Megha Engineering & Infrastructures Electromechanical Engineer Interview Questions and Answers

Q1. Electrical technician
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Q2. Power tool & hand tool &other
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Q3. Instilling and maintenance
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Q1. Electrician and working
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Q2. Maintenance ITI electrician workers
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Electrician test and all questions

Q1. 2 way wairing And all electrical work
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Q2. 2 way and light and wairing and Earth and all
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Q3. Electrical all questions
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Normal introduction and interview

Q1. Type of electrical motor
Ans. 
There are various types of electrical motors including AC motors, DC motors, synchronous motors, and induction motors.
• AC motors: commonly used in household appliances and industrial applications

• DC motors: used in applications where speed control is important, such as in electric vehicles

• Synchronous motors: used in applications where precise speed control is required, such as in clocks and timers

• Induction motors: widely...read more
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Q2. 3 phase induction motor starter
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Q3. Protection of transformer
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Protection of transformer involves measures to prevent damage from overcurrent, overvoltage, and overheating.
• Use overcurrent protection devices such as fuses and circuit breakers to prevent damage from excessive current flow.

• Install overvoltage protection devices like surge arresters to safeguard against voltage spikes.

• Implement temperature monitoring systems to prevent overheating, such as thermal sensors and cooling ...read more
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Q4. ACB VCB maintenance
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Q5. Star delta connection
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Q1. What is Full form DOL starter
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DOL starter stands for Direct-On-Line starter, used to start motors by directly connecting them to the power supply.
• DOL starter is the simplest and most common type of motor starter.

• It directly connects the motor to the power supply without any intermediate starting method.

• It provides full voltage to the motor during starting, which can cause high inrush current.

• DOL starters are suitable for small to medium-sized motor...read more
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Q2. What is APFC PANEL
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APFC PANEL stands for Automatic Power Factor Correction Panel, used to maintain power factor in electrical systems.
• APFC PANEL automatically monitors and corrects the power factor of electrical systems.

• It helps in reducing electricity bills by maintaining a high power factor.

• APFC PANELs are commonly used in industries and commercial buildings.

• They consist of capacitors that are switched on and off based on the load requ...read more
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Q3. Star dalta conection
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Q1. I was interviewed for Transmission & Distribution Profile Q1 - Please walk us through your CV and your roles in the various projects ? Q2 - Tell us about design calculations of EHV Cables. How you come up ...read more
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Q2. Q15 - Concepts of HVDC & Offshore Connections
Ans. 
HVDC is a technology used to transmit high voltage DC power over long distances. Offshore connections refer to power transmission from offshore wind farms.
• HVDC is more efficient than AC transmission over long distances

• Offshore connections require specialized equipment and installation techniques

• HVDC is used for offshore connections to transmit power from offshore wind farms to the mainland

• Examples of HVDC projects incl...read more
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Q1. What are the major parts in power transformer?
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The major parts in a power transformer include the core, windings, insulation, cooling system, and tap changer.
• Core: Provides a path for magnetic flux and is usually made of laminated steel sheets.

• Windings: Consist of primary and secondary coils that transfer electrical energy.

• Insulation: Prevents electrical leakage and ensures safety.

• Cooling System: Keeps the transformer within operating temperature limits, commonly u...read more
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Q1. What do you want to switch ?
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I want to switch electrical circuits and devices.
• Switching electrical circuits to control the flow of electricity.

• Switching electrical devices on or off.

• Switching between different power sources.

• Switching between different modes or settings of electrical equipment.

• Switching between different electrical connections or configurations.
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Q1. Sp3d tool test for electrical
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Q2. What is the reference detais for tray layouts
Ans. 
Reference details for tray layouts include industry standards, project specifications, and manufacturer recommendations.
• Industry standards such as NEMA VE 1 and NEC Article 392 provide guidelines for tray layouts

• Project specifications outline specific requirements for tray layouts based on the project's needs

• Manufacturer recommendations provide information on the appropriate tray size, material, and installation method...read more
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Q3. Tray size types and dimensions
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Tray sizes vary depending on the application and can range from 2 inches to 36 inches in width.
• Tray sizes are determined by the amount and size of cables or wires being carried.

• Common tray sizes include 12 inches, 18 inches, and 24 inches in width.

• Tray depths can range from 1.5 inches to 6 inches.

• Tray materials can include aluminum, steel, or fiberglass.

• Tray types include ladder, solid bottom, wire mesh, and cable tray...read more
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Q4. Hazardous layout support document's
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