List of practice Questions

AB = 40 cm while BC = 30 cm. Areas A and C are equal to 8 \( \text{cm}^2 \) while areas B and D are 6 \( \text{cm}^2 \). The given section is subject to \( M_x = 100 \text{kNm} \) and \( M_y = 40 \text{kNm} \). Find an expression for the bending stress. Assume that the webs are ineffective in bending.
The physical principle used for the derivation of momentum equation is
The lifting flow over circular cylinder is obtained by the combination of
Which of the following is usually measured as the angle between the line of 25% chord and a perpendicular to the root chord?
Winglets are used to reduce
When a nozzle is said to be over expanded?
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