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Mechanical Engineering - Theory of machines

Exercise : Theory of machines - Section 10
26.
A point B on a rigid link AB moves with respect to A with angular velocity ω rad/s. The angular acceleration of the link AB is (where and = Radial and tangential components of the acceleration of B with respect to A)
vBA x AB
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
In order to give a complete secondary balance of a multi-cylinder in-line engine,
the algebraic sum of the secondary forces must be equal to zero
the algebraic sum of the couples about any point in the plane of the secondary forces must be equal to zero
both (a) and (b)
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
A point B on a rigid link AB moves with respect to A with angular velocity ω rad/s. The total acceleration of B with respect to A will be equal to
vector sum of radial component and coriolis component
vector sum of tangential component and coriolis component
vector sum of radial component and tangential component
vector difference of radial component and tangential component
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
A spring controlled governor is said to be stable if the controlling force line when produced intersects the Y-axis
at the origin
below the origin
above the origin
any one of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
When the radius of rotation of balls __________ as the equilibrium speed increases, the governor is said to be unstable.
remains constant
decreases
increases
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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