Internal Combustion Engines (I.C. Engines)

The brake power (B.P.) of the engine is given by (where W = Brake load or dead load in newtons, l = Length of arm in meters, N = Speed of engine in r.p.m., S = Spring balance reading in newtons, D = Dia. of brake drum in meters, and d = Dia. of rope in meters).

  • A. B.P = (Wl × 2πN)/60 watts
  • B. B.P = [(W – S) πDN]/60 watts
  • C. B.P = [(W – S) π (D + d) N]/60 watts
  • D. All of these
Answer: Option D.

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