17080. Willian’s line follows the law (where b = A constant representing the shape of the Willian’s line, a = Another constant i.e. no load consumption per hour, I.P. = Indicated power, and m = Steam consumption per hour) September 13, 2025 by Admin I.P. = a x m + b m = a + b x I.P. I.P. = b x m + a m = b/I.P. – a ✅ The correct answer is option B.