PC Jewellers Senior Electrician Interview Questions and Answers

Light is a form of electromagnetic radiation that is visible to the human eye. It is used for illumination, communication, and various other applications.

• Light is a type of electromagnetic radiation that is visible to the human eye.

• It can be produced naturally (sunlight) or artificially (light bulbs, LEDs).

• Light is used for illumination in homes, offices, streets, etc.

• It is also used for communication (fiber optics), p...read more

A transformer is a device that transfers electrical energy from one circuit to another through electromagnetic induction.

• Transformers consist of two coils of wire, known as the primary and secondary coils.

• The primary coil is connected to a power source, creating a magnetic field when current flows through it.

• This magnetic field induces a voltage in the secondary coil, allowing for the transfer of electrical energy.

• Tran...read more

A cooling tower is a specialized heat exchanger in which air and water are brought into direct contact to reduce the water's temperature.

• Used in HVAC systems to remove heat from a building or industrial process

• Water is circulated through the tower and exposed to air, causing evaporation and cooling

• Commonly seen in power plants, refineries, and large buildings

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.

• There are two types of current - direct current (DC) and alternating current (AC).

• Current is calculated using Ohm's Law: I = V/R, where I is current, V is voltage, and R is resistance.

A breaker is an electrical switch designed to protect an electrical circuit from damage caused by overload or short circuit.

• A breaker automatically interrupts the flow of electricity when it detects an overload or short circuit.

• Breakers come in different types such as circuit breakers, fuse boxes, and ground fault circuit interrupters (GFCIs).

• They are essential for preventing electrical fires and protecting electrical ...read more

CRM stands for Customer Relationship Management. It is a strategy used by companies to manage interactions with customers and potential customers.

• CRM involves using technology to organize, automate, and synchronize sales, marketing, customer service, and technical support.

• It helps companies build and maintain relationships with customers, streamline processes, and improve profitability.

• Examples of CRM software include

A megger is a portable instrument used to measure the insulation resistance of electrical equipment.

• Measures insulation resistance to detect any faults or breakdowns in electrical insulation

• Helps prevent electrical accidents and equipment failures

• Commonly used in maintenance and troubleshooting of electrical systems

MW stands for megawatt, a unit of power equal to one million watts.

• MW is a unit of power used to measure the rate at which energy is generated or consumed.

• 1 MW is equal to 1 million watts or 1,000 kilowatts.

• It is commonly used in the context of electricity generation and consumption.

• For example, a large wind turbine may have a capacity of 2 MW, meaning it can generate 2 million watts of power.