Related Questions

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
Unit of surface tension in S.I. unit is
A Watt/m
B Joule/m2
C Newton/m2
D Joule/m
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
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 $$\frac{{\text{g}}}{5}$$
Which one is the unit of surface tension of a liquid
A Newton /m2
B Electron volt /cm2
C Joule/ mm
D None of the above
Unit of surface tension is
A Energy/unit area
B Velocity/unit area
C Both of the above
D It has no units
The rate of energy emission from unit surface area through unit solid angle, along a normal to the surface, is known as
A Emissivity
B Transmissivity
C Reflectivity
D Intensity of radiation

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