SSC JE Mechanical Engineering 27 Sep 2019 Shift 1 Paper

Question : 179 of 200

Marks: +1, -0

The following data recorded during a test on oil engine:
Speed of Engine = 1000 rpm, Load on the brake = 1000 N, Length of brake = 750 mm,
Then brake power is:

68.55 kW
785.5 kW
55.78 kW
78.55 kW

Validate

Solution:

Speed of engine N = 1000 rpm, load on brake W = 1000 N and length L = 750 mm = 0.75 m.

{T}=1000 \×0.75=750 {N}

P={2 \×\π\×1000 \×750}/{60}=78539.81 {W}

Thus B.P

=78.54 {kW}

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