Welcome to ECE Board Exam Practice Quiz for Electrical Circuit. This set of practice quiz 3 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:
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- The correct answer will be reveal after you have chosen your answer for every questions
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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.
PREVIOUS: Electrical Circuit Practice Quiz 02
What is the resonant frequency of a circuit when L of 25 microhenrys and C of 10 picofarads are in parallel?
10.1 kHz
10.1 MHz
101 MHz
101 kHz
Correct!
Wrong!
Which of the following is the most popular waveform?
Sinusoidal
Square wave
Triangular
Sawtooth
Correct!
Wrong!
An inductance of 1 mH is
0.001 H
0.01 H
0.0001 H
0.10 H
Correct!
Wrong!
The reason why electrical appliances are connected in parallel.
It is a simple circuit
This makes the operation of appliances independent with each other
This results in reduced power consumption
All of these
Correct!
Wrong!
Which of the following elements is active?
Resistor
Inductor
Capacitor
Ideal voltage source
Correct!
Wrong!
For a series circuit, the higher the quality factor
The greater the bandwidth
The narrower the passband
The broader the resonance curve
The wider the passband
Correct!
Wrong!
A trigger circuit consisting of a capacitor of 0.01 μF is connected in series with a resistor. If the circuit requires 100 Vdc to operate, determine the value of the resistor when time constant is 0.009 s.
900 Ω
900 kΩ
900 MΩ
900 GΩ
Correct!
Wrong!
In an RL series circuit,
Current lags voltage by less than 90˚
Current lags voltage by 180˚
Current lags voltage by 90˚
Current leads voltage by 90˚
Correct!
Wrong!
Which component opposes voltage change?
Resistor
Inductor
Capacitor
Transistor
Correct!
Wrong!
Which of the following is not a factor affecting dielectric strength?
Mass
Moisture content
Temperature
Thickness
Correct!
Wrong!
Permeability is otherwise known as
Magnetic conductivity
Magnetic susceptibility
Electric conductivity
Electric susceptibility
Correct!
Wrong!
Effects of capacitance
It opposes any change in the amount of voltage
Voltage is lagged behind the current by a quarter cycle
Electric energy is stored in the capacitor in the form of electrostatic field
All of these
Correct!
Wrong!
At parallel resonance, the currents flowing through L and C are
Infinite
Zero
Unequal
Equal
Correct!
Wrong!
Which of the following is not considered a physical factor affecting resistance?
Length
Material type
Temperature
Cross-sectional
Correct!
Wrong!
In an inductive coil, the rate of rise of current is maximum
Near the final maximum value of current
At mid-value of current
At half-power points
After one time constant
Correct!
Wrong!
What refers to such work at very low temperatures, near absolute zero?
Cryogenics
Superconductivity
Subsonic
Thermionic
Correct!
Wrong!
The charge in the capacitor is stored at the
Terminals
Plates
Dielectric
Air
Correct!
Wrong!
The ohmic value of a resistor with negative temperature coefficient
Increases with increasing temperature
Increase with decreasing temperature
Stays unchanged with temperature change
Stays unaffected even with increasing temperature
Correct!
Wrong!
Loop currents should be assumed to flow in which direction
Straight
Clockwise
Counter-clockwise
Either Clockwise or Counter-clockwise
Correct!
Wrong!
The internal resistance of an ideal current source is
Infinite
Zero
Equal to the load resistance
To be determined
Correct!
Wrong!
Leakage resistance in a capacitor results into
Internal heating
Internal bleeding
Shorter useful life
Short-circuiting
Correct!
Wrong!
In an ac circuit with a resistive branch and an inductive branch in parallel, the
Voltage across the inductance leads the voltage across the resistance by 90°
Resistive branch current is 90° out of phase with the inductive branch current
Resistive and inductive branch currents have the same phase
Resistive and inductive branch currents are 180° out-of-phase
Correct!
Wrong!
A capacitance of 6 µµF means
6 pF
6 nF
6 fF
6 μF
Correct!
Wrong!
An alloy composed of 84 % copper, 12 % manganese and 4 % nickel.
Manganin
Constantan
Nichrome
German silver wire
Correct!
Wrong!
The unit of elastance is
Farad
Daraf
Siemen
Henry
Correct!
Wrong!
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Electrical Circuit – Quiz 03
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