List of top Questions asked in TS PGECET- 2026

For an axial turbine stage, the work done per unit mass flow is directly proportional to

An axial turbine stage has a degree of reaction of \(50\%\) and operates with symmetrical velocity triangles (i.e., absolute inlet and exit flow angles are equal in magnitude but opposite in direction). The axial velocity remains constant through the stage. Which of the following statements is correct?

The work done by the rotor in an axial compressor primarily results in

A convergent-divergent nozzle is used in jet engines to

The main thermodynamic cycle used in a turbojet engine is

The degree of reaction of an axial compressor stage is defined as the ratio of

In an axial compressor, the change in angular momentum of air through the rotor is directly related to

In a ramjet engine, the air compression takes place by

Which of the following sequences correctly represents the flow of air in a basic turbojet engine?

A turbofan engine has a high bypass ratio, meaning most of the air flows through the bypass duct instead of the core. The engine manufacturer claims this design "improves fuel efficiency and reduces noise". Which of the following statements reflects the best critical evaluation of this claim?

A man is sitting inside a house during the winter season. The main mode of heat transfer from the man's body to the surroundings is

In a jet engine's combustion chamber, detonation refers to

Which of the following statement about Airy's stress function \(\phi(x,y)\) is correct?

Let \(A\) be a square matrix. Which of the following statement about eigenvectors is correct?

In the context of mechanical vibrations, static coupling refers to

In an under damped single degree of freedom system, the ratio of the first peak amplitude to the seventh peak amplitude is \[ \frac{x_1}{x_7}=64. \] Then, the ratio of two successive peak amplitudes is

The natural frequency of a simple spring-mass system with static deflection \(9.81\ \text{cm}\) is

Which specific flight load acts like a 'hammer blow' to the wing structure, momentarily increasing the angle of attack and lift?

In a Semi-Monocoque wing undergoing upward bending, which of the following is true regarding the wing skins?

Which material property is most important for the web of a Wagner Beam?

For a thin-walled C-channel, why does a load applied at the centroid produce twisting?

Which structural design philosophy allows the outer skin of an aircraft to carry a significant portion of the load?

The standard shear flow formula \[ q=\frac{VQ}{I} \] is not applicable to thick-walled sections. The primary reason is

A symmetrical section subjected to a load inclined to its principal axis will produce

According to Bredt--Batho theory, shear flow in a thin-walled closed section under torsion is