Dodsal Engineering & Construction FOC Technician Interview Questions and Answers

Q1. Name kya hai apka?
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Q2. Degree kya hai
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Electrical department all Technical questions and General averness questions in MCQ type

Q1. Electrical all Technical questions
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Q2. 1.Types of Transformer 2.Types of Electrical Drives 3. What is the frequence of India 4. What is your goal
Ans. 
Types of transformers include power transformers, distribution transformers, instrument transformers. Types of electrical drives include AC drives, DC drives, servo drives.
• Power transformers are used in high voltage transmission and distribution systems.

• Distribution transformers are used to step down voltage for use in homes and businesses.

• Instrument transformers are used for measuring voltage and current in power syst...read more
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Q1. 1. Tell me about yourself 2. What is your greatest strength 3. Why do you want to work here 4. Why should we choose you
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Q1. Basic technical questions
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Q2. What is electrical safety?
Ans. 
Electrical safety refers to practices and precautions taken to prevent electrical hazards and accidents.
• Ensuring all electrical equipment is properly maintained and inspected regularly

• Using appropriate personal protective equipment (PPE) when working with electricity

• Following proper lockout/tagout procedures when working on electrical systems

• Avoiding overloading circuits and using proper grounding techniques

• Training em...read more
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Q3. How to start maintenance work?
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To start maintenance work, first assess the equipment, create a maintenance plan, gather necessary tools and materials, and follow safety protocols.
• Assess the equipment to identify any issues or areas that need maintenance.

• Create a maintenance plan outlining tasks, schedules, and resources needed.

• Gather necessary tools and materials before starting the maintenance work.

• Follow safety protocols to ensure the safety of yo...read more
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Q4. What is tha safety precautions before maintenance?
Ans. 
Safety precautions before maintenance include proper training, wearing appropriate personal protective equipment, isolating energy sources, and following lockout/tagout procedures.
• Ensure proper training and understanding of maintenance procedures

• Wear appropriate personal protective equipment such as gloves, goggles, and helmets

• Isolate energy sources to prevent accidental startup

• Follow lockout/tagout procedures to ensur...read more
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Q5. Verious types of safety instrument in industry?
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Various types of safety instruments in industry include personal protective equipment, alarms, interlocks, and emergency stop buttons.
• Personal protective equipment (PPE) such as helmets, gloves, and safety goggles

• Alarms for notifying workers of potential hazards or emergencies

• Interlocks to prevent equipment from operating when safety conditions are not met

• Emergency stop buttons for quickly shutting down machinery in ca
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Conduct Theoretical Test.

Practical Test and group dissertation with electrical

Q1. What is the current and voltage difference?
Ans. 
Current is the flow of electric charge, measured in Amperes, while voltage is the force that drives the current, measured in Volts.
• Current is the rate of flow of electric charge in a circuit

• Voltage is the electrical potential difference that drives the current

• Current is measured in Amperes (A)

• Voltage is measured in Volts (V)

• Ohm's Law states that V = I * R, where V is voltage, I is current, and R is resistance
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Q2. Types of motor ?
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Types of motors include AC motors, DC motors, synchronous motors, asynchronous motors, stepper motors, and servo motors.
• AC motors: Alternating current motors commonly used in household appliances and industrial applications.

• DC motors: Direct current motors used in applications where speed control is important.

• Synchronous motors: Maintain a constant speed and are used in applications like clocks and timers.

• Asynchronous ...read more
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Q3. AC or DC different?
Ans. 
AC and DC are two types of electrical current with different characteristics and applications.
• AC stands for alternating current, which periodically changes direction and magnitude.

• DC stands for direct current, which flows in one direction at a constant voltage.

• AC is commonly used in household appliances and power distribution systems.

• DC is often used in electronics, such as batteries and computer power supplies.
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Solar field presentation

Q1. What is slip ring
Ans. 
A slip ring is an electrical component used to transfer power and electrical signals from a stationary to a rotating structure.
• Allows for continuous rotation without tangling wires

• Commonly used in electromechanical systems like motors, generators, and wind turbines

• Consists of stationary brushes and rotating conductive rings

• Helps in transmitting power, data, and signals across rotating interfaces
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Q2. What is oer unit slip
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Unit slip is the difference between synchronous speed and rotor speed in an induction motor.
• Unit slip is expressed as a fraction or percentage.

• It is used to calculate the rotor speed of an induction motor.

• Unit slip is necessary for determining the torque and efficiency of the motor.

• For example, if the synchronous speed of a motor is 1800 RPM and the rotor speed is 1750 RPM, the unit slip would be 0.0278 or 2.78%.
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Q1. Tell me about yourself
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Q2. What is your family background
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