Electrical Circuit Practice Quiz 06

Electrical Circuit Practice Quiz 06

Welcome to ECE Board Exam Practice Quiz for Electrical Circuit. This set of practice quiz 6 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.
  • The correct answer will be reveal after you have chosen your answer for every questions
  • There is no time limit, answer the questions at your own pace.
  • 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.
  • Comment us your thoughts, scores, ratings, and questions about the quiz in the comments section below!

Choose the letter of the best answer in each questions.

An electric circuit contains
Passive elements
Active elements
Both active and passive elements
Reactive elements

Correct!

Wrong!

If an emf in circuit A produces a current in circuit B, then the same emf in circuit B produces the same current in circuit A. this theorem is known as
Maximum power transfer theorem
Millman’s theorem
Reciprocity theorem
Norton’s theorem

Correct!

Wrong!

A series-parallel combination of identical resistors will
Increase the power rating compared with one resistor alone
Increase the voltage rating compared with one resistor alone
Reduce the voltage rating compared with resistor alone
Result in an expensive circuit

Correct!

Wrong!

Which of the following dielectric materials makes the highest-capacitance capacitor?
Air
Barium-strontium titanite
Mica
Electrolyte

Correct!

Wrong!

In a series circuit with unequal resistances the
Highest R has the highest V
Lowest R has the highest V
Lowest R has the highest I
Highest R has the highest I

Correct!

Wrong!

A real current source has
Infinite internal resistance
Zero internal resistance
Large internal resistance
Small internal resistance

Correct!

Wrong!

What value of R is needed with a 0.05 μF C for an RC time constant of 0.02 s?
400 Ω
400 MΩ
400 GΩ
400 kΩ

Correct!

Wrong!

The admittance of a parallel RLC circuit is found to be the ______ sum of conductance and susceptances.
Algebraic
Arithmetic
Vector
Phasor

Correct!

Wrong!

A capacitor opposes change in
Voltage
Current
Voltage and current
Neither voltage nor current

Correct!

Wrong!

An open resistor when checked with an ohmmeter reads
Zero
Infinite
High but within the tolerance
Low but not zero

Correct!

Wrong!

Which statement is true about a passive circuit?
A circuit with neither a source of current nor a source of potential difference
A circuit with a voltage source
A circuit with a current source
A circuit with only resistance as a load

Correct!

Wrong!

A rheostat is a form of
Variable resistor
Variable capacitor
Potentiometer
Thermocouple

Correct!

Wrong!

Electric energy refers to
Volt divided by coulomb
Volt-ampere
Volt-coulomb
Watt divided by time

Correct!

Wrong!

The reason why alternating current can induce voltage is
It has high peak value
It has a stronger magnetic field than direct current
It has a constant magnetic field
It has a varying magnetic field

Correct!

Wrong!

An inductive circuit of resistance 16.5 Ω and inductance of 0.14 H takes a current of 25 A. if the frequency is 50 Hz, find the supply voltage.
1501 V
1174 V
1877 V
991 V

Correct!

Wrong!

For parallel 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!

Which of the following is not a factor affecting capacitance of a basic capacitor?
Area of plates
Number of plates
Distance between plates
Dielectric material used

Correct!

Wrong!

Which of the following describes the action of a capacitor?
Stores electrical energy
Opposes changes in current flow
Creates a dc resistance
Converts ac to dc

Correct!

Wrong!

When two pure sine waves of the same frequency and the same amplitude which are exactly 180˚ out-of-phase are added together, the result is
A wave with twice the amplitude
A wave with half the amplitude
Zero signal
A wave with twice the frequency

Correct!

Wrong!

The ratio of maximum value to the effective value of an alternating quantity is called
Form factor
Peak factor
Dynamic factor
Leakage factor

Correct!

Wrong!

The ratio of the flux density to the electric field intensity in the dielectric is called
Permittivity
Field intensity
Permeability
Elasticity

Correct!

Wrong!

Series resonant circuit is sometimes known as
Rejector circuit
Acceptor circuit
Inductive circuit
Capacitive circuit

Correct!

Wrong!

The Q-factor of a parallel resonant circuit is also known as
Current magnification factor
Voltage magnification factor
Load factor
Leakage factor

Correct!

Wrong!

What is the form factor of a triangular wave?
1.16
1.11
1.73
1.41

Correct!

Wrong!

The internal resistance of an ideal voltage source is
Infinite
Equal to the load resistance
Zero
To be determined

Correct!

Wrong!

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Electrical Circuit – Quiz 06

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