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

The depletion mode MOSFET is also known as

The Op-Amp circuit shown below is a (an)

An analog transducer has a resolution of 0.01%. Calculate the number of bits required for A/D conversion.

The base current of CE transistor in active region is 15 μA, find \( V_{CE} \), assuming \( \beta = 150 \), \( R_C = 2~k\Omega \) and \( V_{CC} = 12~V \).

The V-I characteristic of a FET is shown below. For small signal amplification the device should be biased in the region

If an inverting Op-Amp with \( R_f = 50~k\Omega \) and \( R = 200~k\Omega \) is reconfigured as non-inverting Op-Amp, then its voltage gain is

Match the following quantities of mechanical transducer with their operation: \begin{tabular}{ll} (a) Manometer & (i) Force to displacement
(b) Hydrometer & (ii) Velocity to pressure
(c) Accelerometer & (iii) Specific gravity to displacement
(d) Load cell & (iv) Pressure to displacement
\end{tabular

The output of an LVDT is ±2 mV when core moves through a distance of 0.5 mm. The sensitivity is:

With fixed dimensions of Cathode Ray Tube (C.R.T), the ratio of electrostatic deflection sensitivity to magnetic deflection sensitivity, if the accelerating voltage is 10 kV, is:

If \( I_p, I_m, I_s \) are magnetising, primary and secondary currents of current transformer, then approximate phase angle \( \theta \) in degrees between \( I_p \) and reversed \( I_s \) is:

A 4½ digit digital voltmeter would display a reading of 0.6794 V in 10 V range as:

A dc ammeter has a multiplication factor of 8 and its shunt current is 17.5 A, then the current through ammeter is:

A 50 V reading in a 0 – 150 V range Voltmeter has an error of 1.25 V. Find the % error of full-scale reading.

A 200 V, 50 Hz, 1-phase energy meter makes 960 revolutions to supply a load of 0.8 pf for 2 hrs. If motor constant is 160 rev/kWh, then load current is:

The following statements refer to the pole-zero configuration for compensator networks: I. In lag network, pole is nearer to origin
II. In lag network, zero is nearer to origin
III. In lead network, zero is nearer to origin
IV. In lead network, pole is nearer to origin
Choose the correct combination:

Choose the correct combination of the following: (a) At break-away point the root locus breaks from real axis into complex plane
(b) At break-away point the root locus breaks from imaginary axis into complex plane
(c) At break-in point the root locus enters the real axis from the complex plane
(d) At break-in point the root locus enters the imaginary axis from the complex plane

A state-space system is given by \[ \dot{x} = \begin{bmatrix}1 & -2 \\ 3 & -4\end{bmatrix}x + \begin{bmatrix}1 \\ 0\end{bmatrix}u, \quad y = \begin{bmatrix}1 & 2\end{bmatrix}x \] The controllability matrix [CM] is

The transfer function of the following system is

Find the frequency of sustained oscillations for the following system when \( K = 48 \): \[ G(s)H(s) = \frac{K}{s(s^2 + 7s + 4)} \]

Find gain of the following open loop system having phase cross-over frequency of 1.732 rad/sec. \[ G(s)H(s) = \frac{1}{s(1+s)} \]

The transfer function of the following signal flow graph is \( \frac{x_3(s)}{x_1(s)} \):

The transfer function of an RLC series circuit when input voltage is fed to \( R, L \) and output voltage is across \( C \) is:

The value of \( k \), where root locus cuts the jω axis in plotting root locus, is calculated by

For the given transfer function \( G(s) = \frac{5(s+4)}{(1+4s)(1+0.25s)} \), for large values of \( \omega \), the slope of the transfer function on the Bode plot is