Welcome to ECE Board Exam Practice Quiz for Electrical Circuit. This set of practice quiz 5 will test your competence on the theories, concepts and problem solving involving Electrical Circuit. The objectives and goals of this quiz is to help engineering students familiarize concepts and theories as well as develop problem solving skills when answering questions related to the Electrical Circuit.

Electrical Circuit Test Bank

In this section are compiled practice quiz for Electrical Circuit that could be able to enhance your knowledge and skills in your preparation for the ECE Board Exam. The goal is to add thousands of questions for you to be familiarized and hopefully help you to be prepared. I am looking forward that this practice quiz will give you an additional confidence in taking your upcoming Engineering Board Exam.

Guidelines:

Read and understand each question before choosing the best answer.

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Once all questions are answered, you will be shown your rating.

You have to get 70% of the total items to pass the quiz.

You can re-take the quiz as many times as you want or until you are satisfied of your rating.

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Choose the letter of the best answer in each questions.

What is the conductance of a circuit having three 10 Ω resistors in parallel?

0.3 S

3.33 S

0.33 S

30 S

Correct!

Wrong!

High resistance values are a consequence of the _______ of the film.

Thickness

Length

Thinness

Area

Correct!

Wrong!

According to Gauss theorem, flux can be equated to

Charge

Field intensity

Current

Voltage

Correct!

Wrong!

It is impossible to change the voltage across a capacitor instantly, as this would produce ________ current.

Infinite

Zero

Low

High

Correct!

Wrong!

Norton’s theorem is _________ Thevenin’s theorem.

The same as

The converse of

Older that

More accurate than

Correct!

Wrong!

For series capacitors, total charge is

The sum of individual charges

Equal to the charge of either capacitors

Equal to the product of the charges

The quotient of the charges

Correct!

Wrong!

When two unequal values of resistors are connected in parallel across a dc source, greater current flows through the

Higher resistance

Lower resistance

Higher wattage resistance

Lower wattage resistance

Correct!

Wrong!

In a rectangular wave, the form factor is

1.11

1.16

1.0

1.73

Correct!

Wrong!

The Q-factor of a series resonant circuit is also known as

Current magnification factor

Voltage magnification factor

Load factor

Leakage factor

Correct!

Wrong!

If two complex conjugates are added, ___________ components results.

In-phase

Quadrature

Complex

Out-of-phase

Correct!

Wrong!

Which of the following is the statement of Ohm’s law?

Electric current is directly proportional to both voltage and resistance

Electric current varies directly as the voltage and inversely as the resistance

Electrical power is directly proportional to the resistance and inversely as the current squared

Electrical power is directly proportional to both voltage squared and the resistance

Correct!

Wrong!

In a parallel bank with unequal branch resistances

The highest R has the highest I

The lowest R has the highest I

The lowest R has the lowest V

The highest R has the highest V

Correct!

Wrong!

What is the cross-sectional are of a conductor whose diameter is 0.001 inch?

One micron

One angstrom

One steradian

One circular mil

Correct!

Wrong!

Which waveform in which the rms value and the mean value are equal?

Square wave

Triangular wave

Sine wave

Sawtooth

Correct!

Wrong!

What is the total resistance of a two equal valued resistors in series?

The difference of both

The product of both

Twice as one

The sum of their reciprocals

Correct!

Wrong!

What is a closed path made of several branches of the network called?

Junction

Node

Terminal

Loop

Correct!

Wrong!

The _______ of an alternating quantity is defined as the fractional part of a period or cycle through which the quantity has advanced from selected origin.

Phase

Frequency

Amplitude

Waveform

Correct!

Wrong!

A wire of one kilometer length has a resistance of 20 Ω. If the length is halved, then the new resistance is ______ the original resistance.

Half

Twice

One-fourth

Three times

Correct!

Wrong!

Parallel resonant circuit is sometimes called as

Acceptor circuit

Rejector circuit

Inductive circuit

Capacitive circuit

Correct!

Wrong!

The potential gradient in a cable is maximum in

Conductor

Outer sheath

Insulation

Uniformly all over

Correct!

Wrong!

In a circuit, an active element is one which

Supplies energy

Receives energy

Both supplies and receives energy

Amplifies signal

Correct!

Wrong!

A capacitor requires 12 μC of charge to raise its potential of 3 V. What is the capacitance of the capacitor?

36 μF

15 μF

0.25 μF

4 μF

Correct!

Wrong!

Which of the following has a positive temperature coefficient?

Mica

Manganin

Silicon

Carbon

Correct!

Wrong!

When voltage is applied across a ceramic dielectric the electrostatic field produced is 50 times greater than air dielectric. The dielectric constant of ceramic therefore is

50

100

16.67

5

Correct!

Wrong!

What is the hot resistance of a 100 W, 220 V incandescent lamp?