Theory of Machines Multiple Choice Questions
1- Motion of shaft in circular hole forms:
(A) Incompletely constrained motion
(B) completely constrained motion
(C) Successfully constrained motion
(D) None of the above
2- Shaft with taper key is an example of
(A) incompletely constrained motion
(B) completely constrained motion
(C) successfully constrained motion
(D) All of the above
3- Ackermann steering gear mechanism is inversion of:
(A) Slider crank chain
(B) Four bar chain
(C) Double slider chain
(D) Crossed slider crank chain
4- Scotch yoke mechanism is the inversion of
(A) Single slider kinematic chain
(B) Double slider kinematic chain
(C) Four bar chain
(D) None of the above
5- Inversion of a mechanism is
(A) Changing of a higher pair to lower pair
(B) Obtained by fixing different links in a kinematic chain
(C) Turning it upside down
(D) Obtained by reversing the input and output motion
6- If N kinematic links are connected at a same pin joint in a kinematic chain, the joint is equivalent of
(A) (N-1) binary joints
(B) (N-2) binary joints
(C) (2N-3) binary joints
(D) (2N-1) binary joints
7- A ball and socket joint forms ___ kinematic pair.
(A) Turning pair
(B) Screw pair
(C) Spherical pair
(D) Sliding pair
8- Unconstrained rigid link in plane has
(A) One degree of freedom
(B) Zero degree of freedom
(C) Three degree of freedom
(D) Two degree of freedom
9- The motion of a circular shaft with collars at each end rotating in a round hole constitutes between the elements of kinematic pair.
(A) Successfully constrained motion
(B) Completely constrained motion
(C) Incompletely constrained motion
(D) None of the options
10- One of the links of constrained kinematic chain is fixed, the result is ___ .
(A) Structure
(B) Frame
(C) Mechanism
(D) None of the options
11- The smallest circle drawn to the cam profile from the centre of rotation of a radial cam is called
(A) Base circle
(B) Prime circle
(C) Pitch Circle
(D) None of the options
ANSWERS:
1-(A), 2-(C), 3-(B), 4-(B), 5-(B), 6-(A), 7-(C), 8-(C), 9-(B), 10-(C), 11-(A)