NBC Bearings Diploma Trainee Engineer Interview Questions, Process, and Tips

Two-stroke engines have power strokes every revolution, while four-stroke engines have power strokes every other revolution.

• Two-stroke engines have a simpler design with fewer moving parts.

• Four-stroke engines are more fuel efficient and produce less pollution.

• Two-stroke engines are commonly used in small power tools and motorcycles.

• Four-stroke engines are typically found in cars, trucks, and larger machinery.

Bearings are used to reduce friction between two moving parts. Metal type is important for bearing performance.

• Metal type affects bearing strength, durability, and resistance to corrosion.

• Common bearing metals include steel, bronze, and ceramic.

• Steel bearings are strong and durable, but can corrode in certain environments.

• Bronze bearings are self-lubricating and resistant to corrosion, but not as strong as steel.

• Cerami...read more

My favorite subject in diploma is Electrical Engineering.

• I enjoy learning about electrical circuits and systems.

• I find the principles of electromagnetism fascinating.

• I am interested in power generation and distribution.

• I have a passion for designing and troubleshooting electrical systems.

• I excel in subjects like electrical machines and power electronics.

Grinding process involves removing material from a workpiece using an abrasive wheel or belt.

• Grinding is a finishing process used to improve surface finish, accuracy, and dimensional tolerances.

• The principle of grinding involves the use of an abrasive material to remove material from the workpiece.

• The grinding wheel or belt rotates at high speed, while the workpiece is held stationary or fed into the rotating wheel.

• The...read more

The rejection and rework percentage in the current industry varies depending on the sector and the quality control measures implemented.

• The rejection and rework percentage can be affected by factors such as the type of product, the manufacturing process, and the quality control measures in place.

• In the automotive industry, the rejection and rework percentage can be as low as 1% for some manufacturers, while others may ...read more

Thermodynamics laws, types of gears and bearings

• Thermodynamics laws include the first law (conservation of energy), second law (entropy always increases), and third law (absolute zero is unattainable)

• Types of gears include spur, helical, bevel, worm, and rack and pinion

• Types of bearings include ball bearings, roller bearings, and plain bearings

• Gears and bearings are commonly used in machinery and mechanical systems