Bridge & Roof Co Diploma Electrical Engineer Interview Questions and Answers

Q1. What is voltage
Ans. 
Voltage is the difference in electric potential between two points in a circuit, measured in volts.
• Voltage is the driving force that pushes electric current through a circuit.

• It is measured in volts (V) and represents the potential energy per unit charge.

• Voltage can be positive or negative, depending on the direction of current flow.

• Higher voltage means more potential energy and can result in greater current flow.

• Examp...read more
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Q2. What is current
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Current is the flow of electric charge in a circuit.
• Current is measured in Amperes (A).

• It is the rate of flow of electric charge past a point in a circuit.

• Current can be either direct current (DC) or alternating current (AC).

• In a series circuit, the current remains the same throughout.

• Ohm's Law states that current is directly proportional to voltage and inversely proportional to resistance.
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Q1. What isOHM's law
Ans. 
Ohm's law states that the current flowing through a conductor is directly proportional to the voltage across it, and inversely proportional to the resistance of the conductor.
• Ohm's law is represented by the formula V = I * R, where V is voltage, I is current, and R is resistance.

• It helps in calculating the relationship between voltage, current, and resistance in an electrical circuit.

• For example, if a circuit has a vol...read more
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Q1. What are your strengths and weaknesses?
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Q2. Tell me about yourself.
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Q1. What is your family background?
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Q2. What are your salary expectations?
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Q3. Share details of your previous job.
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Q4. Why should we hire you?
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Q5. Why are you looking for a change?
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Q6. What are your strengths and weaknesses?
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Q7. Tell me about yourself.
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Q1. About youself? Role and responsibilities? why are you interested?
Ans. 
I am an experienced Electrical Engineer with a passion for designing and implementing innovative solutions.
• I have a strong background in electrical engineering, with a focus on power systems and control systems.

• I have successfully designed and implemented electrical systems for various projects, including commercial buildings and industrial plants.

• I am skilled in using CAD software for electrical design and have experi...read more
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Q1. About yourself? Role and responsibilities? day to day site work? what do u know about bechtel? Electrical safety? Drawing details?shop drawing? LOTO system? NC for quality and safety? Earthing system? powe...read more
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Q1. Documents? Current base salary? Expected base salary? Tentative date of joining?
Ans. 
I can provide the required documents and discuss salary and joining details.
• I can provide all necessary documents such as resume, certifications, and transcripts.

• My current base salary is $X per year.

• I expect a base salary in the range of $Y to $Z per year.

• I am available to join within X weeks/months.

• I can discuss further details during the interview.
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Q1. What is the process of battery sizing calculation
Ans. 
Battery sizing calculation involves determining the capacity and voltage required for a specific application.
• Determine the power requirements of the application

• Calculate the energy required by multiplying power and time

• Select a battery with sufficient capacity and voltage to meet energy requirements

• Consider factors such as temperature, discharge rate, and cycle life

• Perform testing and validation to ensure the selected
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Q2. Busbar tripping chemes
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Q1. Regarding your previous work experience
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Q2. What are the internal testing of transformers
Ans. 
Internal testing of transformers involves various tests to ensure proper functioning and safety.
• Insulation resistance test to check for any insulation breakdown

• Polarity test to verify correct connections

• Turns ratio test to ensure proper voltage transformation

• Winding resistance test to check for any short circuits or open circuits

• Impedance test to determine the impedance of the transformer

• Dielectric tests to assess the
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It's ok the question are asked from the basis

Q1. What is the need of earth wiring
Ans. 
Earth wiring is needed to provide a path for fault currents to safely dissipate into the ground.
• Ensures safety by preventing electric shocks and fires

• Protects electrical equipment from damage

• Meets regulatory requirements for grounding systems

• Provides a reference point for voltage levels

• Examples: grounding rods, grounding conductors
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Q2. To eliminate and drop the sudden fault current in the system
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Q1. He just asked about the basis questions
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Q1. Define the term electrical engineering
Ans. 
Electrical engineering is a field of engineering that deals with the study and application of electricity, electronics, and electromagnetism.
• Involves designing, developing, testing, and supervising the production of electrical equipment and systems

• Includes working with power generation, transmission, distribution, and utilization

• Incorporates knowledge of electronics, electromagnetism, and computer systems

• Applies princi...read more
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Q2. Define the principle of motor
Ans. 
The principle of motor involves converting electrical energy into mechanical energy to produce motion.
• Motors operate based on the principle of electromagnetic induction

• Electric current flowing through a wire in a magnetic field creates a force that causes the wire to move

• This movement is harnessed to produce mechanical energy and drive motion

• Examples include DC motors, AC motors, and stepper motors
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Q3. What is an electric shock
Ans. 
An electric shock is a sudden discharge of electricity through a person's body, causing injury or even death.
• An electric shock occurs when a person comes into contact with a source of electricity.

• The severity of an electric shock depends on the voltage, current, and duration of exposure.

• Symptoms of an electric shock can range from mild tingling to muscle contractions and burns.

• Examples of sources of electric shock incl...read more
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Q4. How can one protect themselves from an electric shock
Ans. 
To protect oneself from an electric shock, one should follow safety precautions and use proper equipment.
• Always turn off the power source before working on electrical equipment

• Use insulated tools and wear rubber gloves when working with live wires

• Avoid working in wet conditions or with wet hands

• Install Ground Fault Circuit Interrupters (GFCIs) in areas where water is present

• Regularly inspect and maintain electrical equ...read more
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Q5. What will resistance connected to a source voltage in series do
Ans. 
Resistance connected to a source voltage in series will affect the current flowing through the circuit.
• Increases the total resistance in the circuit

• Decreases the total current flowing through the circuit

• Causes a voltage drop across the resistor

• Can be calculated using Ohm's Law: V = I * R
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Q6. Define ohm's low
Ans. 
Ohm's law states that the current flowing through a conductor is directly proportional to the voltage applied across it, and inversely proportional to the resistance of the conductor.
• Ohm's law is represented by the formula: V = I * R, where V is the voltage, I is the current, and R is the resistance.

• It helps in calculating the current, voltage, or resistance in a circuit when the other two values are known.

• Ohm's law is...read more
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Q1. Salery discussion
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Q2. Location discussion
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