Graphite India Interview Questions and Answers

DTR stands for Dead Time Recovery. It is a structure used in the oil and gas industry to separate gas and liquid phases.

• DTR is typically made of steel or other corrosion-resistant materials.

• The structure is designed to handle high pressure and temperature conditions.

• Common materials used in the construction of DTR include carbon steel, stainless steel, and duplex stainless steel.

• The choice of material depends on factors such as the composition of the fluids being processed an...read more

A Bucoz relay is a type of protective relay used in power systems to detect faults and isolate them to prevent damage.

• Bucoz relay is a type of protective relay used in power systems.

• It functions by detecting faults in the system and isolating them to prevent damage.

• It helps in maintaining the stability and reliability of the power system.

• Bucoz relay operates based on the principle of electromagnetic induction.

• Examples of faults detected by Bucoz relay include overcurrent, ove...read more

Pipe earthing of DTR involves using a metal pipe buried in the ground to provide a low-resistance path for fault currents.

• Metal pipe is buried vertically in the ground near the DTR

• The pipe is filled with alternate layers of charcoal and salt to improve conductivity

• A copper wire is connected to the pipe and then to the DTR for grounding purposes

Mutual induction is the process where a changing current in one coil induces a voltage in another coil.

• Mutual induction occurs when two coils are placed close to each other and the magnetic field produced by one coil induces a voltage in the other coil.

• The induced voltage in the second coil is directly proportional to the rate of change of current in the first coil.

• This phenomenon is the basis for the operation of transformers and is used in wireless power transfer technologi...read more

Flux is the flow of electric or magnetic field lines through a surface, while current is the flow of electric charge.

• Flux is a measure of the flow of a physical property through a given area.

• In electromagnetism, flux refers to the flow of electric or magnetic field lines through a surface.

• Current is the flow of electric charge through a conductor.

• Flux and current are related through Faraday's law of electromagnetic induction.