BrainSquare Technologies Interview Questions and Answers

There are mainly three types of earthing: Plate earthing, Pipe earthing, and Rod earthing.

• Plate earthing involves burying a copper plate in the ground.

• Pipe earthing involves burying a pipe in the ground.

• Rod earthing involves burying a rod in the ground.

Corona effect is the phenomenon where an electrical discharge surrounds a conductor due to high voltage, creating a corona discharge.

• Corona effect occurs when the electric field around a conductor is strong enough to ionize the air molecules, creating a visible glow or corona discharge.

• It can lead to power loss, audible noise, and radio interference in high voltage transmission lines.

• Corona effect is more pronounced in high humidity and polluted environments.

• Examples include ...read more

An isolator is a device used to separate a specific area or equipment from its surroundings to prevent contamination or interference.

• Isolators are commonly used in pharmaceutical manufacturing to protect products from contamination.

• They can also be used in laboratories to prevent cross-contamination between samples.

• Isolators typically have sealed enclosures with gloves attached for operators to handle items inside without direct contact.

• Some isolators may also have air filtra...read more

SMPS stands for Switched Mode Power Supply, a type of power supply that uses switching devices to convert electrical power efficiently.

• SMPS systems are commonly used in electronic devices to convert AC power to DC power.

• They are more efficient and lighter than traditional linear power supplies.

• Examples of devices that use SMPS systems include computers, televisions, and LED lights.

OEE stands for Overall Equipment Effectiveness, a metric used to measure the efficiency of a manufacturing process.

• OEE takes into account three factors: availability, performance, and quality.

• It is calculated by multiplying availability, performance, and quality percentages.

• For example, if a machine is available 90% of the time, operates at 80% of its maximum speed, and produces 95% good parts, the OEE would be 68.4%.

MTBF stands for Mean Time Between Failures, a measure of reliability indicating the average time between failures of a system.

• MTBF is calculated by dividing the total operational time by the number of failures that occurred.

• It is commonly used in industries such as manufacturing, electronics, and telecommunications to assess the reliability of products.

• For example, if a computer system has an MTBF of 10,000 hours, it is expected to operate for an average of 10,000 hours befor...read more