Acuity Knowledge Partners Interview Questions and Answers

Power factor is a measure of how effectively electrical power is being converted into useful work output.

• Power factor is the ratio of real power to apparent power in an electrical circuit.

• It is a number between 0 and 1, with 1 representing perfect efficiency.

• A low power factor indicates that a circuit is not efficiently using the power it is receiving.

• Power factor can be improved by using power factor correction devices such as capacitors.

• Formula: Power Factor = Real Power / ...read more

A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction.

• Consists of two coils of wire, known as primary and secondary windings

• Operates on the principle of Faraday's law of electromagnetic induction

• Used to increase or decrease voltage levels in electrical circuits

• Commonly used in power distribution systems to step up or step down voltage

• Examples include power transformers, distribution transformers, ...read more

Power is the ability to influence or control others, or the capacity to perform effectively.

• Power can be in the form of authority, control, or influence over others.

• It can also refer to the ability to perform effectively or efficiently in a given task or role.

• Examples of power include political power, physical power, and expert power in a specific field.

The dg is a unit of measurement used in the field of optics to represent the diameter of a lens or aperture.

• dg stands for diameter

• It is commonly used in specifying the size of camera lenses, telescope apertures, and other optical components

• For example, a lens with a dg of 50mm has a diameter of 50 millimeters

A motor is a device that converts electrical energy into mechanical energy to produce motion.

• Converts electrical energy into mechanical energy

• Produces motion

• Common types include electric motors and combustion engines

ACB stands for Air Circuit Breaker, a type of circuit breaker that operates in the air as an arc extinguishing medium.

• ACB is used to protect electrical circuits from overloads and short circuits.

• It is commonly used in industrial and commercial applications.

• ACBs can be manually operated or automatically operated based on the current flow.

• Examples of ACB manufacturers include Siemens, Schneider Electric, and ABB.