The centrifugal tension in the belt
A. Increases the power transmitted
B. Decreases the power transmitted
C. Has no effect on the power transmitted
D. Is equal to maximum tension on the belt
Answer: Option C
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A cotter joint is used to connect two __________ rods.
A. Co-axial
B. Perpendicular
C. Parallel
D. None of these
The rated life of a bearing varies
A. Directly as load
B. Inversely as square of load
C. Inversely as cube of load
D. Inversely as fourth power of load
The bending stress in a curved beam is
A. Zero at the centroidal axis
B. Zero at the point other than centroidal axis
C. Maximum at the neutral axis
D. None of these
The centre to centre distance between two consecutive rivets in a row, is called
A. Margin
B. Pitch
C. Back pitch
D. Diagonal pitch
reduces power transmission
The answer is B.
Power transmission is proportional to belt speed. Therefore the centrifugal force reduces the pressure between the belt and the pulleys, and move the belt away from the pulley and reduce the wrap angle. Therefore, the belt tensions and power transmission also are reduced
The answer is B.
Power transmission is proportional to belt speed. Therefore the centrifugal force reduces the pressure between the belt and the pulleys, and move the belt away from the pulley and reduce the wrap angle. Therefore, the belt tensions and power transmission also are reduced