Electronic Circuits Practice Quiz 03

Electronic Circuits Practice Quiz 03

Welcome to ECE Board Exam Practice Quiz for Electronic Circuits. This set of practice quiz 3 will test your competence on the theories, concepts and problem solving involving Electronic Circuits. 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 Electronic Circuits.

Electronic Circuits Test Bank

In this section are compiled practice quiz for Electronic Circuits 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.

The gain of an amplifier ________ when negative feedback is added.
Increases
Remains unchanged
Reduces
Becomes infinite

Correct!

Wrong!

An oscillator employs ________ feedback.
Positive
Negative
Both positive and negative
Neither positive nor negative

Correct!

Wrong!

Power amplifiers handle _______ signals.
Very small
Small
Large
Very large

Correct!

Wrong!

Transformer coupling is generally employed when load resistance is
Large
Very large
Small
Zero

Correct!

Wrong!

Increasing the overall Beta is an advantage of
Clap oscillator
Crystal oscillator
Darlington pair
CE amplifier

Correct!

Wrong!

Practically, the voltage gain of an amplifier is expressed
In volts unit
In dB unit
As an absolute value
As a whole number

Correct!

Wrong!

The frequency response of transformer coupling is
Good
Excellent
Poor
Very good

Correct!

Wrong!

What is the advantage of RC coupling scheme?
Good impedance matching
Economy
High efficiency
Simplicity

Correct!

Wrong!

Why is transformer coupling provides high frequency?
DC resistance is low
Collector voltage is stepped up
Collector voltage is stepped down
AC resistance is high

Correct!

Wrong!

If an amplifier has a power gain of 100, then its dB gain is
10
40
20
100

Correct!

Wrong!

Given three amplifiers with a gain of 10 and are connected in cascade. How much is the overall gain?
24
10,000
30
20

Correct!

Wrong!

What is the typical value of coupling capacitor Cc in RC coupling?
About 100 pF
About 0.1 µF
About 10 µF
About 0.01 µF

Correct!

Wrong!

To amplify dc signals, multistage amplifier uses what coupling?
RC
Direct
Transformer
Resistor

Correct!

Wrong!

A type of oscillator wherein the frequency is determined by the charge and discharge of resistor-capacitor networks used in conjunction with amplifiers or similar devices.
Sine wave oscillator
Beta generating circuit
Relaxation oscillator
Simply an oscillator

Correct!

Wrong!

Which of the following describes a common collector amplifier?
Low voltage gain
Low current gain
Low power gain
Low input resistance

Correct!

Wrong!

The final stage of an amplifier uses _______ coupling.
Direct
RC
Transformer
Impedance

Correct!

Wrong!

What class of operation is used for general amplification where no distortion can be tolerated?
Class A
Class B
Class AB
Class C

Correct!

Wrong!

What class of operation is used where a portion of a signal only is required, such as the synchronizing pulse separator of a television receiver?
Class A
Class B
Class AB
Class C

Correct!

Wrong!

An instrument use to measure ones location in terms of coordinates
GPS
ILS
FANS
GSM

Correct!

Wrong!

Class C operation can have ________ percent efficiency.
100%
78.5%
50%
70%

Correct!

Wrong!

The capacitors are considered __________ in the dc equivalent circuit of a transistor amplifier.
Short
Partially short
Open
Partially open

Correct!

Wrong!

Which of the following is provided by a CB transistor amplifier?
Voltage gain
Power gain
Current gain
Gain stability

Correct!

Wrong!

The ________ the voltage regulation, the better the operation of the voltage supply circuit.
Smaller
Bigger
Moderate
Biggest

Correct!

Wrong!

A feedback circuit is ________ frequency
Independent of
Strongly dependent on
Moderately dependent on
Relatively dependent on

Correct!

Wrong!

An amplifier configuration where the input signal is led to the emitter terminal and the output from the collector terminal is called
Common base
Common emitter
Clipper
Common collector

Correct!

Wrong!

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Electronic Circuits – Quiz 03

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