Losses in a centrifugal compressor are due to Impeller channel losses Diffuser losses Inlet losses All of the listed here TRUE ANSWER : ? YOUR ANSWER : ?
The working fluid in a turbine is In two phases In the form of air and water mixture In three phases In a single phase TRUE ANSWER : ? YOUR ANSWER : ?
An ideal air compressor cycle without clearance on P-V diagram can be represented by following processes One adiabatic, two isobaric, and one constant volume Two adiabatic, one isobaric and one constant volume Two adiabatic and two isobaric One adiabatic, one isobaric and two constant volumes TRUE ANSWER : ? YOUR ANSWER : ?
Phenomenon of choking in compressor means Increased inclination of chord with air steam Reducing mass flow rate with increase in pressure ratio Fixed mass flow rate regardless of pressure ratio No flow of air TRUE ANSWER : ? YOUR ANSWER : ?
The main purpose of reheating in gas turbine is to Increase power output Reduce turbine size Increase speed Increase temperature TRUE ANSWER : ? YOUR ANSWER : ?
In turbo fan engine, the jet velocity as compared to turbojet engine is More May be less or more depending upon speed Less Same TRUE ANSWER : ? YOUR ANSWER : ?
A compressor at high altitudes will require ___ power. None of the listed here Less More Same TRUE ANSWER : ? YOUR ANSWER : ?
The hottest point in a gas turbine is at the tip at the base in the center between ~ to i of the blade height TRUE ANSWER : ? YOUR ANSWER : ?
Which one of the following is the effect of blade shape on performance of a centrifugal compressor? Forward curved blades has higher efficiency Forward curved blades produce lower pressure ratio Backward curved blades lead to stable performance Backward curved blades has poor efficiency TRUE ANSWER : ? YOUR ANSWER : ?
Gas turbines use following type of air compressor Axial flow type Centrifugal type Reciprocating type Lobe type TRUE ANSWER : ? YOUR ANSWER : ?