Wipro PARI Diploma Electrical Engineer Interview Questions and Answers

Q1. Electrical machine
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Q2. Environment study
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Q3. Transformers, a.c. machine and d.c. machine
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Q1. Electrical machine 1
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Q2. Electrical machine 2
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Q1. What is circuit breakers
Ans. 
Circuit breakers are electrical switches designed to protect electrical circuits from damage caused by overload or short circuit.
• Circuit breakers automatically stop the flow of electricity when a fault is detected.

• They can be reset manually after tripping.

• Common types include thermal-magnetic, magnetic, and thermal circuit breakers.

• Examples include miniature circuit breakers (MCBs) and molded case circuit breakers (MCC
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Q2. What is difference contractor or relay
Ans. 
Contractor is a device used to make or break an electrical circuit, while relay is an electromagnetic switch that opens or closes circuits.
• Contractor is typically used for high power applications, while relay is used for low power applications.

• Contractor is usually larger in size and can handle higher currents, while relay is smaller and handles lower currents.

• Contractors are commonly used in industrial settings for co...read more
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Q3. What is difference neutral or earthing
Ans. 
Neutral is a current-carrying conductor that completes the circuit, while earthing is a safety measure to prevent electric shock.
• Neutral wire carries current back to the source in a circuit

• Earthing provides a path for fault currents to flow safely to the ground

• Neutral wire is typically connected to the center tap of a transformer

• Earthing is done by connecting metal parts of electrical equipment to the earth
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Q4. What is star or delta
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Star and delta are two types of connections used in electrical circuits.
• Star connection is a type of electrical connection where all the components are connected at a common point, forming a star shape.

• Delta connection is a type of electrical connection where the components are connected in a triangular shape, resembling the Greek letter delta.

• Star connection is commonly used in three-phase AC circuits, while delta con...read more
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Q5. What is use contractor
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A contractor is a person or company hired to perform work on a specific project or job.
• Contractors are hired to complete tasks that the hiring company may not have the expertise or resources to do themselves.

• Contractors can be hired for various projects such as construction, electrical work, plumbing, etc.

• Contractors are typically paid for their services based on a contract or agreement outlining the scope of work, tim
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Q1. Firstly resume shortlist and after that interview related to technical questions
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Shortlist in interview round after that training for final shortlist

Q1. Basic technical questions regarding engineering
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Q1. Programming questions and some basic general questions
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