Rungta Mines ITI Electrician Interview Questions, Process, and Tips

Physics chemistry maths

Q1. What is ohm'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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Q2. What is galvanometer
Ans. 
A galvanometer is a device used to detect and measure small electric currents.
• Galvanometers typically consist of a coil of wire in a magnetic field, which deflects in response to the current flowing through it.

• They are often used as components in more complex instruments like ammeters and voltmeters.

• Galvanometers can be analog or digital, with analog versions displaying readings on a scale and digital versions showing ...read more
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Q3. What is power factor ?
Ans. 
Power factor is the ratio of real power to apparent power in an electrical system.
• Power factor is a measure of how effectively electrical power is being used in a system.

• It is calculated by dividing the real power (in watts) by the apparent power (in volt-amperes).

• A power factor of 1 indicates all the power is being used effectively, while a power factor less than 1 indicates inefficiency.

• Improving power factor can red...read more
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Q4. What is galvenisation?
Ans. 
Galvanization is the process of applying a protective zinc coating to steel or iron to prevent rusting.
• Galvanization involves immersing the metal in a bath of molten zinc or using an electroplating process.

• The zinc coating acts as a sacrificial anode, protecting the underlying metal from corrosion.

• Common examples of galvanized items include galvanized steel pipes, fences, and roofing materials.
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