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Power Electronic Test

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Type

Role Specific Skills

Time

10 minutes

Level

Medium

Questions

10

About the Test

This test assesses individuals’ ability and understanding of concepts like the basics of power electronics, power converters, inverters, and chopper circuits.

Power electronics refers to the application of electronic principles and techniques to the design and analysis of electronic systems that convert, control, and use electric power. These systems may include power converters, motor drives, inverters, rectifiers, and other devices that are used to transform and control electric power in a variety of applications.

Power electronics is a broad and rapidly-evolving field that encompasses a wide range of technologies and applications, including renewable energy systems, electric vehicles, industrial automation, and consumer electronics. Power electronic systems and devices play a crucial role in enabling the efficient and reliable use of electric power in modern society.

The course focuses on presenting the fundamental concepts of conversion, control, and monitoring of electric energy using power semiconductor devices. Methods for analyzing power electronic converters suitable for AC/DC, DC/DC, and DC/AC electrical energy conversions are presented.

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Skills Measured

  • Basic of Power electronic
  • Rectifier
  • Inverter
  • Chopper
  • Controller

Roles

  • Power Electronics Design Engineer
  • Electronic Engineer
  • Power system Hardware Engineer
  • Electrical Engineer
  • Controls Engineer

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1

Basic of Power electronic

The basic principles of power electronics involve the use of electronic devices and circuits to convert, control, and use electric power. This may include using power electronic devices such as power converters, motor drives, inverters, rectifiers, and choppers to transform and control electric power in a variety of applications.

2

Rectifier

A rectifier is a type of power electronic device that is used to convert alternating current (AC) into direct current (DC). There are several types of rectifiers, including half-wave rectifiers, full-wave rectifiers, and bridge rectifiers.

3

Inverter

An inverter is a type of power electronic device that is used to convert direct current (DC) into alternating current (AC). Inverters are commonly used in renewable energy systems, such as solar panels or wind turbines, to generate AC power that can be used by households and businesses.

4

Chopper

A chopper is a type of power electronic device that is used to rapidly switch an electric current on and off. Choppers are often used to control the voltage or current in a circuit, and can be used in a variety of applications, such as motor drives or power converters.

5

Controller

In the context of power electronics, a controller is a device or system that is used to control the operation of a power electronic device or circuit. Controllers may be used to regulate the voltage or current in a circuit, or to control the switching of power electronic devices.

The test is created by a subject-matter expert

Testlify’s skill tests are designed by experienced SMEs (subject matter experts). We evaluate these experts based on specific metrics such as expertise, capability, and their market reputation. Prior to being published, each skill test is peer-reviewed by other experts and then calibrated based on insights derived from a significant number of test-takers who are well-versed in that skill area. Our inherent feedback systems and built-in algorithms enable our SMEs to refine our tests continually.

View sample score cards

Top five hard skills interview questions for Power Electronic

1. What is the difference between linear and switching power supplies?
Why this Matters?

This question is essential to understand a candidate’s understanding of the basics of power electronics. It helps the interviewer evaluate whether the candidate has experience in both types of power supplies and can assess which type of power supply to use in a particular situation.

What to listen for?

The answer should demonstrate an understanding of the differences between linear and switching power supplies, including the advantages and disadvantages of each type.

2. How do you optimize power electronics for energy efficiency?
Why this Matters?

The interviewer wants to evaluate whether the candidate understands the importance of energy efficiency in power electronics and can use methods to optimize it. This is an essential question for candidates who want to work on power electronics projects that prioritize energy efficiency.

What to listen for?

The answer should demonstrate an understanding of the methods used to optimize power electronics, including techniques for reducing power losses, improving efficiency, and increasing energy storage.

3. What is the importance of feedback control in power electronics?
Why this Matters?

Feedback control is a crucial aspect of power electronics design. The interviewer wants to evaluate the candidate’s understanding of feedback control and its importance in power electronics.

What to listen for?

The answer should demonstrate a strong understanding of feedback control and how it can be used to stabilize and regulate power electronic circuits.

4. What are the common types of DC-DC converters, and how do they differ?
Why this Matters?

The interviewer wants to evaluate the candidate’s understanding of DC-DC converters, which are used to step up or step down DC voltages.

What to listen for?

The answer should demonstrate an understanding of the different types of DC-DC converters, including their operating principles, efficiency, and applications.

5. What are the main considerations when designing a high-power inverter for renewable energy systems?
Why this Matters?

This question tests the candidate’s understanding of power electronics in the context of renewable energy systems. Inverter design is crucial for these systems, and the interviewer wants to evaluate whether the candidate has experience designing inverters for high-power applications.

What to listen for?

The answer should demonstrate a strong understanding of the key considerations when designing high-power inverters for renewable energy systems, including efficiency, power density, reliability, and cost.

Frequently Asked Questions for Power Electronic

A Power Electronic assessment is a test of a person’s knowledge, skills, and abilities in the field of power electronics. This assessment is used to evaluate a candidate’s knowledge of power electronic devices, principles, and applications, as well as their ability to solve problems related to power electronic circuits and systems and design and simulate such circuits and systems.

A Power Electronic assessment helps recruiters and hiring managers in evaluating a person’s proficiency in using power electronic principles and techniques to design and analyze electronic systems that convert, control, and use electric power, and can provide valuable insights into a person’s abilities in this area.

  • Power Electronics Design Engineer
  • Electronic Engineer
  • Power system Hardware Engineer
  • Electrical Engineer
  • Controls Engineer

  • Basic of Power electronic
  • Rectifier
  • Inverter
  • Chopper
  • Controller

  • Designing and developing power electronic systems and devices
  • Simulating and analyzing power electronic circuits and systems
  • Building and testing prototypes

Frequently Asked Questions (FAQs)

Want to know more about Testlify? Here are answers to the most commonly asked questions about our company.

These are ready-made tests, existing in our test library, created by subject matter experts. We have 200+ such skills tests covering various skills from programming skills to DevOps, including Aptitude and Personality testing.

You can go to the ‘Test Library’ tab and search for tests from the Job Role or Test Type drop-down menu.

Currently, we do not offer any sample tests. However, when you select a test, there would be a few practice questions before the start of the actual test, which would give you a fair idea of how the entire test would look.

Our tests typically take between 25-30 minutes to complete.

In case you need to test for a unique skill-set or specialized experience, you can add your own questions and customize the test to suit your requirements.

We’ve put a lot of effort into ensuring a conducive test environment. A stable internet connection, an internet browser with cookies and Java-Script enabled is all that is required!
However, for a smooth test-taking process, we recommend the following browsers:
– Google Chrome
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Yes, our tests are compatible with almost all modern mobile devices (including tablets) that have a webcam installed.

Yes, our tests are EEOC (Equal Employment Opportunity Commission) compliant and are whetted by subject matter experts, thus having high reliability (test consistency) and validity (accuracy of the test).

Yes! We integrate with popular recruiting tools such as Greenhouse, Lever, GoodTime, and many more.

We are GDPR compliant and take data security very seriously. You have complete ownership of your data. All your data is safe and secure, and we do not expose it to any third party.

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