Kinematic pairs are those which have___________________?

A. Two elements held together mechani-cally
B. Two elements having relative motion
C. Two elements having coroili’s com-ponent
D. Minimum of two instantaneous centres

In a darg link quick return mechanism, the shortest link is always fixed. The sum of the shortest and longest link is _______________?

A. Equal to sum of other two
B. Greater than sum of other two
C. Less than sum of other two
D. There is no such relationship

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

In its simplest form, a cam mechanism consists of following number of links___________________?

A. 1
B. 2
C. 3
D. 4

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

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

Hart mechanism has________________?

A. Eight links
B. Six links
C. Four links
D. Twelve links

“Open pairs are those which have__________________?

A. Point or line contact between the two elements when in motion
B. Surface contact between the two ele-ments when in motion
C. Elements of pairs not held together mechanically
D. Two elements that permit relative motion

A cam with a roller follower would con stitute following type of pair______________?

A. Lower pair
B. Higher pair
C. Open pair
D. Close pair

Higher pairs are those which have_________________?

A. Point or line contact between the two elements when in motion
B. Surface contact between the two ele-ments when in motion
C. Elements of pairs not held together mechanically
D. Two elements that permit relative motion