Gas turbines use following type of air compressor Centrifugal type Reciprocating type Lobe type Axial flow type TRUE ANSWER : ? YOUR ANSWER : ?
A centrifugal compressor works on the principle of Generating pressure directly Conversion of pressure energy into kinetic energy Conversion of kinetic energy into pressure energy Centripetal action TRUE ANSWER : ? YOUR ANSWER : ?
A machine used to raise the pressure of air is called Air motor Gas turbine Compressor I.C engine TRUE ANSWER : ? YOUR ANSWER : ?
Separators in compressor installations are located Between after-cooler and air receiver Before inter-cooler After receiver After inter-cooler TRUE ANSWER : ? YOUR ANSWER : ?
The air entry velocity m a rocket as compared to aircraft is More Same Zero Less TRUE ANSWER : ? YOUR ANSWER : ?
The type of rotary compressor used in gas turbines, is of None of the listed here Axial flow type Radial flow type Centrifugal type TRUE ANSWER : ? YOUR ANSWER : ?
Reheating in a multistage expansion gas turbine ________ compressor work. Decreases Has no effect on Increases None of these TRUE ANSWER : ? YOUR ANSWER : ?
The pressure ratio of an ideal vaned compressor with increase in mass flow rate First decreases and then increases Decreases Increases Remain constant TRUE ANSWER : ? YOUR ANSWER : ?
In a four stage compressor, if the pressure at the first and third stage is 1 bar and 16 bar, then the delivery pressure at the fourth stage will be 16 bar 256 bar 1 bar 64 bar TRUE ANSWER : ? YOUR ANSWER : ?
The effective power of gas turbines is increased by adding the following in compressor Hydrogen Carbon dioxide Nitrogen Ammonia and water vapour TRUE ANSWER : ? YOUR ANSWER : ?