General Studies · IC Engine
What will be the brake power (BP) of the engine if it is tested with a rope brake dynamometer? Given, W = Dead load (in Newtons), S = Spring balance reading (in Newtons), D = Diameter of the brake drum wheel (in metres), d = Diameter of the rope (in metres) and N = Speed of the engine shaft (in RPM)
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- 1BP = (W+S) π (D-d) N60 Watts
- 2BP = (W-S) π (D+d) N60 Watts✓
- 3BP = (W+S) π (D+d) N60 Watts
- 4BP = (W-S) π (D-d) N60 Watts
Correct answer
BP = (W-S) π (D+d) N60 Watts
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