Willian's law states that the steam consumption per hour provided with a throttled governor is proportional to (where I.P. = Indicated power) 1/(I.P)² I.P. (I.P.)² 1/(I.P) TRUE ANSWER : ? YOUR ANSWER : ?
The maximum steam pressure in a Locomotive boiler is limited to 1.8 MN/m² 0.18 MN/m² 180 MN/m² 18 MN/m² TRUE ANSWER : ? YOUR ANSWER : ?
The cylindrical shell of a Lancashire boiler has diameter from 1 to 2 m 1.25 to 2.25 m 1.75 to 2.75 m 1.5 to 2.5 m TRUE ANSWER : ? YOUR ANSWER : ?
A supercritical boiler is one that operates above the pressure and temperature of following values 1 kg/cm² and 100°C 218 kg/cm² abs and 373°C 218 kg/cm² abs and 540°C 100 kg/cm² and 540°C TRUE ANSWER : ? YOUR ANSWER : ?
In locomotive boiler, maximum steam pressure is limited to 1 kg/cm² 10 kg/cm² 18 kg/cm² 5 kg/cm² TRUE ANSWER : ? YOUR ANSWER : ?
Film boiling occurs at Medium pressures Atmospheric pressures Very low pressure Very high pressures TRUE ANSWER : ? YOUR ANSWER : ?
The main object of a boiler trial is All of these To determine the generating capacity of the boiler To determine the thermal efficiency of the boiler when working at a definite pressure To prepare heat balance sheet for the boiler TRUE ANSWER : ? YOUR ANSWER : ?
The function of a flywheel is To keep the engine speed uniform at all load conditions To convert rotary motion of the crankshaft into to and fro motion of the valve rod To prevent fluctuation of speed To convert reciprocating motion of the piston into rotary motion TRUE ANSWER : ? YOUR ANSWER : ?
In an impulse turbine The steam is expanded both in fixed and moving blades continuously The pressure and temperature of steam remains constant The steam is expanded in nozzles only and there is a pressure drop and heat drop The steam is expanded in moving blades only TRUE ANSWER : ? YOUR ANSWER : ?
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) I.P. = a × m + b I.P. = b × m + a m = (b/I.P.) - a m = a + b × I.P. TRUE ANSWER : ? YOUR ANSWER : ?