Q. The motion of a shaft in a circular hole is an example of
✅ Correct Answer: (B)
Incompletely constrained motion
Theory Of Machine MCQs | Page - 6
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Q. In a kinematic chain, a quaternary joint is equivalent to
✅ Correct Answer: (C)
Three binary joints
Q. The direction of Coriolis component of acceleration is the direction
✅ Correct Answer: (A)
Of relative velocity vector for the two coincident points rotated by 90° in the direction of the angular velocity of the rotation of the link
Q. A Hartnell governor has its controlling force (Fc) given by Fc = ar + b, where r is the radius of rotation and a and b are constants. The governor becomes isochronous when
✅ Correct Answer: (A)
a is +ve and b = 0
Q. A chain comprises of 5 links having 5 joints. Is it kinematic chain?
✅ Correct Answer: (B)
No
Q. A disturbing mass m1 attached to the rotating shaft may be balanced by a single mass m2 attached in the same plane of rotation as that of m1, such that (where r1 and r2 are the radii of rotation of m1 and m2 respectively)
✅ Correct Answer: (B)
m1r1 = m2r2
Q. The maximum fluctuation of energy is the
✅ Correct Answer: (A)
Difference between the maximum and minimum energies
Q. The Kutzbach criterion for determining the number of degrees of freedom (n) is (where $$l$$ = number of links, j = number of joints and h = number of higher pairs)
✅ Correct Answer: (A)
n = 3(
l
- 1) - 2j - h
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