The length of Lancashire boiler varies from 9 to 10 m 6 to 7 m 7.25 to 9 m 5 to 6 m TRUE ANSWER : ? YOUR ANSWER : ?
A stage, in reaction turbine, is represented by Each row of blades Number of exits of steam Number of entries of steam Number of casing TRUE ANSWER : ? YOUR ANSWER : ?
The rate of discharge through the nozzle ___ when the exit pressure is gradually reduced. Remains same Decreases None of the listed here Increases TRUE ANSWER : ? YOUR ANSWER : ?
The impulse turbine rotor efficiency will have a maximum value of 0.5 cos 2α, where α is the nozzle exit flow angle, if the Blade velocity coefficient is unity Blades are equiangular Blade solidity is 0.65 Blades are equiangular and frictionless TRUE ANSWER : ? YOUR ANSWER : ?
Duplex feed pumps are used in small steam boilers. These operate on the principle of Axial flow pump Reciprocating pump Gear pump Centrifugal pump 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 100 kg/cm² and 540°C 218 kg/cm² abs and 540°C 218 kg/cm² abs and 373°C TRUE ANSWER : ? YOUR ANSWER : ?
Thermal equilibrium means that the flow of steam is Hyperbolic Isothermal Isentropic Polytropic TRUE ANSWER : ? YOUR ANSWER : ?
The high pressure and low pressure cylinders in a receiver type compound engine are regarded as having cranks 0° to each other 180° to each other 90° to each other None of these TRUE ANSWER : ? YOUR ANSWER : ?
The ratio of brake power to the indicated power is known as Indicated thermal efficiency Brake thermal efficiency Overall efficiency Mechanical efficiency TRUE ANSWER : ? YOUR ANSWER : ?
Size of boiler tubes is specified by Inside diameter and thickness Mean diameter and thickness Outside diameter and inside diameter Outside diameter and thickness TRUE ANSWER : ? YOUR ANSWER : ?