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BARC -2018 EE: Mini Mock 3

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Question 1

The voltage regulation of an auto-transformer is superior than that of a 2-winding transformer. It is because:

Question 2

For the given rectifier circuit, determine the value of ωt at which the gate signal should be applied to produce an average output voltage of 60 V from a 160 Vrms ac source.

Question 3

The signal x(t) and h(t) shown in the figures are convolved to yield y(t).

Which one of the following figures represent the output y(t).

Question 4

In an inverting OP–AMP, the input bias current is -1μA, and the input and the feedback resistances are both 1MΩ. What will be the output voltage for an input voltage of 2.5V?

Question 5

In a transmission line each conductor is at 20 kV and is supported by a string of 3 suspension insulators. The air capacitance between each cap pin junction and tower is one fifth of the capacitance of each insulator unit. A guard ring, effective only over the line end insulator unit is fitted so that the voltages on the two units nearest the line end are equal. The voltage on the line end unit is ------ kV.

Question 6

A Direct Form Implementation of an LTI system with is shown in figure

The value of a_o,a₁ & a₂ are respectively

Question 7

The equivalent rotor resistance, r₂’ components in the equivalent circuit of a single-phase induction motor, based on two-revolving field theory, at any slip, s are

Question 8

The angle δ in the swing equation of a synchronous generator is the

Question 9

A high Gain and Directivity Op-Amp has R_f = 10⁵ ohms and R, = 10³ ohms. The correct statement is:

Question 10

In transformer parallel operations, which among the following is incorrect?

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ESE & GATE EE General

Feb 7ESE & GATE EE