An economiser in a boiler Increases steam pressure Decreases fuel consumption Increases steam flow Decreases steam pressure TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following boiler works on a forced circulation of water? Benson boiler Lamont boiler All of these Loeffler boiler TRUE ANSWER : ? YOUR ANSWER : ?
The artificial draught is produced by Steam jet Centrifugal fan Chimney Both (A) and (B) TRUE ANSWER : ? YOUR ANSWER : ?
In regenerative air preheaters, the heat is transferred Heat is transferred by bleeding some gas from furnace From a metal wall from one medium to another From heating an intermediate material and then heating the air from this material By direct mixing TRUE ANSWER : ? YOUR ANSWER : ?
The value of the reheat factor varies from 1.2 to 1.6 1.02 to 1.06 1.08 to 1.10 1.6 to 2 TRUE ANSWER : ? YOUR ANSWER : ?
The ratio of the useful heat drop to the isentropic heat drop is called Condenser efficiency Boiler efficiency Vacuum efficiency Nozzle efficiency TRUE ANSWER : ? YOUR ANSWER : ?
Steam in water tube boiler as compared to fire tube boiler Could be raised at fast/slow rate depending on design Can be raised rapidly Is raised at slower rate Is raised at same rate TRUE ANSWER : ? YOUR ANSWER : ?
The feed check valve is used in order to Recirculate unwanted feed water Check level of water in boiler drum Regulate flow of boiler water Allow high pressure feed water to flow to drum and not allow reverse flow to take place TRUE ANSWER : ? YOUR ANSWER : ?
The safety valve on boiler drum compared to safety valve on superheater is set at Lower/higher depending on steam flow Same value Higher value Lower value TRUE ANSWER : ? YOUR ANSWER : ?