91. A cam mechanism imparts following motion
(a) rotating
(b) oscillating
(c) reciprocating
(d) all of the above
(e) none of the above.
Ans: d
92. A cam with a roller follower would con statute following type of pair
(a) lower pair
(b) higher pair
(c) open pair
(d) close pair
(e) cam pair.
Ans: b
93. The approximate straight line mechanism is a
(a) four bar linkage
(b) 6 bar linkage
(c) 8 bar linkage
(d) 3 bar linkage
(e) 5 bar linkage.
Ans: a
94. Open pairs are those which have
(a) point or line contact between the two elements when in motion
(b) surface contact between the two elements when in motion
(c) elements of pairs not held together mechanically
(d) two elements that permit relative motion
(e) none of the above.
Ans: c
95. Peaucellier mechanism has
(a) eight links
(b) six links
(c) four links
(d) twelve links
(e) five links.
Ans: a
96. Hart mechanism has
(a) eight links
(b) six links
(c) four links
(d) twelve links
(e) five links.
Ans: b
97. A chain comprises of 5 links having 5 joints. Is it kinematic chain ?
(a) yes
(b) no
(c) it is a marginal case
(d) data are insufficient to determine it
(e) unpredictable.
Ans: b
99. The main disadvantage of the sliding pair is that it is
(a) bulky
(b) wears rapidly
(c) difficult to manufacture
(d) (a) and (b) above
(e) (a) and (c) above.
Ans: d
100. For a kinematic chain to be considered as mechanism
(a) two links should be fixed
(b) one link should be fixed
(c) none of the links should be fixed
(d) there is no such criterion
(e) none of the above.
Ans: b
101. An eccentric sheave pivoted at one point rotates and transmits oscillatory motion to a link whose one end is pivoted and other end is connected to it. This mechanism has
(a) 2 links
(b) 3 links
(c) 4 links
(d) 5 links
(e) none of the above.
Ans: c
102. Whitworth quick return mechanism is obtained by inversion of
(a) slider crank mechanism
(b) kinematic chain
(c) five link mechanism
(d) roller cam mechanism
(e) none of the above.
Ans: a
103. In its simplest form, a cam mechanism consists of following number of links
(a) 1
(b) 2
(c) 3
(d) 4
(e) none.
Ans: c
104. Which of the following mechanisms produces mathematically an exact straight line motion
(a) Grasshopper mechanism
(b) Watt mechanism
(c) Peaucellier's mechanism
(d) Tchabichiff mechanism
(e) Ackermann mechanism.
Ans: c
105. In a mechanism, usually one link is fixed.
If the fixed link is changed in a kinematic chain, then relative motion of other links
(a) will remain same
(b) will change
(c) could change or remain unaltered depending oh which link is fixed
(d) will not occur
(e) none of the above.
Ans: a
Read More Questions:
Theory of Machines - Mechanical Engineering Part1
Theory of Machines - Mechanical Engineering Part2
(a) rotating
(b) oscillating
(c) reciprocating
(d) all of the above
(e) none of the above.
Ans: d
92. A cam with a roller follower would con statute following type of pair
(a) lower pair
(b) higher pair
(c) open pair
(d) close pair
(e) cam pair.
Ans: b
93. The approximate straight line mechanism is a
(a) four bar linkage
(b) 6 bar linkage
(c) 8 bar linkage
(d) 3 bar linkage
(e) 5 bar linkage.
Ans: a
94. Open pairs are those which have
(a) point or line contact between the two elements when in motion
(b) surface contact between the two elements when in motion
(c) elements of pairs not held together mechanically
(d) two elements that permit relative motion
(e) none of the above.
Ans: c
95. Peaucellier mechanism has
(a) eight links
(b) six links
(c) four links
(d) twelve links
(e) five links.
Ans: a
96. Hart mechanism has
(a) eight links
(b) six links
(c) four links
(d) twelve links
(e) five links.
Ans: b
97. A chain comprises of 5 links having 5 joints. Is it kinematic chain ?
(a) yes
(b) no
(c) it is a marginal case
(d) data are insufficient to determine it
(e) unpredictable.
Ans: b
99. The main disadvantage of the sliding pair is that it is
(a) bulky
(b) wears rapidly
(c) difficult to manufacture
(d) (a) and (b) above
(e) (a) and (c) above.
Ans: d
100. For a kinematic chain to be considered as mechanism
(a) two links should be fixed
(b) one link should be fixed
(c) none of the links should be fixed
(d) there is no such criterion
(e) none of the above.
Ans: b
101. An eccentric sheave pivoted at one point rotates and transmits oscillatory motion to a link whose one end is pivoted and other end is connected to it. This mechanism has
(a) 2 links
(b) 3 links
(c) 4 links
(d) 5 links
(e) none of the above.
Ans: c
102. Whitworth quick return mechanism is obtained by inversion of
(a) slider crank mechanism
(b) kinematic chain
(c) five link mechanism
(d) roller cam mechanism
(e) none of the above.
Ans: a
103. In its simplest form, a cam mechanism consists of following number of links
(a) 1
(b) 2
(c) 3
(d) 4
(e) none.
Ans: c
104. Which of the following mechanisms produces mathematically an exact straight line motion
(a) Grasshopper mechanism
(b) Watt mechanism
(c) Peaucellier's mechanism
(d) Tchabichiff mechanism
(e) Ackermann mechanism.
Ans: c
105. In a mechanism, usually one link is fixed.
If the fixed link is changed in a kinematic chain, then relative motion of other links
(a) will remain same
(b) will change
(c) could change or remain unaltered depending oh which link is fixed
(d) will not occur
(e) none of the above.
Ans: a
Read More Questions:
Theory of Machines - Mechanical Engineering Part1
Theory of Machines - Mechanical Engineering Part2
No comments:
Post a Comment