Rane Engine Valve Limited Interview Questions and Answers

My daily routine as a Mechanical Maintenance Engineer involves inspecting equipment, troubleshooting issues, performing repairs, and ensuring smooth operation of machinery.

• Start the day by reviewing maintenance schedules and work orders

• Inspect machinery and equipment for any signs of wear or damage

• Troubleshoot and diagnose mechanical issues

• Perform routine maintenance tasks such as lubricating moving parts and replacing...read more

Some common problems faced in centreless grinding machines include vibration, workpiece not round, and wheel not dressed properly.

• Vibration during operation leading to poor surface finish

• Workpiece not being perfectly round due to improper setup or worn out parts

• Wheel not dressed properly causing uneven grinding or burning of workpiece

The bearings used in grinding wheel spindle for centerless grinding machine are usually angular contact ball bearings. The radial play allowed is typically 0.002-0.003 mm and the axial play is around 0.005-0.008 mm.

• Angular contact ball bearings are commonly used in grinding wheel spindles for centerless grinding machines.

• Radial play allowed is usually between 0.002-0.003 mm.

• Axial play allowed is typically around 0.005-...read more

Common problems faced in screw rods include wear and tear, corrosion, misalignment, and jamming.

• Wear and tear due to continuous use can lead to decreased efficiency and eventual failure.

• Corrosion can weaken the screw rod and cause it to break or malfunction.

• Misalignment of the screw rod can result in uneven wear and increased friction.

• Jammed screw rods can be caused by foreign objects or debris getting stuck in the mec...read more

Backlash in screw rod is checked by measuring the distance between the nut and the screw when the screw is rotated in both directions. Typically, a small amount of backlash is allowed.

• Measure the distance between the nut and the screw when the screw is rotated clockwise and counterclockwise

• Calculate the difference in these measurements to determine the amount of backlash

• Typically, a small amount of backlash is allowed ...read more

After new machine erection and commissioning, I conduct thorough testing, ensure proper functioning, train operators, and create maintenance schedules.

• Conduct thorough testing to ensure all components are functioning properly

• Train operators on how to use the machine safely and efficiently

• Create maintenance schedules to ensure the machine remains in optimal condition

• Address any issues or malfunctions that arise during i...read more

Hydraulics is a branch of engineering that focuses on the mechanical properties of liquids, particularly water and oil.

• Hydraulics involves the use of pressurized fluids to generate, control, and transmit power.

• Common applications of hydraulics include hydraulic brakes in vehicles, hydraulic lifts in car repair shops, and hydraulic systems in heavy machinery.

• Hydraulic systems consist of components such as pumps, cylinde...read more

In preventive maintenance schedule, I check equipment condition, lubrication, alignment, calibration, and cleanliness.

• Check equipment condition for signs of wear or damage

• Ensure proper lubrication of moving parts

• Check alignment of components for optimal performance

• Calibrate instruments and controls as needed

• Maintain cleanliness of equipment and surrounding area

• Examples: inspecting belts for wear, greasing bearings, ali...read more

TIG welding uses a non-consumable tungsten electrode to create the weld, while MIG welding uses a consumable wire electrode.

• TIG welding stands for Tungsten Inert Gas welding, while MIG welding stands for Metal Inert Gas welding.

• TIG welding requires more skill and precision compared to MIG welding.

• TIG welding produces higher quality and cleaner welds, making it suitable for thin materials and critical applications.

• MIG w...read more

Loading components onto a conveyor involves careful placement, alignment, and monitoring for efficiency and safety.

• Ensure the conveyor is stopped before loading components to prevent accidents.

• Align components properly to avoid jams; for example, use guides or fixtures.

• Load components evenly across the conveyor to maintain balance and prevent tipping.

• Monitor the loading process for any defects or misalignments, adjusti...read more

An air pad uses compressed air to create a cushion, facilitating smooth loading of components onto a conveyor.

• Air pads create a cushion of air that reduces friction when components are loaded.

• They help in aligning and stabilizing components as they are placed on the conveyor.

• For example, in a packaging line, air pads can gently lift boxes to prevent damage during loading.

• Air pads can adjust to the weight and shape of d...read more

An engine is a machine designed to convert energy into mechanical motion.

• Engines can be found in vehicles, machinery, and power plants.

• There are different types of engines such as internal combustion engines, steam engines, and electric motors.

• Engines require fuel or energy input to operate and produce output in the form of mechanical work.

• Regular maintenance and monitoring are essential to ensure engines operate effic...read more

A valve is a device that regulates, directs, or controls the flow of a fluid (such as gases, liquids, fluidized solids, or slurries) by opening, closing, or partially obstructing various passageways.

• Valves are commonly used in plumbing systems to control the flow of water or gas.

• There are different types of valves such as ball valves, gate valves, globe valves, and butterfly valves.

• Valves can be manual or automatic, de...read more

CNC stands for Computer Numerical Control, which is a system that uses computer software to control machine tools and equipment.

• CNC machines are automated tools that can be programmed to perform various tasks such as cutting, drilling, milling, and shaping.

• The CNC system interprets design specifications and translates them into commands for the machine to follow.

• CNC machines are widely used in manufacturing industries ...read more

OPT stands for Optional Practical Training, allowing international students to work in the U.S. after completing their studies.

• OPT is a temporary employment authorization for F-1 visa holders.

• Students can apply for up to 12 months of OPT after graduation.

• STEM graduates may qualify for a 24-month extension, totaling 36 months.

• OPT can be used for jobs directly related to the student's field of study.

• Example: A computer s...read more