Question Paper ECE PGECET

Can you provide me the previous years question paper of PGECET (Post Graduation Engineering Common Entrance Test) for ECE (Electronics & Communication Engineering)?

[Arun Vats]

Andhra Pradesh Post Graduation Engineering Common Entrance Test (PGECET) exam is conducted by the AP Board of Higher Education on behalf of Government of AP.

Below I am providing you some questions of from question paper of PGECET (Post Graduation Engineering Common Entrance Test) for ECE (Electronics & Communication Engineering)

Electronices Sample Questions :
Q-8 A circuit has a resistance of 11 W, a coil of inductive reactance 120 W, and a
capacitor with a 120-W reactance, all connected in series with a 110-V, 60-Hz power
source. What is the potential difference across each circuit element?
A) (a) VR = 110 V, (b) VL = VC = 1.2 Kv
B) (a) VR = 120 V, (b) VL = VC = 2.4 kV
C) (a) VR = 4.8 V, (b) VL = VC = 0 kV
D) (a) VR = 5.0 V, (b) VL = VC = 8.0 V
Q-2 Applying DeMorgan's theorem to the expression , we get
A) (A+B)+C
B) A(B + C)
C) Both A & B
D) None of above
Q-4 Refer Below figure to Determine the resonant frequency…
A) 123.4 kHz
B) 61.7 kHz
C) 45.97 kHz
D) 23.1 kHz
Q-4 Express the decimal number 57 in binary.
A) 100101
B) 111010
C) 110010
D) 111001
A D V E R T I S E M E N T
Q-5 A vertical electric dipole antenna
a) radiates uniformly in all directions.
b) radiates uniformly in all horizontal directions, but more strongly in the vertical
direction.
c) radiates most strongly and uniformly in the horizontal directions
d) does not radiate in the horizontal directions


Q-6 A particle oscillates according to the equation y=5.0 cos 23 t, where y is in
centimeters. Find its frequency of oscillation and its position at t=0.15 s.
a) f = 23 Hz, y = -4.8 cm
B) f = 3.7 Hz, y = -5.0 cm
C) f = 3.7 Hz, y = -4.8 cm
D) f = 3.7 Hz, y = +4.8 cm
Q-7 A 10.0-µF capacitor is in series with a 40.0-W resistance, and the combination is
connected to a 110-V, 60.0-Hz line. Calculate (a) the capacitive reactance, (b) the
impedance of the circuit, (c) the current in the circuit, (d) the phase angle between current
and supply voltage
A) (a) 0.0038W (b) 305W (c) 0.415 A (d) voltage lags by 8.58°
B) (a) 266W (b) 269W (c) 0.409 A (d) voltage lags by 81.4°
C) (a) 16 kW (b) 72 kW (c) 2.75 A (d) voltage lags by 6.63°
D) (a) 2.6 kW (b) 262W (c) 0.256 MA (d) voltage leads by 81.4°
Q-8 A circuit has a resistance of 11 W, a coil of inductive reactance 120 W, and a
capacitor with a 120-W reactance, all connected in series with a 110-V, 60-Hz power
source. What is the potential difference across each circuit element?
A) (a) VR = 110 V, (b) VL = VC = 1.2 Kv
B) (a) VR = 120 V, (b) VL = VC = 2.4 kV
C) (a) VR = 4.8 V, (b) VL = VC = 0 kV
D) (a) VR = 5.0 V, (b) VL = VC = 8.0 V
Q-9 What is the primary function of multiplexing?
A ) To match the frequency range of a signal to a particular channel.
B ) To reduce the bandwidth of a signal.
C ) To select one radio channel from a wide range of transmitted channels. D ) To allow a number of signals to make use of a single communications channel.
Q-10 A second step to further increase system capacity is a digital access method called
TDMA (Time Division Multiple Access). Using the same frequency channelization and
reuse as FDMA analog but adding a time sharing element, the effective capacity is:
A) Doubled
B) Tripled
C) Reduced by one third
D) Unchanged
Q-11 What are Pseudo-Random noise sequences, or P/N Sequences?
A) P/N Sequences are known sequences which exhibit the properties or chracteristics of


random sequences
B) P/N Sequences can be used to logically isolate users on the same physical (frequency)
channel
C) P/N Sequences appear as random noise to everyone else, except to the transmitter and
intended receiver
D) All of the above
Q-12 An op-amp integrator has a square-wave input. The output should be
A ) a sine wave.
B) a triangle wave
C) a square wave.
D) pure DC.
Q-13 What is the relationship between the series and parallel resonant frequencies of a
quartz crystal?
A) They are equal.
B) Parallel resonant frequency is approximately 1 kHz higher than series resonant
frequency
C) Series resonant frequency is approximately 1 kHz higher than parallel resonant
frequency.
D) none of the above
Q-14 Refer Below figure to Determine the resonant frequency…
A) 123.4 kHz
B) 61.7 kHz
C) 45.97 kHz
D) 23.1 kHz
Q-15 Which FET amplifier(s) has (have) a phase inversion between input and output
signals?
A) common-gate
B) common-drain
C) common-source
D) all of the above

Hey, I am looking for the ECE PGECET sample paper will you provide me the sample paper of the M.Tech ECE PGECET entrance exam ?

[Arun Vats]

As you want I am here providing you sample paper of the M.Tech ECE PGECET entrance exam.

Sample paper :

1 A digital-to-analog converter with a full-scale output voltage of 3.5 V has a resolution close to 14m V. Its bit size is

2 A single-phase half-controlled rectifier is driving a separately excited dc motor. The dc motor has a back emf constant of 0.5 V/rpm. The armature current is 5 A without any ripple. The armature resistance is 2W. The converter is working from a 280 V, single phase ac source with a firing angle of 80°. Under this operating condition, the speed of the motor will be

4 A parallel plate air-filled capacitor has plate area of l0-4 m2 and plate separation of 10-3 m. It is connected to a 0.5 V, 3.6 GHz source. The magnitude of the displacement current is (e0 = 1/36p x 10-9 F/m)

5 The 8085 assembly language instruction that stores the content of H and L registers into the memory locations 2050H and 2051H, respectively, is



7 The insulation strength of an EHV transmission line is mainly governed by

The Q - meter works on the principle of


9 A 800 kV transmission line is having per phase line inductance of 1.1 mH/km and per phase line capacitance of 11.68 nF/km. Ignoring the length of the line, its ideal power transfer capability in MW is


10 In a PCM system, if the code word length is increased from 6 to 8 bits, the signal to quantization noise ratio improves by the factor


11 At an industrial sub-station with a 4 MW load, a capacitor of 2 MVAR is installed to maintain the load power factor at 0.97 lagging. If the capacitor goes out of serivce, the load power factor becomes
A) 0.85 B) 1.00 C) 0.80 lag
D) 0.90 lag
Answer : (C)

12 The conduction loss versus device current characteristic of a power MOSFET is best approximated by
A) a parabola B) a straight line C) a rectangular hyperbola D) an exponentially decaying function
Answer : (A)

13 High Voltage DC (HVDC) transmission is mainly used for
A) bulk power transmission over very long distances B) inter-connecting two systems with the same nominal frequency C) eliminating reactive power requirement in the operation D) minimizing harmonics at the converter stations
Answer : (A)

14 For the equation, s3 - 4s2+ s + 6 = 0 the number of roots in the left half of s-plane will be
A) 0 B) 1 C) 2 D) 3
Answer : (C)

15 For the function f(x) = x2 e-x, the maximum occurs when x is equal to
A) 2 B) 1 C) 0 D) -1
Answer : (B)