List of practice Questions

For a flow a Prandtl-Meyer expansion wave is
Which of the following is a barotropic flow?
The schadowgraph flow visualization technique depends on
Flow separation is due to
The semi-span of a rectangular wing of plan form area 8.4 m² is 3.5 m. The aspect ratio of the wing is
What is the center pressure if the lift coefficient and lift curve slope of an aerofoil of percentage camber 0.6 are 1.02 and 2, respectively?
Consider an infinitely thin flat plate at an angle of attack of \(5^\circ\) in a Mach 2.3 flow. Pressure is 101 kPa. The lift coefficient as per shock expansion theory is
Aerodynamic center is defined as point on the airfoil at which
What is the Coefficient of pressure, where velocity at the surface of the cylinder is equal to free stream velocity?
Which of the following states that the time rate of change of circulation around a closed curve consisting of the same fluid elements is zero?
For calorically perfect gas, specific heats \(C_p\) and \(C_v\) are
The free stream Mach number for which the entire flow around the body is subsonic is called
When airfoil thickness decreases, the critical Mach number
What is the purpose of supercritical airfoil?
A turbojet powered aircraft is suitable for which of the following type of applications?
For which of these applications is the turbo shaft engine most suited?
In the subcritical operation mode of a supersonic inlet, shock strands
Ram efficiency is defined as
The combustion in a gas turbine is a
What is the purpose of a fuel injection system in the combustor?
The critical mass flow rate through a converging-diverging nozzle
For a given rotational speed of a rotor of an axial flow compressor, as the fan tip radius increases, the centrifugal stress on the fan blade
Pressure gradient in the flow direction
If there is no change in static enthalpy and static pressure across a rotor, then the turbo-machine is called
In a turbojet engine, thrust specific fuel consumption ________ with increasing compressor pressure ratio and __________ with increasing turbine inlet temperature (within range of operation).