Glibson flash light torsion dynamometer measures angle of twist - Theory of Machines - 1

Q.  Which of the following statements is/are false?
- Published on 06 Aug 15

a. To prevent heat generated due to friction, rope brake dynamometers are provided with cooling water
b. Angle of twist upto 1/10 of degree can be measured by Glibson flash light torsion dynamometer
c. In pneumatic brakes, the ratio between hydraulic pressure and air pressure is 15:1
d. All the above statements are false

ANSWER: Angle of twist upto 1/10 of degree can be measured by Glibson flash light torsion dynamometer

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    Discussion

  • Sravanthi   -Posted on 19 Oct 15
    - High heat is generated due to friction between rope and pulley of the drum, if high power is produced. Hence they are provided with cooling water which flows through internal flanges on the rim.

    - In torsion dynamometer, when power is transmitted the driving end twists through an angle relative to the driven end. Angle of twist up to 1/100 of a degree can be measured by Bevis-Glibson flash light torsion dynamometer.

    - In pneumatic brakes, air pressure is converted into hydraulic pressure.

    - The ratio between hydraulic pressure and air pressure is 15:1 and the bore of power cylinder is 4 times the master cylinder.

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