A piston in an internal combustion engine applies torque during 150^o of each full rotation of the crankshaft to which it is connected.Suppose an 8-cylinder engine (8 such pistons)is running with its crankshaft turning at 2500rpm and produces 410J of work each second.What is the torque applied to the crank shaft by one of the engine's eight pistons? A) 3.8 Nm B) 1.6 Nm C) 0.47Nm D) 0.20 Nm

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Quizplus · Accepted Answer

Given: Time for one full rotation (T) = 1/(2500/60) seconds = 0.024 seconds (approx.) Work done by one piston (W) = 410 J/s Number of pistons (N) = 8 Time for one piston to apply torque (t) = 150^o = 150/1000 seconds = 0.15 seconds Using the formula for torque, Torque (τ) = W/(N*t) = 410/(8*0.15) = 0.47 Nm (approx.) Therefore, the torque applied to the crankshaft by one piston of the engine is 0.47 Nm. Option C) is the correct answer.

A Piston in an Internal Combustion Engine Applies Torque During