Octillion Power Systems Trainee Test Engineer Interview Questions and Answers

An alternator is a device that converts mechanical energy into electrical energy in the form of alternating current.

• An alternator is commonly used in vehicles to charge the battery and power the electrical system.

• It consists of a rotor, stator, and diode rectifier assembly.

• Alternators produce alternating current (AC) which is then converted to direct current (DC) by the rectifier.

• They are more efficient and reliable th...read more

Specific gravity is the ratio of the density of a substance to the density of a reference substance. Service Engineer roles include maintenance, troubleshooting, and repair of equipment. Batteries in vehicles provide electrical power for starting the engine and running accessories.

• Specific gravity is a measure of how dense a substance is compared to water.

• Service Engineer responsibilities may include maintenance, troub...read more

Current is the flow of electric charge, voltage is the potential difference between two points, and capacity is the amount of charge a battery can store.

• Current is measured in Amperes (A) and represents the flow of electric charge through a circuit.

• Voltage is measured in Volts (V) and represents the potential difference between two points in a circuit.

• Capacity of a battery is measured in Ampere-hours (Ah) or milliamper...read more

An inverter is an electronic device that converts DC power to AC power.

• Inverters are commonly used in solar power systems to convert DC power from solar panels to AC power for use in homes and businesses.

• They are also used in cars to convert DC power from the battery to AC power for charging devices.

• Inverters come in various sizes and capacities, from small portable units to large industrial models.

• They can be pure sin...read more

The ampere is the SI unit of electric current, representing the flow of electric charge.

• The ampere is named after the French mathematician and physicist André-Marie Ampère.

• It is defined as one coulomb of charge passing through a conductor per second.

• The ampere is used to measure the intensity of electric current in a circuit.

• It is a fundamental unit in the International System of Units (SI).

A battery is a device that stores chemical energy and converts it into electrical energy.

• A battery consists of one or more electrochemical cells.

• It is commonly used to power electronic devices such as smartphones, laptops, and cars.

• Batteries can be rechargeable or non-rechargeable.

• They provide a portable and convenient source of power.

• Examples of batteries include alkaline batteries, lithium-ion batteries, and lead-aci

DC stands for Direct Current.

• DC is a type of electric current that flows in one direction.

• It is commonly used in batteries, electronic devices, and power transmission systems.

• Unlike AC (Alternating Current), DC does not change direction periodically.

• DC voltage can be either positive or negative depending on the direction of current flow.

• Examples of DC devices include smartphones, laptops, and electric vehicles.

AC stands for Alternating Current.

• AC is a type of electrical current that periodically reverses direction.

• It is commonly used in household appliances and electrical power transmission.

• AC voltage can be easily changed using transformers.

• AC is different from DC (Direct Current) which flows in only one direction.

• AC can be dangerous if not handled properly.

Current is the flow of electric charge through a conductor.

• Current is measured in amperes (A)

• It is caused by the movement of electrons

• Current can be either direct current (DC) or alternating current (AC)

• DC flows in one direction while AC alternates in direction

• Examples of current include the flow of electricity in a circuit or the flow of water in a river