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What is the regulation of speed when speed at no load of engine is 1973 rpm and speed at load is 1873 rpm?

What is the regulation of speed when speed at no load of engine is 1973 rpm and speed at load is 1873 rpm? Correct Answer 5.20%

N1 = 1973; N2 = 1873 ∆N = N2-N1 ∆N = 1973-1873 = 100rpm N = N2-N1/2 N = 1973+1873/2 = 1923 Regulation of speed = ∆N/ N = 100/ 1923 = 0.0520 = 5.20%.

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