The air pressure at the fuel bed is reduced below that of atmosphere by means of a fan placed at or near the bottom of the chimney to produce a draught. Such a draught is called Balanced draught Induced draught Forced draught Natural draught TRUE ANSWER : ? YOUR ANSWER : ?
Reheating of steam in a turbine Increases the work-done through the turbine Increases the efficiency of the turbine All of these Reduces wear on the blades TRUE ANSWER : ? YOUR ANSWER : ?
The radius of a dished head is taken approximately as Two One Half One fourth TRUE ANSWER : ? YOUR ANSWER : ?
The effect of super-saturation is that the All of these Mass of the steam discharged increases Entropy and specific volume of the steam increases Exit velocity of steam reduces TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following boiler is best suited to meet the fluctuating demand of steam? Locomotive boiler Cornish boiler Babcock and Wilcox boiler Lancashire boiler TRUE ANSWER : ? YOUR ANSWER : ?
The pressure compounded impulse turbine as compared to velocity compounded turbine require __________ number of stages. Less None of these More Same TRUE ANSWER : ? YOUR ANSWER : ?
An air preheater is installed None of these Before the economiser Between the economiser and chimney Before the superheater TRUE ANSWER : ? YOUR ANSWER : ?
The specific heat of superheated steam in kcal/kg is generally of the order of 0.8 0.5 0.3 0.1 TRUE ANSWER : ? YOUR ANSWER : ?
The pressure of reheat steam after passing through reheater compared to inlet condition is Equal Less May be more or less depending on capacity of reheater More TRUE ANSWER : ? YOUR ANSWER : ?
The three "Ts" for good combustion are Total air, time, and temperature Total air, true fuel, and turbulence Temperature, time, and turbulence Thorough mixing, total air and temperature TRUE ANSWER : ? YOUR ANSWER : ?