15. Kinematic pairs are those which have two elements that
A.Have line contact
B.Have surface contact
C.Permit relative motion
D.Are held together
16. A simple mechanism has
A.1 link
B.2 links
C.3 links
D.4 links
17. The lower pair is a
A.Open pair
B.Does not exist.
C.Sliding pair
D.Point contact pair
18. Automobile steering gear is an exrimple of
A.Higher pair
B.Lower pair.
C.Turning pair
D.Rotary pair
19. In higher pair, the relative motion is
A.Purely turning
B.Combination of sliding and turning.
C.Purely rotary
D.Purely surface contact
20. Which of the following has sliding motion
A.Crank
B.Connecting rod
C.Crank pin
D.Crosshead
21. The;,example of higher pair is
A.Belt, rope and chain drives
B.Gears, cams
C.Ball and roller bearings
D.All of the above
Page 3 of 43