Welcome to ECE Board Exam Practice Quiz for Industrial Electronics. This set of practice quiz 6 will test your competence on the theories, concepts and problem solving involving Industrial Electronics. 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 Industrial Electronics.
Industrial Electronics Test Bank
In this section are compiled practice quiz for Industrial Electronics 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.
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Choose the letter of the best answer in each questions.
PREVIOUS: Industrial Electronics Practice Quiz 05
Thyristors are most often used as
Switches
Amplifiers
Buffers
Decoders
Correct!
Wrong!
Technically, what is dicing means?
Process of joining two diacs
Circuit of reducing noise
Device for reducing magnetic and radio interference
Process of breaking the silicon slice into chips
Correct!
Wrong!
A two-terminal, unidirectional thyristor.
DIAC
Shockley
TRIAC
Diode
Correct!
Wrong!
What is the PNPN device with two gates?
Diac
Triac
SUS
SCS
Correct!
Wrong!
Minimum anode current to hold a thyristor at conduction.
Trigger
Maintaining current
Holding current
Threshold voltage
Correct!
Wrong!
The lowest current that can prevent the transition of a UJT from conduction to blocking region.
Switching current
Emitter current
Valley current
Peak current
Correct!
Wrong!
The P of PUT stands for
Programmable
Performance
Peak
Post
Correct!
Wrong!
An electronic switch that has the highest single device current capacity and can withstand overloads better.
Thyratrons
Ignitrons
SCR
Triac
Correct!
Wrong!
Minimum duration of pulse triggering system for thyristors is ________.
At least 10 microseconds
At least 30 milliseconds
At least 10 milliseconds
At least 1 second
Correct!
Wrong!
A UJT has η = 0.65 and is connected to a 20 V supply. What is its VEB1?
12 V
13.6 V
12.7 V
14 V
Correct!
Wrong!
Which are the three terminals of a TRIAC?
Gate, anode1 and anode 2
Gate, source and sink
Base, emitter and collector
Emitter, base1 and base 2
Correct!
Wrong!
The thyristor counterpart of the unijunction transistor.
UJT
PUT
SBS
SCS
Correct!
Wrong!
A unidirectional-three terminal device, the most popular of thyristors.
SCS
Triac
UJT
SCR
Correct!
Wrong!
How do you stop the conduction during which the SCR is also conducting?
Remove voltage gate
Increase cathode voltage
Interrupt anode current
Reduce gate current
Correct!
Wrong!
A junction that is formed by adding controlled amounts of an impurity to the melt during crystal growth is termed as
Fused junction
Unijunction
Alloy junction
Doped junction
Correct!
Wrong!
Identify which of the following is a three layer device.
SCS
Diac
Triac
PUT
Correct!
Wrong!
The most popular and typical breakover voltage of a diac.
32 V
16 V
8 V
4 V
Correct!
Wrong!
The gap between the forward blocking region and the forward conduction region.
Band gap
Switching region
Jump gap
Negative resistance region
Correct!
Wrong!
An SCR is a _________.
Unijunction device
Device with three junctions
Device with four junctions
Device with two junctions
Correct!
Wrong!
What device has two terminals connected in inverse-parallel that pass in two directions?
Triac
Diac
Shockley
SCR
Correct!
Wrong!
A thyristor equivalent of a thyratron tube is ________.
Diac
Triac
SCR
PUT
Correct!
Wrong!
The minimum emitter to base voltage to trigger the UJT is the ________.
Forward breakover voltage
Trigger
Breakdown voltage
Peak voltage
Correct!
Wrong!
It is the minimum anode current to hold a thyristor at conduction.
Trigger
Maintaining current
Holding current
Threshold voltage
Correct!
Wrong!
Voltage required to turn on any thyristor.
Trigger voltage
Breakover voltage
Barrier voltage
Supply voltage
Correct!
Wrong!
For a UJT, it is the region between the peak and valley points as seen in its characteristics curve.
Active region
Negative resistance region
Trigger region
Saturation region
Correct!
Wrong!
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Industrial Electronics – Quiz 06
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