diameter of both the shafts is same

angle of twist of both the shafts is same

material of both the shafts is same

twisting moment of both the shafts is same

base circle

pitch circle

prime circle

pitch curve

10 m/s

12.5 m/s

15 m/s

20 m/s

velocity of the belt

tension under which the belt is placed on the pulleys

arc of contact between the belt and the smaller pulley

all of the above

Bushed pin type coupling

Universal coupling

Oldham coupling

all of these