Maintenance Associate Interview Questions and Answers

No, if 4 AC bulbs are connected in series, they will not all glow.

• When bulbs are connected in series, the current passing through each bulb is the same, so if one bulb is faulty or not glowing, the others will not glow either.

• In a series circuit, the total voltage is divided among the bulbs, so if one bulb has a higher resistance or is faulty, it will affect the others.

• Example: If one bulb in a series circuit burns out, the rest of the bulbs will also not light up.

A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction. OLR stands for Overload Relay.

• Transformers are used to increase or decrease the voltage of an alternating current (AC) power supply.

• They consist of two coils of wire, called the primary and secondary, wrapped around a magnetic core.

• When an AC current flows through the primary coil, it creates a magnetic field that induces a voltage in the seco...read more

VFD programming refers to the process of configuring and controlling Variable Frequency Drives.

• VFD programming involves setting parameters such as motor speed, acceleration, and deceleration

• It allows for precise control of motor speed and torque

• Programming can be done through a computer interface or keypad on the VFD

• Examples of VFD programming languages include ladder logic and function block programming

MCB stands for Miniature Circuit Breaker, a type of circuit protection device that operates on direct current (DC) current.

• MCB is a type of circuit breaker used to protect electrical circuits from overloads and short circuits.

• It is commonly used in residential and commercial buildings to provide protection to electrical circuits.

• MCBs are available in different types such as Type B, Type C, and Type D based on their tripping characteristics.

• DC current refers to the flow of ele...read more