Engineering MCQs

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)

by
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.

The primary unbalanced force due to inertia of reciprocating parts in a reciprocating engine is given by (where m = Mass of reciprocating parts, ω = Angular speed of crank, r = Radius of crank, θ = Angle of inclination of crank with the line of stroke, and n = Ratio of the lengm of connecting rod to radius of crank)

by
m.ω2.r sin θ
m.ω2.r cos θ
m.ω2.r
m.ω2.r
✅ The correct answer is option B.