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

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

“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

Hart mechanism has________________?

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

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

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

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

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 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

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