Dd Pharmaceuticals Electrical Engineer Interview Questions and Answers

Power factor control methods involve techniques to improve power factor in electrical systems.

• One method is the use of power factor correction capacitors to offset inductive loads and improve power factor.

• Another method is the use of synchronous condensers to provide reactive power support and improve power factor.

• Adjusting the size of motors and other equipment to match the load can also help improve power factor.

• Regu...read more

Single phase motors have one power phase while 3 phase motors have three power phases, resulting in differences in power output and efficiency.

• Single phase motors have lower power output compared to 3 phase motors.

• 3 phase motors are more efficient and have smoother operation.

• Single phase motors are commonly used in household appliances like fans and pumps, while 3 phase motors are used in industrial applications like p

Resistance is the opposition to the flow of electric current in a material.

• Resistance is measured in ohms (Ω).

• It is caused by collisions between electrons and atoms in a material.

• Materials with high resistance are insulators, while materials with low resistance are conductors.

• Resistance can be calculated using Ohm's Law: R = V/I, where R is resistance, V is voltage, and I is current.