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Hariharan Foundations Interview Questions and Answers for Experienced
6 Interview questions
The phase to neutral voltage depends on the type of electrical system being used.
In a single-phase system, the phase to neutral voltage is equal to the line voltage.
In a three-phase system, the phase to neutral voltage is equal to the line voltage divided by the square root of 3.
For example, in a 120V single-phase system, the phase to neutral voltage is 120V.
In a 208V three-phase system, the phase to neutral volta...
Neutral to Earth voltage is the potential difference between the neutral wire and the earth.
Neutral to Earth voltage is typically very low, ideally close to zero.
It is important to maintain a low Neutral to Earth voltage to ensure electrical safety.
Neutral to Earth voltage can be measured using a voltmeter.
If the Neutral to Earth voltage is high, it may indicate a fault in the electrical system.
Neutral to Earth vo...
Phase to phase voltage is the voltage between two phases in a three-phase electrical system.
Phase to phase voltage is used in three-phase electrical systems.
It is the voltage between two phases, such as phase A to phase B or phase B to phase C.
The phase to phase voltage is typically higher than the phase to neutral voltage.
In a balanced three-phase system, the phase to phase voltage is equal to the square root of ...
Induction motors work on the principle of electromagnetic induction to convert electrical energy into mechanical energy.
Induction motors have a stator and a rotor.
When an alternating current is supplied to the stator windings, a rotating magnetic field is created.
This rotating magnetic field induces currents in the rotor windings, which in turn creates a magnetic field.
The interaction between the stator and rotor ...
RCCB stands for Residual Current Circuit Breaker. It is an electrical safety device used to protect against electric shock.
RCCB is installed in the electrical distribution board.
It detects and quickly interrupts the circuit if there is a leakage current.
To work on RCCB, follow these steps:
1. Ensure the power supply is switched off.
2. Open the electrical panel and locate the RCCB.
3. Check for any visible damage or ...
Ohm's Law states that the current flowing through a conductor is directly proportional to the voltage across it and inversely proportional to its resistance.
Ohm's Law relates the three fundamental electrical quantities: current, voltage, and resistance.
The equation for Ohm's Law is I = V/R, where I is the current, V is the voltage, and R is the resistance.
This law helps in understanding and calculating the behavio...
Hariharan Foundations Interview Experiences for Experienced
1 interview found
Selected
I applied via Naukri.com and was interviewed in Jan 2024. There were 2 interview rounds.
(6 Questions)
- Q1. How to Work On RCCB
- Ans.
RCCB stands for Residual Current Circuit Breaker. It is an electrical safety device used to protect against electric shock.
RCCB is installed in the electrical distribution board.
It detects and quickly interrupts the circuit if there is a leakage current.
To work on RCCB, follow these steps:
1. Ensure the power supply is switched off.
2. Open the electrical panel and locate the RCCB.
3. Check for any visible damage or loose...
- Q2. Ohm's Law Definition
- Ans.
Ohm's Law states that the current flowing through a conductor is directly proportional to the voltage across it and inversely proportional to its resistance.
Ohm's Law relates the three fundamental electrical quantities: current, voltage, and resistance.
The equation for Ohm's Law is I = V/R, where I is the current, V is the voltage, and R is the resistance.
This law helps in understanding and calculating the behavior of ...
- Q3. Induction Motor Working Principle
- Ans.
Induction motors work on the principle of electromagnetic induction to convert electrical energy into mechanical energy.
Induction motors have a stator and a rotor.
When an alternating current is supplied to the stator windings, a rotating magnetic field is created.
This rotating magnetic field induces currents in the rotor windings, which in turn creates a magnetic field.
The interaction between the stator and rotor magne...
- Q4. How much Phase to phase voltage
- Ans.
Phase to phase voltage is the voltage between two phases in a three-phase electrical system.
Phase to phase voltage is used in three-phase electrical systems.
It is the voltage between two phases, such as phase A to phase B or phase B to phase C.
The phase to phase voltage is typically higher than the phase to neutral voltage.
In a balanced three-phase system, the phase to phase voltage is equal to the square root of 3 tim...
- Q5. How much phase to neutral voltage
- Ans.
The phase to neutral voltage depends on the type of electrical system being used.
In a single-phase system, the phase to neutral voltage is equal to the line voltage.
In a three-phase system, the phase to neutral voltage is equal to the line voltage divided by the square root of 3.
For example, in a 120V single-phase system, the phase to neutral voltage is 120V.
In a 208V three-phase system, the phase to neutral voltage is...
- Q6. How much Neutral to Earth Voltage
- Ans.
Neutral to Earth voltage is the potential difference between the neutral wire and the earth.
Neutral to Earth voltage is typically very low, ideally close to zero.
It is important to maintain a low Neutral to Earth voltage to ensure electrical safety.
Neutral to Earth voltage can be measured using a voltmeter.
If the Neutral to Earth voltage is high, it may indicate a fault in the electrical system.
Neutral to Earth voltage...
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Hash map is a data structure that stores key-value pairs and uses a hash function to map keys to their corresponding values.
Hash map consists of an array of buckets, each containing a linked list of key-value pairs.
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I am drawn to this company for its innovative approach, strong values, and commitment to excellence in the industry.
The company's reputation for innovation aligns with my passion for driving change and improving processes.
I admire the strong emphasis on teamwork and collaboration, which I believe fosters a productive work environment.
The commitment to sustainability and corporate social responsibility resonates with my...
- Q3. Tell me about yourself
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