Mechanical Engineering Mcqs

In elliptical trammels_________________?
  • (A)  all four pairs are turning
  • (B)  three pairs turning and one pair sliding
  • (C)  two pairs turning and two pairs sliding
  • (D)  one pair turning and three pairs sliding
  • (E)  all four pairs sliding
Idler pulley is used___________________?
  • (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