List of top Aerospace Engineering Questions asked in TS PGECET

Cusped airfoil is
D'Alembert's Paradox states that the drag force on a body in an ideal fluid is
The aerodynamic centre of a subsonic airfoil is located at
In the NACA 64-212 designation, the third digit indicates
Water flows steadily through a horizontal pipe from point \(1\) to point \(2\). At point \(1\), the velocity is \(2\ \text{m/s}\) and the pressure is \(300\ \text{kPa}\). At point \(2\), the velocity is \(4\ \text{m/s}\) and the height difference between the points is negligible. The density of water is \(1000\ \text{kg/m}^3\). The pressure at point \(2\) is
The potential lines for a doublet flow are
The drag of a rough cylinder compared to a smooth cylinder of the same size is
A source of strength \(\Gamma\) is placed in a uniform flow \(V_{\infty}\), the distance of the stagnation point from the source is
1 Poise is equal to
If the Reynolds number (\(Re\)) at a point on a flat plate doubles while the flow remains laminar, what happens to the boundary layer thickness \(\delta\)?
When the stream function \(\psi\) satisfies the Laplace equation \[ \nabla^2\psi=0, \] the flow is confirmed to be
A satellite is transferred from a circular orbit of radius \(r\) to a circular orbit of radius \(5r\). What is the time taken for the transfer in terms of the period (\(T_1\)) of the first orbit?
In space dynamics, which of the following manoeuvre is an out-of-plane manoeuvre?
A satellite is in a circular orbit around Earth at an altitude where the orbital radius is exactly \(4\) times the radius of another satellite's orbit. If the first satellite has a time period of \(2\) hours, what is the time period of the second satellite (in hours)?
Euler angles describe an aircraft's orientation relative to
The 6-DOF translational equation along the \(x\)-axis is
The yawing moment coefficient per sideslip angle is positive. What does this indicate?
The longitudinal motion of an aircraft is governed by the following characteristic equation for its Short Period Mode: \[ s^2+4.8s+16=0. \] Calculate the damping ratio.
The Free Elevator Factor (FEF) primarily indicates
Stick-fixed condition is that
During a sideslip, the pilot applies
Phugoid oscillation of an aircraft is
An airplane has its Neutral Point \(x_{NP}\) located at \(0.35c\) (35% of the Mean Aerodynamic Chord). The Current Center of Gravity (CG) \(x_{CG}\) is \(0.20c\) (20% of the Mean Aerodynamic Chord). The pilot wants to move the CG to a new position such that the Static Margin is reduced by exactly \(50\%\). Calculate the new location of CG?
An airplane with symmetric airfoil requires a lift coefficient \(0.52\). If the lift curve slope is \(0.1\) per degree and the angle of zero lift is \(0\), calculate the required angle of attack (in radians).
Crosswind primarily affects