Theory of Machine | Theory of Machine Objective Type Questions and answers

16. The centrifugaltension in belts.......

   A.reduces power transmission

   B.increases power transmission

   C.does not affect power transmission

   D.increases power transmission upto certain speed and then decreases

   E.none of the above

17. Length of cross belt, in addition to centre lenth, depends.......

   A.only on the sum of the radii of pulleys

   B.on the sum and difference of the radii of the pulleys

   C.square of difference of radii of the pulleys

   D.square of sum of radii of pulleys

   E.none of the above

18. Initial tension in belts, when stationary, is.......

   A.T₁

   B.T₂

   C.T₁+T₂

   D.T₁+T₂/2

   E.T₁-T₂/2

19. Length of open belt, in additional to centre length,depends.......

   A.only on the sum

   B.on the sum and difference of the radii of the pulleys

   C.square of difference of radii of pulleys

   D.square of sum of radii of pulleys

   E.none of the above

20. The belting can transmit maximum power when maximum total tension in belt equals.......

   A.twice the centrifugal tension

   B.thrice the centrifugal tension

   C.four times the centrifugal tension

   D.centrifugal tension

   E.half the centrifugal tension

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