Theory of Machines Quiz | Theory of Machines MCQs & Answers
Questions
81
A foot step bearing and rotor of a vertical turbine form examples of
Answer: partially constrained motion
82
Rectangular bar in a rectangular hole is the following type of pair
Answer: completely constrained motion
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83
Shaft revolving in a bearing is the following type of pair
Answer: lower pair
84
To obviate axial thrust, following gear drive is used
Answer: double helical gears having opposite teeth
85
Throw of a cam is the maximum distance of the follower from
Answer: base circle
86
For S.H.M. cam, the acceleration of the follower at the ends of the stroke and aimidstroke respectively, is
Answer: maximum and zero
87
To transmit power from one rotating shaft to another whose axes are neither parallel nor intersecting, use
Answer: worm gear
88
Which of the following is false statement in respect of differences between machine and structure
Answer: Efficiency of machines as well as structures is below 100%
90
A cam with a roller follower would con stitute following type of pair
Answer: higher pair
92
Higher pairs are those which have
Answer: point or line contact between the two elements when in motion
93
If the opposite links of a four bar linkage are equal, the links will always form a
Answer: parallelogram
94
Kinematic pairs are those which have
Answer: two elements that permit relative mo-tion
96
A point on a link connecting double slider crank chain traces a
Answer: ellipse
97
Lower pairs are those which have
Answer: surface contact between the two elements when in motion
99
Klein’s construction gives a graphica construction for
Answer: acceleration polygon
