Samsung Interview Questions and Answers

Charging of an electrode in e.s.p control is the process of applying an electric charge to the electrode to attract and collect particulate matter in a thermal power plant.

• Charging of an electrode is a crucial step in the operation of an electrostatic precipitator (e.s.p) in a thermal power plant.

• The electrode is charged with a high voltage DC power supply, typically ranging from 40,000 to 70,000 volts.

• The charged electrode creates an electric field that attracts and collects...read more

Breathing inside a transformer refers to the movement of air caused by temperature changes and the expansion and contraction of the transformer's internal components.

• Breathing is a natural phenomenon that occurs in transformers due to thermal cycling.

• As the transformer heats up during operation, the internal components expand, causing the air inside to be expelled.

• When the transformer cools down, the internal components contract, creating a vacuum that draws in fresh air.

• This...read more

A.C.P stands for Aluminum Composite Panel and LTMSB panels are Low Tension Main Switch Boards used in electrical systems.

• A.C.P is a lightweight material used for cladding, facades, and signage.

• It consists of two thin aluminum sheets bonded to a non-aluminum core.

• LTMSB panels are used to distribute power to various electrical loads in a building.

• They are designed to handle low voltage and current levels.

• LTMSB panels typically include circuit breakers, fuses, and other protecti...read more

There are several types of starters used in engineering, such as direct-on-line starters, star-delta starters, and auto-transformer starters.

• Direct-on-line starters are the simplest type and provide full voltage to the motor at startup.

• Star-delta starters reduce the voltage during startup to minimize the current surge.

• Auto-transformer starters use an autotransformer to reduce the voltage during startup.

• Other types include soft starters, which gradually increase the voltage to...read more

The full form of S.C.R is Silicon Controlled Rectifier.

• S.C.R stands for Silicon Controlled Rectifier.

• It is a type of semiconductor device used for controlling electric current.

• It is widely used in power control applications such as motor speed control, lighting control, and power supplies.

• S.C.R acts as a switch that can be triggered to conduct or block current flow.

• It has three terminals - anode, cathode, and gate.

• When a small current is applied to the gate terminal, it trigg...read more

Kirchhoff's law is a fundamental principle in electrical circuit analysis that relates to the conservation of charge and energy.

• Kirchhoff's law includes two principles: Kirchhoff's current law (KCL) and Kirchhoff's voltage law (KVL).

• KCL states that the sum of currents entering a node is equal to the sum of currents leaving the node.

• KVL states that the sum of voltages around any closed loop in a circuit is equal to zero.

• These laws are used to analyze complex electrical circuit...read more