Emerson Electric Co. Electrical GET Interview Questions and Answers

Moderate level questions in aptitude test

Q1. Course related questions ask
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Q1. Electromagnetic induction
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Q2. Different motors and their uses
Ans. 
Different types of motors are used for various applications in industries and households.
• AC motors are commonly used in household appliances like fans and refrigerators.

• DC motors are used in toys, power tools, and electric vehicles.

• Servo motors are used in robotics and automation for precise control.

• Stepper motors are used in CNC machines and 3D printers for accurate positioning.
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Q1. SWITCHGEAR and protection
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Basic logical reasoning questions were asked, with a greater emphasis on quantitative aptitude.

Q1. Design an Astable Multivibrator and explain its functioning
Ans. 
An Astable Multivibrator is a type of oscillator circuit that generates a continuous square wave output.
• Consists of two transistors cross-coupled through capacitors and resistors

• No stable state, continuously switches between high and low states

• Capacitors charge and discharge alternately, creating oscillations

• Commonly used in applications like signal generators, LED flashers, and tone generators
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Q2. Draw the VI characteristics of a pn junction diode and explain the graph
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The VI characteristics of a pn junction diode show the relationship between voltage and current flowing through the diode.
• The graph shows a non-linear relationship between voltage and current, with forward and reverse bias regions.

• In forward bias, the diode conducts current easily with a small voltage drop, while in reverse bias, it blocks current flow until breakdown voltage is reached.

• The knee voltage in the forward ...read more
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Normal apptitude test

Q1. What is Power system
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Power system is a network of electrical components used to generate, transmit, and distribute electricity.
• Power system includes power generation plants, transmission lines, substations, and distribution networks.

• It ensures electricity is efficiently produced and delivered to consumers.

• Examples of power systems include the electrical grid in a city or a solar power system for a home.
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Q2. What type of conductor use in transmission line
Ans. 
Copper and aluminum conductors are commonly used in transmission lines.
• Copper conductors have high conductivity and are often used in high voltage transmission lines.

• Aluminum conductors are lighter and cheaper, making them suitable for long distance transmission lines.

• Composite conductors, such as Aluminum Conductor Steel Reinforced (ACSR), are also used for their strength and conductivity.
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Q1. Introduction of yourself
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I am a recent graduate with a degree in Electrical Engineering, passionate about renewable energy and power systems.
• Graduated with a Bachelor's degree in Electrical Engineering

• Interested in renewable energy and power systems

• Completed internships at XYZ Company and ABC Corporation
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Q2. When you join the company, what thing you have done 1st
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The first thing I would do when joining the company is familiarize myself with the company's policies and procedures.
• Review employee handbook and company policies

• Attend orientation and training sessions

• Meet with team members and supervisors to understand expectations
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Online aptitude test was easy. Questions were asked on electrical only.

Q1. Interview starts from basics of electrical. Questions were centered around generators and transformers. They test your basic electrical knowledge. No cross questioning and all direct questions
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Q2. Types of rotors in generators
Ans. 
Types of rotors in generators include salient pole rotor and cylindrical rotor.
• Salient pole rotor has projecting poles with concentrated windings, used in low-speed applications.

• Cylindrical rotor has distributed windings and is used in high-speed applications.

• Other types include wound rotor and squirrel cage rotor.

• Wound rotor has three-phase windings connected to slip rings, used in variable speed applications.

• Squirrel...read more
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Q3. What is star delta Starter
Ans. 
Star delta starter is a type of reduced voltage starter used for starting high power motors.
• Consists of two contactors - one for star connection and one for delta connection

• Reduces starting current and torque on the motor

• Commonly used in industrial applications for motors above 5 HP
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Q4. What are the types of transformer losses
Ans. 
Types of transformer losses include copper losses, iron losses, and stray losses.
• Copper losses: Also known as I^2R losses, occur in the copper windings of the transformer due to resistance.

• Iron losses: Also known as core losses, occur in the transformer core due to hysteresis and eddy currents.

• Stray losses: Occur due to leakage flux and imperfect magnetic coupling between the windings.

• Examples: An example of copper los...read more
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Q5. Working principle of generator
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A generator works on the principle of electromagnetic induction to convert mechanical energy into electrical energy.
• Generators use a magnetic field and a conductor to create a flow of electrons, generating electricity.

• When the conductor moves through the magnetic field, it induces a current in the conductor.

• This current is then collected and transferred through wires to power electrical devices.

• Examples of generators i...read more
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Q1. First Section includes Technical questions
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Q2. Another section was of Aptitude
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Q1. First they will ask you about your projects.
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Q2. Then some basics of the technical subjects that you have already told them you are good at.
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Q1. Your Introduction.
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I am a recent graduate with a degree in Electrical Engineering seeking opportunities to apply my knowledge and skills in a professional setting.
• Recent graduate with a degree in Electrical Engineering

• Seeking opportunities to apply knowledge and skills

• Passionate about the field and eager to learn and grow
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Q2. They will ask you about why you have chosen this field or branch and why you want to join within this industry, to be sure of your clear vision for the particular field you have chosen.
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