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

The \(a_{ij}\) is the ___ of the branch directed from node \(x_i\) to \(x_j\) in signal flow graph. (Note: The blank is after "is the". Assuming it asks what \(a_{ij}\) represents.)

In priority encoder, if two or more inputs are equal to ____ will take highest priority

The n stage Johnson counter will produce a modulus of

For n inputs, k product terms and m outputs, the internal logic of the PLA consists of

The decoder used in 32 x 8 ROM is

The characteristic equation of SR flip-flop is

Convert a decimal number 3509.14453125 into a hexadecimal number

An n-to-m line decoder is used to generate (Note: "n-to-m line decoder" where \(m = 2^n\))

The values of the segments 'abcdefg' of seven segment display for the BCD input of '0101'? (Assuming standard segment labeling: a-top, b-top-right, c-bottom-right, d-bottom, e-bottom-left, f-top-left, g-middle. And BCD '0101' is decimal 5.)

Quantization error in ADC is due to

Simplify \( AB + A\bar{C} + \overline{A}BC(AB+C) \)

The 8-to-3 encoder is also called

If the input to an OP-AMP comparator is a sine wave, then the output is a

A 'Class A' Common Emitter amplifier with \(V_{CC} = 20 \text{ V}\) draws a current I = 5A and feed a load of \(40\Omega\) through a step-up transformer N2/N1=3.16. Find the efficiency of the amplifier when it is properly matched for maximum power supply.

The cut off frequency of the following fourth order filter is

Wein bridge oscillator is a

To eliminate cross over distortion in Class B power amplifier, the circuit should have

Threshold voltage at the comparator of 555 timer is approximately

Identify the following circuit

Find the operating frequency of a transistor Hartley oscillator for \(L_1 = 20\mu\text{H}\), \(L_2 = 40\mu\text{H}\) and mutual inductance between coils is \(2\mu\text{H}\) and \(C = 1\mu\text{F}\).

Match the following

i–iv	Connection Type	a–d	Feedback Description
i	Voltage shunt	a	Current sampling, voltage mixing
ii	Voltage series	b	Current sampling, current mixing
iii	Current shunt	c	Voltage sampling, current mixing
iv	Current series	d	Voltage sampling, voltage mixing

When the negative feedback is applied to an amplifier of gain 100, the overall gain falls to 50. If the same feedback factor is maintained, the value of the amplifier gain required for the overall gain of 75 is