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What is the Mach angle for a flow at Mach 2.0?
What is the Mach angle for a flow at Mach 2.0 ?
GATE

Mach number

Kisan Kumar Asked on 2nd October 2019 in Flight mechanics.
- 1K views
- 1 answers
- 0 votes
What is the ratio of flight speed to the exhaust velocity for maximum propulsion efficiency ?
What is the ratio of flight speed to the exhaust velocity for maximum propulsion efficiency ?
GATE

Kisan Kumar Asked on 2nd October 2019 in Propulsion.
- 1K views
- 1 answers
- 0 votes
The logarithmic decrement measured for a viscously damped single degree of freedom system is 0.125. What is the value of the damping factor in percent?
The logarithmic decrement measured for a viscously damped single degree of freedom system is 0.125. What is the value of …
GATE

Kisan Kumar Asked on 2nd October 2019 in Control system.
- 1K views
- 1 answers
- 0 votes
Find the radial component and tangential component of the fluid’s velocity.
A thin long circular pipe of 10 mm diameter has porous walls and spins at 60 rpm about its own …
GATE

Kisan Kumar Asked on 1st October 2019 in Fluid dynamics.
- 1K views
- 1 answers
- 0 votes
A rocket motor has a combustion chamber temperature of 2600 K and the products have molecular weight of 25g/mol and ratio of specific heats 1.2.The universal gas constant is 8314 J/kg-mol-K. What is the value of theoretical \(c^{*}\) in (m/s)?
A rocket motor has a combustion chamber temperature of 2600 K and the products have molecular weight of 25g/mol and …
GATE

rocket propulsion

Kisan Kumar Asked on 30th September 2019 in Rocket and Space propulsion.
- 1K views
- 1 answers
- 0 votes
An airfoil generates a lift of 80 N when operating in a free stream flow of 60 m/s. If the ambient pressure and temperature are 100 kPa and 290 K respectively ( specific gas constant is 287 J/kg-K), find the circulation on the airfoil.
An airfoil generates a lift of 80 N when operating in a free stream flow of 60 m/s. If the …
GATE

incompressible flow

Kisan Kumar Asked on 30th September 2019 in Aerodynamics.
- 1K views
- 1 answers
- 0 votes
What will be the time taken by the aircraft to climb the altitude?
An aircraft has a steady rate of climb of 300 m/s at sea level and 150 m/s at 2500 m …
flight mechanics

techAir Asked on 29th September 2019 in Flight mechanics.
- 1K views
- 0 answers
- 0 votes
3 kg of steam in a piston -cylinder device at 400 kPa and 175 degree Celsius undergoes a mechanically reversible , isothermal compression to a final pressure such that the steam becomes just saturated. What is 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 …
thermodynamics

techAir Asked on 29th September 2019 in Propulsion.
- 1K views
- 1 answers
- 0 votes
A paddle wheel is used for stirring a liquid contained in a tank supplied 6000 kJ of work and during the stirring operation the tank lost 1500 kJ of heat to the surroundings. If the tank and liquid are considered as a system what will be its change in internal energy.
A paddle wheel is used for stirring a liquid contained in a tank supplied 6000 kJ of work and during …
thermodynamics

Worldtech Asked on 29th September 2019 in Propulsion.
- 1K views
- 1 answers
- 0 votes
In a cyclic process the net heat supplied is 70 kJ/s. 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?
thermodynamics

Worldtech Asked on 29th September 2019 in Propulsion.
- 1K views
- 1 answers
- 0 votes

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