The air power of the compressor is also known as None of these Brake power Indicated power Frictional power TRUE ANSWER : ? YOUR ANSWER : ?
1 m of air at atmospheric condition weighs approximately 1.0 kg 2.2 kg 1.3 kg 0.5 kg TRUE ANSWER : ? YOUR ANSWER : ?
In a reciprocating air compressor, the compression work per kg of air Decreases as clearance volume increases Is independent of clearance volume Increases as clearance volume decreases Increases as clearance volume increases TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following fuels can be used in turbojet engines? Liquid hydrogen Kerosene Methyl alcohol High speed diesel oil TRUE ANSWER : ? YOUR ANSWER : ?
The air-fuel ratio in gas turbines is of the order of 7: 1 50: 1. 15: 1 30: 1 TRUE ANSWER : ? YOUR ANSWER : ?
In multistage compressor, the isothermal compression is achieved by By constantly cooling the cylinder By running compressor at very slow speed Employing inter-cooler By insulating the cylinder TRUE ANSWER : ? YOUR ANSWER : ?
The following is true for an open cycle gas turbine having exhaust heat exchanger. Atmospheric air before entering the compressor is Bled gas from turbine is heated and readmitted for complete expansion Heated Exhaust gases drive the compressor Compressed air before entering the combustion chamber is heated TRUE ANSWER : ? YOUR ANSWER : ?
The work ratio of a gas turbine plant is defined as the ratio of Net work output and work done by turbine Actual heat drop and isentropic heat drop Net work output and isentropic heat drop Net work output and heat supplied TRUE ANSWER : ? YOUR ANSWER : ?
A turboprop is preferred to turbojet because It has high propulsive efficiency at high speeds It can fly at supersonic speeds It can fly at high elevations It has high power for take off TRUE ANSWER : ? YOUR ANSWER : ?
It is not possible to use closed gas turbine cycle in aeronautical engines because None of these It requires cooling water for its operation It is inefficient It is bulky TRUE ANSWER : ? YOUR ANSWER : ?