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How is minimum cranking speed achieved?(a) By providing the hp(b) By providing speed(c) By providing torque(d) By proving sufficient amount of fuelThis question was addressed to me by my college director while I was bunking the class.My question comes from Engine Starting Methods topic in section Diesel Engine Plant of Energy Engineering

Answer»

Right option is (c) By providing torque

To explain: MINIMUM cranking speed is achieved by providing the necessary torque, which is ACTUALLY a purpose of STARTER motor. As the starter motor rotates the FLYWHEEL, the crankshaft is TURNED, which then starts piston movement.



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