21) Which of the following is not a desirable material for rivets ?
a) mild steel
b) cast iron
c) aluminium
d) copper
22) The diameter of a rivet will be if plate thickness is 8 mm
a) 5.66 mm
b) 11.3 mm
c) 16.9 mm
d) 22.6 mm
23) In a fillet welded joint, the weakest area of weld is
a) Toe
b) Root
c) Throat
d) Face
24) Which of the following is not a friction clutch ?
a) plate clutch
b) jaw clutch
c) cone clutch
d) centrifugal clutch
25) The ratio of inner to outer radii of a clutch is normally taken between
a) 0.3 – 0.4
b) 0.4 – 0.4
c) 0.5 – 0.6
d) 0.6 – 0.7
26) The type of chain used in motor cycle is
a) Bush roller
b) Silent
c) Pintle
d) Ewast
Thank You!!