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BHEL ET 2019: Technical Quiz 9

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Question 1

Find the correct logic equation for output variable Y from the state table Z?

Question 2

Select the correct output (V0) wave-shape for a given input (V1) in the clamping network given below.

Question 3

The open-loop transfer function of a unity feedback system is The gain K that results in a phase margin of 45o is

Question 4

In three poles amplifier, extreme phase shift is:

Question 5

Consider the following expression:
 
The simplification of this by using theorems of Boolean algebra will be

Question 6

Which is correct in case of NOR gate?

Question 7

What is the value for the total charge enclosed in an incremental volume of 10-9 m3 located at the origin if ?

Question 8

The unit vector extending from origin toward the point G(2, -2. -1) is

Question 9

In a parallel circuit having two branches, the current in one branch is I1 = 100 ± 2 A and in the other is I2 = 200 ± 5 A. Considering errors in both I1 and I2 as limiting errors, the total current will be

Question 10

In an AC Bridge circuit, determine the constants of unknown arm, if , , with ?

Question 11

In a linear circuit shown, find an expression for voltage v(t)?

Question 12

The ratio between voltages and number of turns on two windings is correctly represented as:

Question 13

Consider the following types of transmission lines:
1) Open-wire line
2) Twin-lead wire
3) Coaxial cable
The capacitance per meter will be least in which of the above transmission lines?

Question 14

To equalize the sending and receiving end voltages, impedance is connected at the receiving end of a transmission line having the following ABCD parameters

The impedance so connected would be

Question 15

The ig – vg characteristics of a thyristor is a straight line passing through origin with a gradient cl 2.5 × 103. If Pg = 0.015 watt, the value of gate voltage will be nearly
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Aug 14ESE & GATE EE