A. for changing the direction of motion of the belt
B. for applying tension
C. for increasing -velocity ratio
D. all of the above
E. none of the above
A. base circle
B. pitch circle
C. prime circle
D. outer circle
E. none of the above
A. less
B. more
C. equal
D. may be less or more depending on efficiency
E. always less
A. inner dead centre
B. outer dead centre
C. right angles to the link of the stroke
D. at 45° to the line of the stroke
E. all of the above
A. a straight line
B. a circle
C. involute
D. cycloidal
E. helix
A. leads the sliding velocity vector by 90°
B. lags the sliding velocity vector by 90°
C. is along the sliding velocity vector
D. leads the sliding velocity vector by 180°
E. none of the above
A. L.H.S. = R.H.S
B. L.H.S. > R.H.S
C. L.H.S. < R.H.S
D. there is no such criterion for checking above requirement
E. none of the above