A. spur gear
B. spiral gear
C. bevel gear
D. worm gear
E. crown gear
A. D1/D2
B. D2/D1
C. D1-D2.
D. D1
E. D1+D2
A. double helical gears having opposite teeth
B. double helical gears having identical teeth
C. single helical gear in which one of the teeth of helix angle a is more
D. mutter gears
E. none of the above
A. maximum and zero
B. zero and maximum
C. minimum and maximum
D. zero and minimum
E. maximum and minimum
A. a straight line
B. a circle
C. involute
D. cycloidal
E. helix
A. material of the pulley
B. material of the belt
C. larger size of the driver pulley
D. uneven extensions and contractions due to varying tension
E. expansion of belt
A. tension on tight side of belt
B. tension on slack side of belt
C. radius of pulley
D. speed of pulley
E. all of the above
A. inertia
B. momentum
C. moment of momentum
D. work
E. torque
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. decrease the variation of speed
B. to control
C. to control SN
D. all of the above
E. none of the above