Interview Questions and Answers

A lathe is a machine tool that rotates a workpiece about an axis of rotation to perform various operations such as cutting, sanding, drilling, knurling, or deformation.

• Lathe is used to shape and cut materials such as wood, metal, and plastic.

• It rotates the workpiece on its axis and a cutting tool is applied to the workpiece to remove material.

• Lathe can perform various operations such as turning, facing, drilling, boring, and threading.

• Examples of lathe machines include engine...read more

Boiler drum is a cylindrical container which is used to store water and steam produced in a boiler.

• It is a vital component of a boiler system.

• It is usually made of steel and is located at the top of the boiler.

• It acts as a reservoir of water/steam and helps to separate steam from water.

• It also helps to regulate the pressure and temperature of the steam.

• The level of water in the drum is maintained by a feedwater control system.

• The steam generated in the drum is used for variou...read more

Types of gear boxes and gears commonly used in mechanical engineering include spur gears, helical gears, bevel gears, and worm gears.

• Spur gears: most common type, straight teeth parallel to the gear axis

• Helical gears: angled teeth for smoother and quieter operation

• Bevel gears: used to change the direction of rotation

• Worm gears: used for high reduction ratios and high torque applications

Troubleshooting blowers and compressors involves identifying and resolving issues with their operation.

• Start by checking for any unusual noises or vibrations coming from the blower or compressor.

• Inspect the filters and ensure they are clean and not clogged, as this can affect performance.

• Check for any leaks in the system, as this can lead to a decrease in efficiency.

• Verify that all connections and components are secure and functioning properly.

• Consult the manufacturer's manua...read more

Types of conveyors include belt, roller, chain, screw, and pneumatic. Maintenance involves regular inspection, cleaning, lubrication, and replacing worn parts.

• Types of conveyors: belt, roller, chain, screw, pneumatic

• Maintenance tasks: regular inspection, cleaning, lubrication, replacing worn parts

• Examples: Belt conveyor used in manufacturing plants, roller conveyor in warehouses

Overhauling gear boxes and fans compressors involves disassembling, inspecting, repairing, and reassembling the components to ensure optimal performance.

• Disassemble the gear boxes and fans compressors carefully to inspect for any wear or damage

• Replace any worn out or damaged parts with new ones

• Clean and lubricate all components before reassembling

• Perform tests to ensure proper functioning after overhaul

• Document the overhaul process for future reference