Welcome to ECE Board Exam Practice Quiz for Industrial Electronics. This set of practice quiz 7 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.
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Resistance spot welding (RSW) machine type that is controlled by hydraulic cylinders.
Miniature welders
Rocker-arm welder
Press-type welder
Portable spot welder
Correct!
Wrong!
When an SCR is triggered or on conducting, its electrical characteristics are similar to what other solid-state device (as measured between its cathode and anode)?
The junction diode
The varactor diode
The tunnel diode
The hotcarrier diode
Correct!
Wrong!
During arc welding, the current is in the range of _______.
1 – 5 A
5 – 50 A
50 – 400 A
500 – 4000 A
Correct!
Wrong!
It is the fusion or growing of the materials being together.
Coalition
Coincidence
Coalescense
Mixing
Correct!
Wrong!
Resistance welding was developed by this man in and revolutionized the welding industry.
Isaac Asimov
Karel Capek
Thomas Seebeck
Elihu Thomson
Correct!
Wrong!
Referred to as a localized coalescence
Weld
Mold
Cast
Metal
Correct!
Wrong!
A series RC circuit that is connected in parallel with an SCR to eliminate false triggering.
Crowbar
Snubber
Varistor
Eliminator
Correct!
Wrong!
Welder machine with capacities up to 500 kVa
Miniature welders
Rocker-arm welder
Press-type welder
Portable spot welder
Correct!
Wrong!
The overlapped RSW.
RSEW (Resistance Seam Welding)
ORSW
OSW
USW
Correct!
Wrong!
The fusion of the grain structure of materials.
Forge
Weld
Recombination
Coalescence
Correct!
Wrong!
Welding machine use for large workpieces.
Miniature welders
Rocker-arm welder
Press-type welder
Portable spot welder
Correct!
Wrong!
Heat in resistance welding is produced by the following factors except one
Time duration
Current
Electrical resistance
Pressure applied
Correct!
Wrong!
The time between the first application of electrode force and the first application of welding current.
Squeeze time
Weld time
Hold time
Off period
Correct!
Wrong!
Which device can be modeled by a diode and two resistors?
BJT
DIAC
SCR
UJT
Correct!
Wrong!
Typical breakover voltage of an SBS.
2 V
4 V
8 V
16 V
Correct!
Wrong!
This device is two zener diodes connected back to back in series and is used to support voltage surges and transients.
Thyristor
Varactor
Thyrector
Phanatron
Correct!
Wrong!
A TRIAC is equivalent to inverse parallel combination of
Shockley
Schottky
BJT
SCR’s
Correct!
Wrong!
A four-element solid state device that combines the characteristics of a both diodes and transistors.
Varactor
Zener diode
Tunnel diode
SCR
Correct!
Wrong!
The ratio of the emitter to base1 resistance to the interbase resistance of a UJT.
Aspect ratio
Current gain
Voltage gain
Intrinsic standoff ratio
Correct!
Wrong!
The last step in welding time control.
Off period
Weld time
Squeeze time
Hold time
Correct!
Wrong!
Find the two stable operating conditions of an SCR.
Conducting and non-conducting
Oscillating and quiescent
NPN conduction and PNP conduction
Forward conducting and reverse conducting
Correct!
Wrong!
The region where breakover voltage of the SBS drops to 1 V instantaneously.
Falldown region
Fallback region
Breakback region
Breakdown region
Correct!
Wrong!
For inspection of welding defects in thick metals, which of the following ray is used to photograph thick metals objects?
Gamma rays
Cosmic rays
Infrared rays
Ultraviolet rays
Correct!
Wrong!
A two-terminal, bidirectional thyristor.
DIAC
Shockley
TRIAC
Diode
Correct!
Wrong!
Time when electrode force is applied but the current is shut off.
Off period
Hold time
Squeeze time
Weld time
Correct!
Wrong!
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Industrial Electronics – Quiz 07
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