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Bharatiya Rail Bijlee Company

4.0
based on 23 Reviews
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Novatr Interview Questions and Answers

Updated 5 Feb 2024

Q1. What is unit of temperature and pressure.

Ans.

The unit of temperature is Kelvin, Celsius, and Fahrenheit. The unit of pressure is Pascal, Bar, and PSI.

  • Temperature can be measured in Kelvin, Celsius, and Fahrenheit.

  • Pressure can be measured in Pascal, Bar, and PSI.

  • Kelvin is the SI unit of temperature.

  • Pascal is the SI unit of pressure.

  • Fahrenheit is commonly used in the United States.

  • Bar is commonly used in Europe.

  • PSI is commonly used in the United States for pressure measurement.

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Q2. Draw the rectifier diagram(ac ,dc)diagram

Ans.

Rectifier diagram converts AC to DC by removing negative half cycles.

  • Rectifier circuit consists of diodes and transformer.

  • AC voltage is applied to the transformer which steps down the voltage.

  • Diodes are used to remove the negative half cycles of the AC voltage.

  • The output obtained is a pulsating DC voltage which can be smoothed using a filter circuit.

  • AC rectifier diagram includes half-wave and full-wave rectifiers.

  • DC rectifier diagram includes center-tap and bridge rectifiers.

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Q3. How work is rectifier

Ans.

A rectifier is an electronic device that converts AC to DC.

  • Rectifiers are used in power supplies to convert AC voltage to DC voltage.

  • They are commonly used in electronic devices such as radios, televisions, and computers.

  • There are two types of rectifiers: half-wave and full-wave.

  • Half-wave rectifiers only allow half of the AC waveform to pass through, while full-wave rectifiers allow the entire waveform to pass through.

  • Rectifiers can be made using diodes or other semiconductor...read more

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Q4. What is Ohm's law explain.

Ans.

Ohm's law states that the current through a conductor between two points is directly proportional to the voltage across the two points.

  • Ohm's law is represented by the equation I = V/R, where I is the current, V is the voltage, and R is the resistance.

  • It applies to conductors that are linear and have a constant temperature.

  • Ohm's law is used in electrical engineering to calculate the current, voltage, or resistance in a circuit.

  • For example, if the voltage across a resistor is 1...read more

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Q5. How work is multimeter.

Ans.

A multimeter is a device used to measure electrical properties such as voltage, current, and resistance.

  • A multimeter typically has a display screen, probes, and a dial or buttons to select the type of measurement.

  • To measure voltage, the probes are connected to the circuit and the dial is set to the voltage range.

  • To measure current, the multimeter is placed in series with the circuit and the dial is set to the current range.

  • To measure resistance, the probes are connected to th...read more

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Q6. What is formula ofohm,s law

Ans.

Ohm's law formula is V = IR, where V is voltage, I is current, and R is resistance.

  • Ohm's law relates voltage, current, and resistance

  • The formula is V = IR

  • V is voltage, I is current, and R is resistance

  • It can be used to calculate any one of the three variables if the other two are known

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Q7. Turbine rotating speed

Ans.

Turbine rotating speed is the speed at which the turbine blades rotate to generate power.

  • Turbine rotating speed is typically measured in revolutions per minute (RPM).

  • The rotating speed of a turbine is determined by the design and size of the turbine.

  • Higher rotating speeds can result in increased power output, but also increased wear and tear on the turbine components.

  • Maintaining the optimal rotating speed is crucial for efficient and safe operation of the turbine.

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Q8. Who sefty rules

Ans.

Safety rules are guidelines and procedures put in place to ensure the well-being and protection of individuals in a work environment.

  • Safety rules are established to prevent accidents and injuries in the workplace.

  • They include wearing appropriate personal protective equipment (PPE) such as helmets, gloves, and safety goggles.

  • Safety rules also involve following proper procedures for handling equipment and machinery to minimize risks.

  • Regular safety inspections and training sessi...read more

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Q9. Stem power plant function

Ans.

The stem power plant function involves converting thermal energy into mechanical energy to generate electricity.

  • Stem power plants use steam to drive turbines that are connected to generators to produce electricity.

  • The steam is produced by heating water using fuels like coal, natural gas, or nuclear reactions.

  • The turbines convert the kinetic energy of the steam into mechanical energy, which is then converted into electrical energy by the generators.

  • The electricity generated is...read more

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