List of top Questions asked in TS PGECET- 2026

High excess air in a furnace combustion process generally
Fourier's law of heat conduction relates
Boltzmann equation relates
Entropy of a perfect crystal at 0 K is
Steady-state conduction implies
Adding insulation to a cylindrical pipe with a radius smaller than the critical radius of insulation will
The driving force for heat conduction is called as:
Furnace efficiency is best defined as the ratio of
A Sankey diagram is primarily used to represent
Saturated steam at 100 \(^\circ\)C condenses on the outside of a tube. Cold fluid enters the tube at 20 \(^\circ\)C and exits at 50 \(^\circ\)C. The value of the Log Mean Temperature Difference (in \(^\circ\)C) is:
Consider a counter-flow heat exchanger with the inlet temperatures of two fluids (1 and 2) being \(T_1 = 300\) K and \(T_2 = 350\) K. The heat capacity rates of the two fluids are \(C_1 = 1000\) W/K and \(C_2 = 400\) W/K, and the effectiveness of the heat exchanger is 0.5. The actual heat transfer rate is (in kW)
The centre of gravity for a solid hemisphere about its diametral base having diameter 120 cm and is symmetric about y-axis is (in cm):
When a torque of 32.0 Nm is applied to a certain wheel, the wheel acquires an angular acceleration of 25.0 units. What is the rotational inertia of the wheel?
In a simple harmonic motion (SHM), the acceleration is proportional to:
The minimum value of angular momentum by coupling three angular momenta \(1\), \(\frac{3}{2}\) and \(\frac{5}{2}\) is:
If a particle has mass of 20 kg moves with an acceleration of \(2.5 \text{ m/s}^2\), then the magnitude of force acting on the particle is (in \(\text{kg}\cdot\text{m/s}^2\)):
A uniform cylinder of radius 10 cm and mass 20 kg is mounted so as to rotate freely about a horizontal axis that is parallel to and 5.0 cm from the central longitudinal axis of the cylinder. What is the rotational inertia of the cylinder about the axis of rotation?
The Born's approximation is applicable for:
Harmonic oscillator potential is:
Which of the following has the highest specific heat capacity?
A ball of mass 0.1 kg, initially at rest, is dropped from height of 1 m. Ball hits the ground and bounces off the ground. Upon impact with the ground, the velocity reduces by 20%. The height (in m) to which the ball will rise is:
The polar moment of inertia of a circular plane of diameter about its centroid is (in \(\text{cm}^4\)):
The following are the centroidal coordinates of semicircular plane of \(16\pi\) cm diameter and is symmetric about \(x\)-axis.
The second-order correction to the energy of the ground state is always:
The ground state energy of the Hydrogen atom is approximately: