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AE 2019 || Day 38 || Combined Syllabus Quiz 2

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Question 1

The effect of reduction in effective base width due to increase in reverse voltage of BJT is

Question 2

In the Wien bridge oscillator, the phase-shift is met by using lead-lag network and by using

Question 3

For a Type-2 system, the steady-state errors for unit step and unit ramp input are

Question 4

The magnitude and phase relationship between the sinusoidal input and the steady-state output of a system is called as

Question 5

Add 8 and 9 in BCD code

Question 6

Convert the binary number 11000110 to Gray code

Question 7

Which among the following A.C. bridges are used for precise measurements?

Question 8

The expression for Quality factor in Maxwell’s bridge will be:

Question 9

Two capacitance, C1 = 150 ± 2.4 μF and C2 = 120 ± 1.5 μF are connected in parallel. What is the limiting error of the resultant capacitance C?

Question 10

A supply of 250 V, 50 Hz is applied to a series RC circuit. If the power absorbed by the resistor be 400 W at 160 V, the value of the capacitor C will be nearly

Question 11

Consider the following equations:
V1 = 6V2 – 4I2
I1 = 7V2 – 2I2
A, B, C and D parameters are

Question 12

In a series RC circuit, the values of R = 10 Ω and C = 25 nF A. sinusoidal voltage of 50 MHZ is applied and the maximum voltage across the capacitance is 2.5 V. The maximum voltage across the series combination will be nearly

Question 13

A 50 Hz sinusoidal voltage V = 311 sin ωt is applied to an RL series circuit. If the magnitude of resistance is 5 Ω and that of the inductance is 0.02 H, the r.m.s. value of the steady-state current and the relative phase angle are nearly

Question 14

Which one of the following faults occur more frequently in a power system?

Question 15

Identify the type of transformers used in the figure

Question 16

For an extra-high voltage overhead trans-mission line, four conductors are used per phase (in a bundle) at the corners of a square of side ‘s’ metre. The GMR (Geometric Mean Radius) of each conductor is r’m metre.

Question 17

In a single phase diode bridge rectifier with ripple free load current supplies an inductive loaD. What will be the current waveform at ac side?

Question 18

In a Single-phase semi converter bridge with R-L-E Load, the purpose of freewheeling diode is to:

Question 19

A 500 kVA transformer has an efficiency of 95% at full load and also at 60% of full load, both at upf. The efficiency η of the transformer at 3/4th full load at upf will be nearly

Question 20

What is the useful flux per pole on no load of a 250V, 6 pole shunt motor having a wave connected armature winding with 110 turns, armature resistance of 0.2 Ω and armature current 13.3 A at no load speed of 908 rpm?
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Nov 10ESE & GATE EE