• Question Cagtegory: Propulsion
Filter by
Filter by
Questions Per Page:
• ## An apple loses 4.5 kJ of heat as at cools per degree Celsius drop in its temperature. What is the amount of heat lost from the apple per degree Fahrenheit in its temperature?

An apple loses 4.5 kJ of heat as at cools per degree Celsius drop in its temperature. What is the …

• 564 views
• ## What is the work obtained from the cycle?

In a cyclic process the net heat supplied is 70 kJ/s.What is the work obtained from the cycle?

• 227 views
• ## What is the change in internal energy?

A paddle wheel is used for stirring a liquid contained in a tank supplied 6000 kJ of work and during …

• 258 views
• ## Find the work required for the process.

3 kg of steam in a piston -cylinder device at 400 kPa and 175 degree Celsius undergoes a mechanically reversible …

• 262 views
• ## What will be the ratio for maximum propulsive efficiency?

What is the ratio of flight speed to the exhaust velocity for maximum propulsion efficiency ?

• 202 views
• ## Find the fuel to air ratio.

The stagnation temperatures at the inlet and exit of a combustion chamber are 600 K and 1200 K ,respectively.If the …

• 232 views
• ## Determine the thrust of the turbojet engine.

A turbojet powered aircraft is flying at Mach number $$0.8$$ at an altitude of $$10\; km$$.The inlet and exit …

• 196 views
• ## Find the total temperatures at the exit of the air intake and the compressor respectively.

A jet engine is operating at a Mach number of $$0.8$$ at an altitude of $$10 \;km$$.The efficiency of the …

• 194 views
• ## Find the ratio of specific heats.

In case of ideal triatomic gas , What is the ratio of specific heats $$C_p/C_v$$?

• 214 views
The temperature field in a body varies according to the equation $$T(x,y)=x^{3}+4xy$$.Find the direction of  fastest variation in temperature at …