16. The example of spherical pair is
(a) bolt andnut
(b) lead screw of a lathe
(c) ball and socket joint
(d) ball bearing and roller bearing
(e) none qf the above.
Ans: c
17. Cross head and guides form a
(a) lower pair
(b) higher pair
(c) turning pair
(d) rolling pair
(e) sliding pair.
Ans: e
19. A circular bar moving in a round hole is an example of
(a) incompletely constrained motion
(b) partially constrained motion
(c) completely constrained motion
(d) successfully constrained motion
(e) none of the above
Ans: a
20. If some links are connected such that motion between them can take place in more than one direction, it is called
(a) incompletely constrained motion
(b) partially constrained motion
(c) completely constrained motion
(d) successfully constrained motion
(e) none of the above.
Ans: a
21. If there are L number of links in a mechanism then number of possible inversions is equal to
(a) L + 1
(b) L - 1
(c) L
(d) L + 2
(e) L - 2.
Ans: c
22. Kinematic pairs are those which have two elements that
(a) have line contact
(b) have surface contact
(c) permit relative motion
(d) are held together
(e) have dynamic forces.
Ans: c
24. The lower pair is a
(a) open pair
(b) closed pair
(c) sliding pair
(d) point contact pair
(e) does not exist.
Ans: b
25. Automobile steering gear is an example of
(a) higher pair
(b) sliding pair
(c) turning pair
(d) rotary pair
(e) lower pair.
Ans: e
26. In higher pair, the relative motion is
(a) purely turning
(b) purely sliding
(c) purely rotary
(d) purely surface contact
(e) combination of sliding and turning.
Ans: e
27. Which of the following has sliding motion
(a) crank
(b) connecting rod
(c) crank pin
(d) cross-head
(e) cross head guide.
Ans: d
28. Theji example of higher pair is
(a) belt, rope and chain drives
(b) gears, cams
(c) ball and roller bearings
(d) all of the above
(e) none of the above.
Ans: d
29. Which of the following mechanism is obtained from lower pair
(a) gyroscope
(b) pantograph
(c) valve and valve gears
(d) generated straight line motions
(e) all of the above.
Ans: e
30. Which of the following would constitute a link
(a) piston, piston rings and gudgeon pin
(b) piston, and piston rod
(c) piston rod and cross head
(d) piston, crank pin and crank shaft
(e) piston, piston-rod and cross head.
Ans: e
Read More Questions:
Theory of Machines - Mechanical Engineering Part1
Theory of Machines - Mechanical Engineering Part2
(a) bolt andnut
(b) lead screw of a lathe
(c) ball and socket joint
(d) ball bearing and roller bearing
(e) none qf the above.
Ans: c
17. Cross head and guides form a
(a) lower pair
(b) higher pair
(c) turning pair
(d) rolling pair
(e) sliding pair.
Ans: e
19. A circular bar moving in a round hole is an example of
(a) incompletely constrained motion
(b) partially constrained motion
(c) completely constrained motion
(d) successfully constrained motion
(e) none of the above
Ans: a
20. If some links are connected such that motion between them can take place in more than one direction, it is called
(a) incompletely constrained motion
(b) partially constrained motion
(c) completely constrained motion
(d) successfully constrained motion
(e) none of the above.
Ans: a
21. If there are L number of links in a mechanism then number of possible inversions is equal to
(a) L + 1
(b) L - 1
(c) L
(d) L + 2
(e) L - 2.
Ans: c
22. Kinematic pairs are those which have two elements that
(a) have line contact
(b) have surface contact
(c) permit relative motion
(d) are held together
(e) have dynamic forces.
Ans: c
24. The lower pair is a
(a) open pair
(b) closed pair
(c) sliding pair
(d) point contact pair
(e) does not exist.
Ans: b
25. Automobile steering gear is an example of
(a) higher pair
(b) sliding pair
(c) turning pair
(d) rotary pair
(e) lower pair.
Ans: e
26. In higher pair, the relative motion is
(a) purely turning
(b) purely sliding
(c) purely rotary
(d) purely surface contact
(e) combination of sliding and turning.
Ans: e
27. Which of the following has sliding motion
(a) crank
(b) connecting rod
(c) crank pin
(d) cross-head
(e) cross head guide.
Ans: d
28. Theji example of higher pair is
(a) belt, rope and chain drives
(b) gears, cams
(c) ball and roller bearings
(d) all of the above
(e) none of the above.
Ans: d
29. Which of the following mechanism is obtained from lower pair
(a) gyroscope
(b) pantograph
(c) valve and valve gears
(d) generated straight line motions
(e) all of the above.
Ans: e
30. Which of the following would constitute a link
(a) piston, piston rings and gudgeon pin
(b) piston, and piston rod
(c) piston rod and cross head
(d) piston, crank pin and crank shaft
(e) piston, piston-rod and cross head.
Ans: e
Read More Questions:
Theory of Machines - Mechanical Engineering Part1
Theory of Machines - Mechanical Engineering Part2
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