# Electrical engineering-Network Theory Set/3 Sample Test,Sample questions

1.0.57

2.0.318

3.1.414

4.1.57

## Question: ``` At Î¸=Ï€/2, positive portion is __________ negative portion in power cycle. ```

1.greater than

2. less than

3.equal to

4.greater than or equal to

## Question: ``` In inductor, the energy delivered by source is ____________ by inductor. ```

1.stored as magnetic field

2.dissipated in the form of heat

3.returned to source

4.stored as electric field

1.37.68 Î¼H

2. 47.68 Î¼H

3.113.04 Î¼H

4.120.58 Î¼H

1.1 W

2.0.5 W

3.0.333 W

4.0.111 W

## Question: ```A network contains linear resistors and ideal voltage source s. If values of all the resistors are doubled, then voltage across each resistor is __________ ```

1.Halved

2.Doubled

3.Increases by 2 times

4.Remains same

1.0

2.24.14 A

3. 10 A

4.14.14 A

## Question: ```Among the following, the active element of electrical circuit is ____________ ```

1.Voltage source

2.Current source

3. Resistance

4.Voltage and current source both

## Question: ```Average power is also called? ```

1.apparent power

2.reactive power

3.true power

4.instantaneous power

1.98 W, 18 W

2.166 W, 18 W

3.450 W, 2 W

4.166 W, 2 W

## Question: ```Consider an electric motor having resistance of 10 Î©, 20 Î© and 30 Î© respectively. The percentage of energy dissipated by 10 Î© earthing plate is ____________ ```

1.More than 50% of total energy

2.Less than 50% of total energy

3.Depends on the materials of the three plates

4.May be more or less than 50% of total energy

1.30 H

2.24 H

3.9 H

4.4.5 H

## Question: ```For a practical voltage source, which of the following is correct? ```

1.Cannot be less than source voltage

2.Cannot be higher than source voltage

3.Is always less than source voltage

4.Is always equal to source voltage

1.3.6 J

2.2.5 J

3.1.5 J

4.3 J

1.10 â„¦

2.20 â„¦

3. 1 â„¦

1.0

2. 1

3.2

4.3

1.0.5 R

2.0.25 R

3.0.125 R

4. 0.0625 R

1.325 mH

2. 255 mH

3.625 mH

4.550 mH

## Question: ```If a circuit has complex impedance, the average power is ______ ```

1.power stored in inductor only

2.power stored in capacitor only

3.power dissipated in resistor only

4.power stored in inductor and power dissipated in resistor

1.M-2

2.M-1

3.M

4.M+1

## Question: ```If there is complex impedance in a circuit, part of energy is ____________ by reactive part and part of its energy is ____________ by the resistance. ```

1.alternately stored and returned, alternately stored and returned

2.alternately stored and returned, dissipated

3.dissipated, alternately stored and returned

4.dissipated, dissipated

## Question: ```If we apply a sinusoidal input to RL circuit, the current in the circuit is __________ and the voltage across the elements is _______________ ```

1.square, square

2.square, sinusoid

3.sinusoid, square

4.sinusoid, sinusoid

1.true power

2.apparent power

3.average power

4.reactive power

## Question: ```Impedance is a complex quantity having the real part as _______ and the imaginary part as ______ ```

1.resistance, resistance

2.resistance, reactance

3.reactance, resistance

4.reactance, reactance

## Question: ```In capacitor, the energy delivered by source is ____________ by capacitor. ```

1.returned to source

2.dissipated in the form of heat

3. stored as electric field

4. stored as magnetic field

1.4

2.3

3.2

4.1

## Question: ```In purely resistive circuit, energy delivered by source is ____________ by resistance. ```

1.dissipated in the form of heat

2.stored as electric field

3. stored as magnetic field

4.returned to source

## Question: ```In Reciprocity Theorem, which of the following ratios is considered? ```

1.Voltage to current

2.Current to current

3.Voltage to voltage

4.No ratio is considered

1.Shorted

2.Removed

3.Undisturbed

4. Opened

## Question: ```Instantaneous power is negative, when the polarities of voltage and current are of __________ ```

1.opposite sign

2.same sign

3.voltage is zero

4.current is zero

1.0 V

2.100 V

3.200 V

4.250 V

## Question: ```Reactive power is expressed in? ```

1.Watts (W)

2.Volt Amperes Reactive (VAR)

3.Volt Ampere (VA)

4. No units

## Question: ```The basic elements of an electric circuit are _____________ ```

1.R, L and C

2.Voltage

3. Current

4.Voltage as well as current

1.36 C

2.60 C

3.72 C

4.50 C

1.1.49 J

2.0.49 J

3.0.1 J

4.1 J

1.0

2.1

3.1.11

4. 1.15

1.1

2.2

3.3

4.4

## Question: ```The linear circuit element among the following is ___________ ```

1.Capacitor

2.Inductor

3.Resistor

4.Capacitor & Inductor

1.LC

2.RC

3.RL

4.RLC

## Question: ```The power factor is the ratio of ________ power to the ______ power. ```

1.average, apparent

2.apparent, reactive

3.reactive, average

4.apparent, average

1.sinÎ¸

2.cosÎ¸

3.tanÎ¸

4.secÎ¸

## Question: ```The Reciprocity Theorem is applicable for __________ ```

1.Single-source networks

2.Multi-source networks

3.Both Single and Multi-source networks

4.Neither Single nor Multi-source networks

## Question: ```The Reciprocity Theorem is valid for ___________ ```

1.Non-Linear Time Invariant circuits

2.Linear Time Invariant circuits

3.Non-Linear Time Variant circuits

4. Linear Time Variant circuits

1.70.7 A

2.141.4 A

3.150 A

4.282.8 A

1.1.5 â„¦

2.1.67 â„¦

3.3 â„¦

4. 4.5 â„¦

## Question: ```The Superposition Theorem is not applicable for _________ ```

1.Power calculation

2.Voltage calculation

3.Current Calculation

4.Both Voltage and Current calculation

## Question: ```The temperature coefficient of a metal as the temperature increases will ____________ ```

1.Decreases

2.Increases

3.Remains unchanged

4.Increases and remains same

1.RLC

2.RC

3.RL

4.LC

1.equal to

2.twice

3.thrice

4.four times

## Question: ```The two windings of a transformer have an inductor of 2 H each. If mutual inductor between them is also 2 H, then which of the following is correct? ```

1.Turns ratio of the transformer is also 2

2. Transformer is an ideal transformer

3.It is a perfect transformer

4.It is a perfect as well as an ideal transformer

## More MCQS

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