Kent plc Senior Electrical Technician Interview Questions and Answers

An electrical system is a network of interconnected components that work together to generate, transmit, and distribute electrical power.

• An electrical system includes power generation sources such as power plants or renewable energy sources.

• It also includes transmission lines that carry electricity over long distances.

• Distribution networks deliver electricity to homes, businesses, and other end-users.

• Electrical systems...read more

Different types of pumps include centrifugal, reciprocating, and rotary pumps. Pump sealing systems can include mechanical seals, packing seals, and magnetic drive seals. Pump API plans are standardized plans for pump maintenance and troubleshooting.

• Types of pumps: centrifugal, reciprocating, rotary

• Pump sealing systems: mechanical seals, packing seals, magnetic drive seals

• Pump API plans: standardized plans for maintena

Positive pumps are used to move fluids by creating a pressure difference.

• Positive displacement pumps

• Centrifugal pumps

• Diaphragm pumps

• Gear pumps

• Piston pumps

• Peristaltic pumps

• Rotary pumps

• Screw pumps

• Vane pumps

A centrifugal pump is a mechanical device that uses centrifugal force to transport fluids.

• Centrifugal pumps are commonly used in various industries for fluid transportation.

• They work by converting rotational energy from a motor into kinetic energy in the fluid.

• The fluid enters the pump through the inlet and is accelerated by the impeller.

• The impeller's rotation creates centrifugal force, pushing the fluid towards the p...read more

The jockey pump is typically located in the fire pump room or near the main fire pump.

• The jockey pump is a small pump used to maintain pressure in a fire protection system.

• It is usually installed in conjunction with the main fire pump.

• The jockey pump helps prevent the fire pump from starting and stopping frequently by maintaining a constant pressure in the system.

• It is commonly found in the fire pump room or in close p...read more

Fire engines are used in various locations to respond to and extinguish fires.

• Fire engines are used in cities and towns to respond to structural fires in buildings.

• They are also used in rural areas to combat wildfires.

• Fire engines are deployed at airports to handle aircraft fires and emergencies.

• They are used in industrial areas to respond to fires in factories and warehouses.

• Fire engines are even used on ships and boa

A motor operator valve is a type of valve that is operated by an electric motor.

• Motor operator valves are commonly used in industrial applications.

• They are designed to control the flow of fluids or gases.

• Motor operator valves can be used in various systems, such as pipelines, power plants, and manufacturing processes.

• These valves are typically controlled remotely, allowing for automated operation.

• Examples of motor oper...read more

Star-Delta starter is used to start 3-phase motors. It reduces the starting current and torque.

• Star-Delta starter connects the motor in star configuration during starting to reduce the starting current and torque.

• After a few seconds, the starter switches the motor to delta configuration for normal operation.

• This method is used for motors with high starting current and torque requirements.

• It is commonly used in industri...read more

DOL starter is a direct-on-line starter used to start 3-phase motors by connecting them directly to the power supply.

• DOL starter provides full voltage to the motor at the start

• It consists of a contactor, overload relay, and start/stop push buttons

• The contactor connects the motor to the power supply

• The overload relay protects the motor from overloading

• The start/stop push buttons control the on/off function of the motor