perpendicular to its axis
parallel to its axis
in a circle about its axis
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.
The velocity of the reciprocating roller follower when it has contact with the straight flanks of the tangent cam, is given by (where ω = Angular velocity of the cam shaft)
ω(r1 - r2)sin θ
ω(r1 + r2)sinθ sec2θ
ω(r1 - r2)cos θ
ω(r1 + r2)cos θ cosec2 θ
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.
The sensitiveness of the governor __________ as the speed range decreases.
remains unaffected
decreases
increases
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
In Meyer's expansion valve, the expansion valve is driven by an eccentric having an angle of advance from
50° - 60°
60° - 70°
70° - 80°
80° - 90°
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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