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Mechanical Engineering - Theory of machines

Exercise : Theory of machines - Section 2
41.
In a shaper mechanism, the coriolis component of acceleration does not exist.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
42.
In a gear having involute teeth, the normal to the involute is a tangent to the
pitch circle
base circle
addendum circle
dedendum circle
Answer: Option
Explanation:
No answer description is available. Let's discuss.
43.
A body is said to be under forced vibrations, when
there is a reduction in amplitude after every cycle of vibration
no external force acts on a body, after giving it an initial displacement
a body vibrates under the influence of external force
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
44.
The natural frequency of free longitudinal vibrations is equal to (where m = Mass of the body, s = Stiffness of the body, and δ = Static deflection of the body)
any one of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
45.
The radius of a friction circle for a shaft rotating inside a bearing is (where r = Radius of shaft, and tan φ = Coefficient of friction between the shaft and bearing)
r sin φ
r cos φ
r tan φ
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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