List of top Questions asked in AP PGECET

The absolute humidity of air at 101.325 kPa is measured to be 0.02 kg of water per kg of dry air. Then the partial pressure of water vapour in the air is:
The minimum amount of work required to operate a refrigerator which removes 1000 Cal heat at $0^\circ$C and rejects at $50^\circ$C will be:
The entropy of single crystalline Silicon at absolute zero will be:
Which statement about entropy is incorrect?
If the vapour pressure at two temperatures of a solid phase in equilibrium with its liquid phase is known, then the latent heat of fusion can be calculated by the:
The theoretical minimum work required to separate one mole of a liquid mixture at 1 atm, containing 50 mole % each of n-heptane and n-octane into pure compounds, each at 1 atm, is:
Design an approach to estimate the activity coefficient of a component in a non-ideal liquid mixture:
1 mole of Argon gas is heated at constant pressure from 200 K to 600 K.
If \( C_p = 4\ \text{cal} \cdot \text{deg}^{-1} \cdot \text{mol}^{-1} \), then the change in entropy will be:
(Given \( \ln 3 = 1.09 \))
The change in enthalpy of a system is related to the heat absorbed at a:
Why is the equilibrium constant (K) temperature-dependent?
A balanced delta connected load of \( (8 + j6) \Omega \) per phase is connected to a 400 V, 50 Hz, three-phase supply lines. If the input power factor is to be improved to 0.9 by connecting a bank of star-connected capacitors, the required kVAR of the bank is _______.

Digital signatures provide ________.
 

A number is selected randomly from each of the following two sets:
{1, 2, 3, 4, 5, 6, 7, 8}, {2, 3, 4, 5, 6, 7, 8, 9}
What is the probability that the sum of the numbers is 9?
The ratio of the ages of A and B is 5:3. After 6 years, their ages will be in the ratio 6:4. What is the current age of A?
________ function is performed by data input/capture subsystem of GIS.
Consider the system of equations:
\[ x + 2y - z = 3 \\ 2x + 4y - 2z = 7 \\ 3x + 6y - 3z = 9 \]
Which of the following statements is true about the system?
The multiple access method used in Global Positioning Systems is ________.
National Remote Sensing Day is celebrated on ________ every year.
SDI stands for
Suppose \( R_1 \) and \( R_2 \) are reflexive relations on a set \( A \). Which of the following statements is correct?
Determine the value of $\lambda$ and $\mu$ for which the system of equations
$x + 2y + z = 6$,
$x + 4y + 3z = 10$,
$2x + 4y + \lambda z = \mu$
has a unique solution.

For a two-port network to be reciprocal, it is necessary that ……..

Which strategy can be used to minimize the shear damage in bioreactors used for animal cell culture?
Let \( z \) be a complex variable and \( C : |z| = 3 \) be a circle in the complex plane. Then,
\[ \oint_C \frac{z^2}{(z - 1)^2(z + 2)} \, dz = \]
If \( \vec{F}(x, y, z) = 3x^2y\,\hat{i} + 5y^2z\,\hat{j} - 8xyz\,\hat{k} \) is a continuously differentiable vector field, then the curl of \( \vec{F} \) at (1,1,1) is ...............