31. The Scott-Russell mechanism consists of
(a) sliding and turning pairs
(b) sliding and rotary pairs
(c) turning and rotary pairs
(d) sliding pairs only
(e) turning pairs only.
Ans: a
32. Davis steering gear consists of
(a) sliding pairs
(b) turning pairs
(c) rolling pairs
(d) higher pairs
(e) lower pairs.
Ans: a
33. Ackermann steering gear consists of
(a) sliding pairs
(b) turning pairs
(c) rolling pairs
(d) higher pairs
(e) lower pairs.
Ans: b
34. A completely constrained motion can be transmitted with .
(a) 1 link with pin joints
(b) 2 links with pin joints
(c) 3 links with pin joints
(d) 4 links with pin joints
(e) all of the above.
Ans: d
36. Oldham's coupling is the
(a) second inversion of double slider crank chain
(b) third inversion of double slider crank chain
(c) second inversion of single slider crank chain
(d) third inversion of slider crank chain
(e) fourth inversion of double slider crank chain.
Ans: b
37. Sense of tangential acceleration of a link
(a) is same as that of velocity
(b) is opposite to that of velocity
(c) could be either same or opposite to velocity
(d) is perpendicular to that of velocity
(e) none of the above.
Ans: c
38. A mechanism is an assemblage of
(a) two links
(b) three links
(c) four links or more than four links
(d) all of the above
(e) none of the above.
Ans: c
39. The number of links in pantograph mechanism is equal to
(a) 2
(b) 3
(c) 4
(d) 5
(e) 6.
Ans: c
40. Elements of pairs held together mechanically is known as
(a) closed pair
(b) open pair
(c) mechanical pair
(d) rolling pair
(e) none of the above.
Ans: a
41. Shaft revolving in a bearing is the following type of pair
(a) lower pair
(b) higher pair
(c) spherical pair,
(d) cylindrical pair
(e) bearing pair.
Ans: a
42. Rectangular bar in a rectangular hole is the following type of pair
(a) completely constrained motion
(b) partially constrained motion
(c) incompletely constrained motion
(d) freely constrained motion
(e) none of the above.
Ans: a
43. A foot step bearing and rotor of a vertical turbine form examples of
(a) incompletely constrained motion
(b) partially constrained motion
(c) completely constrained motion
(d) successfully constrained motion
(e) none of the above.
Ans: b
44. A slider crank chain consists of following numbers of turning and sliding pairs
(a) I, 3
(b) 2, 2
(c) 3, 1
(d) 4, 0
(e) 0, 4.
Ans: c
45. Relationship between the number of links (L) and number of pairs (P) is
(a) P = 2L-4
(b) P = 2L + 4
(c) P = 2L+2
(d) P = 2L-2
(e) P = L-4.
Ans: c
Read More Questions:
Theory of Machines - Mechanical Engineering Part1
Theory of Machines - Mechanical Engineering Part2
(a) sliding and turning pairs
(b) sliding and rotary pairs
(c) turning and rotary pairs
(d) sliding pairs only
(e) turning pairs only.
Ans: a
32. Davis steering gear consists of
(a) sliding pairs
(b) turning pairs
(c) rolling pairs
(d) higher pairs
(e) lower pairs.
Ans: a
33. Ackermann steering gear consists of
(a) sliding pairs
(b) turning pairs
(c) rolling pairs
(d) higher pairs
(e) lower pairs.
Ans: b
34. A completely constrained motion can be transmitted with .
(a) 1 link with pin joints
(b) 2 links with pin joints
(c) 3 links with pin joints
(d) 4 links with pin joints
(e) all of the above.
Ans: d
36. Oldham's coupling is the
(a) second inversion of double slider crank chain
(b) third inversion of double slider crank chain
(c) second inversion of single slider crank chain
(d) third inversion of slider crank chain
(e) fourth inversion of double slider crank chain.
Ans: b
37. Sense of tangential acceleration of a link
(a) is same as that of velocity
(b) is opposite to that of velocity
(c) could be either same or opposite to velocity
(d) is perpendicular to that of velocity
(e) none of the above.
Ans: c
38. A mechanism is an assemblage of
(a) two links
(b) three links
(c) four links or more than four links
(d) all of the above
(e) none of the above.
Ans: c
39. The number of links in pantograph mechanism is equal to
(a) 2
(b) 3
(c) 4
(d) 5
(e) 6.
Ans: c
40. Elements of pairs held together mechanically is known as
(a) closed pair
(b) open pair
(c) mechanical pair
(d) rolling pair
(e) none of the above.
Ans: a
41. Shaft revolving in a bearing is the following type of pair
(a) lower pair
(b) higher pair
(c) spherical pair,
(d) cylindrical pair
(e) bearing pair.
Ans: a
42. Rectangular bar in a rectangular hole is the following type of pair
(a) completely constrained motion
(b) partially constrained motion
(c) incompletely constrained motion
(d) freely constrained motion
(e) none of the above.
Ans: a
43. A foot step bearing and rotor of a vertical turbine form examples of
(a) incompletely constrained motion
(b) partially constrained motion
(c) completely constrained motion
(d) successfully constrained motion
(e) none of the above.
Ans: b
44. A slider crank chain consists of following numbers of turning and sliding pairs
(a) I, 3
(b) 2, 2
(c) 3, 1
(d) 4, 0
(e) 0, 4.
Ans: c
45. Relationship between the number of links (L) and number of pairs (P) is
(a) P = 2L-4
(b) P = 2L + 4
(c) P = 2L+2
(d) P = 2L-2
(e) P = L-4.
Ans: c
Read More Questions:
Theory of Machines - Mechanical Engineering Part1
Theory of Machines - Mechanical Engineering Part2
No comments:
Post a Comment