Cotmac Electronics Electrical Design Engineer Interview Questions and Answers

Q1. Protection of drives & Plc . Switchgear selection, logistics automation
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Q1. Communication skills
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About power system control system

Present trends and tgey willgive 10 min to think and note down

Q1. About resume get good knowledge of what you have put in resume
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Q2. And basic electricals
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30min test from core subject

Usual GD on a relevant topic, everyone gets the opportunity to talk. Make relevant points and stick on to your opinion.

Q1. Complex technical questions from core subjects, application level questions should be expected.
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Q1. MR+HR round combined.
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Q1. Power factor correction
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Q2. Working of circuit breaker
Ans. 
Circuit breakers are electrical switches designed to protect electrical circuits from damage caused by overload or short circuit.
• Circuit breakers automatically trip when they detect an overload or short circuit in the electrical system.

• They interrupt the flow of electricity to prevent damage to the circuit or electrical devices.

• Circuit breakers can be reset manually after tripping to restore power to the circuit.

• There ...read more
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Q1. Question on Autocad
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Q2. Question on Automatic Transfer Switch
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Q3. Typer of Automatic Transfer switch
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Automatic Transfer Switches are devices used to automatically switch power sources in case of a power outage.
• Types of automatic transfer switches include open transition, closed transition, and delayed transition.

• Examples of automatic transfer switch manufacturers include Generac, Eaton, and Schneider Electric.

• Automatic transfer switches are commonly used in backup power systems for critical facilities like hospitals,
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Q4. Purge command, layers
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Q5. Load bank related questions
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Q1. Tell me about your self ?
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Q2. Brief the project completed by you in your college?
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Q1. Working of Transmission shaft in automobile?
Ans. 
Transmission shaft in automobiles transmits power from the engine to the wheels.
• Transmits power from the engine to the wheels

• Helps in changing the speed and torque of the vehicle

• Connects the engine to the wheels through the gearbox and differential

• Can be a single-piece shaft or a two-piece shaft in some vehicles
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Q2. Ackreman steering system in present scenario?
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Ackerman steering system is still widely used in modern vehicles for better maneuverability and turning radius.
• Ackerman steering geometry ensures that all wheels follow different turning radii during a turn

• It helps in reducing tire wear and improving vehicle stability during turns

• Modern vehicles like sports cars, trucks, and even some electric vehicles still use Ackerman steering system
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Q3. How Steering system work in automobile?
Ans. 
The steering system in automobiles allows the driver to control the direction of the vehicle by turning the front wheels.
• The steering wheel is connected to the steering column, which is connected to the steering gear.

• The steering gear translates the rotational motion of the steering wheel into lateral motion of the front wheels.

• There are different types of steering systems such as rack and pinion, recirculating ball, a...read more
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Q4. You done your Training at Skoda Pvt Ltd, what was you trained there ?
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