List of top Questions asked in Telangana State Post Graduate Engineering Common Entrance Test

One of the following is used as a key ingredient in hair conditioning product
What temperature ranges are typically used to destroy Pyrogens in Parenterals?
Clark's formula………
Aerosol container must withstand pressures as high as 140–180 psi at ………
The array factor of an N element linear uniform array is \newline (\(\Psi = \beta d \cos\theta + \alpha\), \(\beta = \frac{2\pi}{\lambda}\), d = spacing between elements and \(\alpha\) = inter element phase shift)
In lossless medium for which \( \eta = 60\pi \), \( \mu_r = 1 \) and \( H = -0.1\cos(\omega t - z) \hat{a}_x + 0.5\sin(\omega t - z) \hat{a}_y \text{ A/m} \), calculate \(\omega\).
Increase in the solubility of the aqueous systems by adding large amount of additives is known as.........
Which factor determines the range resolution of a radar?
A wave travelling in conducting medium, if its amplitude decreases by a factor of _____ it is called penetration depth of the medium.
If a small single-turn loop antenna has a radiation resistance of 0.04 \(\Omega\), how many turns are needed to produce a radiation resistance of 1 \(\Omega\)?
A loop is rotating about the y-axis in a magnetic field \( B = B_0 \sin \omega t \ \hat{a}_z \text{ Wb/m}^2 \). The voltage induced in the loop is due to (Note: \(\hat{a}_z\) means the B field is in the z-direction. The loop rotates about y-axis.)
The Maxwell's equation \( \oint \vec{E} \cdot d\vec{l} \) is equal to
Flat-top sampling leads to
Which one of the following is not true of a lossless line?
Which of the following function does not satisfy the wave equation?
According to Parseval's theorem the energy spectral density curve is equal to the area under (The question is phrased a bit oddly. "energy spectral density curve is equal to the area under..." Parseval's theorem relates energy in time domain to energy in frequency domain. The area under the Energy Spectral Density (ESD) curve *is* the total energy.)
If in a rectangular waveguide for which \(a=2b\), the cutoff frequency for TE\(_{01}\) mode is 12 GHz, the cutoff frequency for TM\(_{11}\) is
The input to a matched filter is given by \( S(t) = 10 \sin(2\pi \times 10^6 t), 0<t<1 \) second. The peak amplitude of the filter output is (Note: The duration \(0<t<1\) second is very long for a 1 MHz signal. This implies many cycles. Energy of the signal will be large.)
In delta modulation (DM) system, the granular noise occurs when the modulating signal
The number of bits per sample in a PCM system with sinusoidal input is increased from n to n+1. The improvement in signal to quantization noise ratio will be
As the bandwidth approaches infinity, the channel capacity becomes (Referring to Shannon-Hartley theorem: \(C = B \log_2(1 + S/N)\))
Which one of the following is true?
Which of the following modulation scheme gives the maximum probability of error?
Which of the following is incorrect? (Assuming H refers to Entropy in Information Theory)
The image channel rejection in superheterodyne receiver comes from