Related Questions

In replacing the V-belts, a complete set of new belts is used instead of replacing a single damaged belt because
A Belts are available in sets
B Only one belt cannot be fitted with other used belts
C The new belt will carry more than its share and result in short life
D New and old belts will cause vibrations
The power transmitted by a belt is maximum when the maximum tension in the belt is _________ of centrifugal tension.
A One-third
B Two-third
C Double
D Three times
When the belt is stationary, it is subjected to some tension known as initial tension. The value of this tension is equal to the
A tension in the tight side of the belt
B tension in the slack side of the belt
C sum of the tensions on the tight side and slack side of the belt
D average tension of the tight side and slack side of the belt
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
The tension on the slack side of the belt is __________ the tension on the tight side of the belt.
A Equal to
B Less than
C Greater than
D None of these
If tension in the cable supporting a lift moving downwards is half the tension when it is moving upwards, the acceleration of the lift is
A $$\frac{{\text{g}}}{2}$$
B $$\frac{{\text{g}}}{3}$$
C $$\frac{{\text{g}}}{4}$$
D None of these
The length of lap in tension reinforcement should not be less than the bar diameter × (actual tension / four times the permissible average bond stress) if it is more than
A 18 bar diameters
B 24 bar diameters
C 30 bar diameters
D 36 bar diameters
If the tension in a cable supporting a lift moving upwards is twice the tension when the lift is moving downwards, the acceleration of the lift, is
A $$\frac{{\text{g}}}{2}$$
B $$\frac{{\text{g}}}{3}$$
C $$\frac{{\text{g}}}{4}$$
D $$\frac{{\text{g}}}{5}$$
No one _____ in the accident if all the passengers had been wearing safety belts.
A would be hurt
B had been hurt
C will be being hurt
D would have been hurt
I think all drivers----------------seat belts.
A had better wear
B had better to wear
C should wear
D could better to wear

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