A braking torque of 2 kN-m is applied on a machine member to reduce the speed from 2000 rpm to 500 rpm in 10 sec. The specific heat of the brake material is 500 J/kg °C. The temperature rise for the brake per unit mass during braking period is
A. 45°C
B. 34°C
C. 109.4°C
D. 91.3°C
Answer: Option D
This Question Belongs to Automobile Engineering >> Braking System
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In the air brake, air pressure is supplied by
A. The engine manifold
B. A compressor
C. The diaphragm valve
D. A condensor
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A. Wet brake lining
B. Burntor worn out linings
C. Both are correct
D. None of the above
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A. To increase the co-efficient of friction
B. To prevent wearing away of the metal
C. Both are correct
D. None of the above
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