20+ JSW Steel Interview Questions and Answers

Interview questions for Maintenance Manager position covering topics such as turbochargers, brake systems, automatic transmissions, undercarriages, preventive maintenance, common rail systems, hydraulic lock systems, excavator troubleshooting, oil refilling capacity, and target/cost management.

• Turbocharger increases engine power by compressing air intake

• Brake system converts kinetic energy to heat to slow or stop a vehicle

• Automatic transmission system uses a torque converter ...read more

Maoist activities in Gadchiroli District, Maharashtra State

• Gadchiroli District in Maharashtra has been affected by Maoist activities.

• Maoists have been involved in various violent incidents in the district.

• The region has witnessed attacks on security forces, government infrastructure, and civilians.

• Maoists often target tribal communities and exploit their grievances.

• The government has been implementing counter-insurgency measures to tackle the Maoist threat.

Gear backlash refers to the amount of clearance or play between meshing gears.

• Gear backlash is important to prevent binding and ensure smooth operation of gears.

• It is measured in terms of the distance between the mating teeth when they are not in contact.

• Proper adjustment of gear backlash is crucial for efficient power transmission.

• Examples of gear backlash adjustment include shimming or adjusting the position of the gears.

Bearing preload is the force applied to a bearing to remove internal clearance and improve rigidity.

• Bearing preload is the force exerted on a bearing to eliminate internal clearance

• It helps improve rigidity and reduce noise and vibration

• Proper bearing preload ensures optimal performance and longevity of the bearing

• Examples include adjusting the nut on a wheel bearing or using shims to preload a ball screw bearing

Endplay of a bearing refers to the axial movement or play in the bearing along its axis.

• Endplay is the amount of axial movement allowed in a bearing before it reaches its limit.

• It is important to properly set the endplay in a bearing to ensure proper functioning and longevity.

• Endplay can be adjusted by adding or removing shims or spacers in the bearing assembly.

• Excessive endplay can lead to noise, vibration, and premature wear of the bearing.

• For example, in automotive wheel b...read more

The I-shift automatic gearbox uses helical gears and spur gears.

• I-shift automatic gearbox uses helical gears for the main transmission and spur gears for the auxiliary section

• Helical gears provide smoother and quieter operation compared to spur gears

• Spur gears are used for the auxiliary section as they are more efficient for high torque applications

The firing order in a 6 cylinder engine refers to the sequence in which each cylinder fires.

• The firing order is determined by the engine design and is usually specified by the manufacturer.

• It is important to follow the correct firing order to ensure proper engine performance and minimize vibrations.

• The firing order can be found in the engine's service manual or by contacting the manufacturer.

• For example, a common firing order for a 6 cylinder engine is 1-5-3-6-2-4.

Final drive is a component in a vehicle's powertrain system that delivers power from the transmission to the wheels.

• Final drive is typically found in rear-wheel drive and four-wheel drive vehicles.

• It consists of a differential and a set of gears that transfer power to the wheels.

• Final drive ratio determines the speed and torque output of the vehicle.

• Examples include rear axle final drives in trucks and SUVs.

A floating seal is a type of mechanical seal used in rotating equipment to prevent leakage of fluids.

• Consists of two sealing rings with one ring rotating and the other stationary

• Used in applications such as pumps, mixers, and agitators

• Provides better sealing performance and longer service life compared to traditional seals

Part planning is the process of determining the sequence of operations and resources needed to manufacture a specific part.

• Determining the steps required to manufacture a part

• Identifying the necessary materials and tools

• Scheduling the production timeline

• Optimizing the manufacturing process for efficiency

• Ensuring quality control measures are in place

My long-term goal is to continuously improve the maintenance process and reduce downtime. My short-term goal is to implement a preventive maintenance program. To handle pressure situations, I prioritize tasks, delegate responsibilities, and communicate effectively.

• Long-term goal: Continuous improvement of maintenance process and reduction of downtime

• Short-term goal: Implementation of preventive maintenance program

• To handle pressure situations: Prioritize tasks, delegate respo...read more

The firing order of a 6-cylinder engine determines the sequence in which each cylinder fires.

• The firing order is specific to each engine model and can be found in the manufacturer's documentation.

• It is important to know the firing order when troubleshooting engine performance issues.

• An incorrect firing order can cause engine misfires and poor performance.

• For example, a common firing order for a 6-cylinder engine is 1-5-3-6-2-4.

Differential is a mechanical device that allows the wheels of a vehicle to rotate at different speeds.

• Differential is commonly found in vehicles with multiple wheels, such as cars and trucks.

• It is located in the center of the axle and connects the drive shaft to the wheels.

• The main purpose of a differential is to allow the wheels to rotate at different speeds while still receiving power from the engine.

• This is important when turning corners, as the outer wheel needs to travel...read more

Dozer tracks use a continuous track system to move the machine forward.

• Dozer tracks consist of a series of metal plates linked together to form a continuous loop.

• The tracks are driven by a sprocket wheel at the rear of the machine.

• The front idler wheel guides the track and keeps it in place.

• The track tension is adjusted by a hydraulic cylinder.

• The track shoes can be replaced individually when they wear out.

RPM turbo refers to the revolutions per minute of a turbocharger, which measures how fast the turbocharger's turbine is spinning.

• RPM turbo is a measure of the speed at which a turbocharger's turbine is rotating

• It indicates the efficiency and power output of the turbocharger

• Higher RPM turbo values generally result in increased boost pressure and engine performance

• For example, a turbo with an RPM turbo of 10,000 would spin its turbine 10,000 times per minute

Self motor is not a commonly used term in electrical engineering.

• It is possible that the interviewer meant to ask about self-starting motors, which are motors that can start without external assistance.

• Another possibility is that they were referring to self-excited motors, which generate their own magnetic field without the need for a separate excitation source.

• It is important to clarify the question with the interviewer to ensure a proper answer is given.

EGR system stands for Exhaust Gas Recirculation system. It is used in internal combustion engines to reduce nitrogen oxide emissions.

• EGR system recirculates a portion of exhaust gases back into the engine's intake manifold.

• This reduces the combustion temperature and lowers the production of nitrogen oxides.

• The recirculated exhaust gases also help in reducing engine knocking and improving fuel efficiency.

• EGR systems can be found in both gasoline and diesel engines.

• Example: In ...read more

Batteries are devices that store chemical energy and convert it into electrical energy.

• Batteries come in various sizes and types, including alkaline, lithium-ion, and lead-acid.

• They are commonly used in electronic devices, vehicles, and backup power systems.

• Batteries have a positive and negative terminal, and the flow of electrons between them creates an electrical current.

• The capacity of a battery is measured in ampere-hours (Ah) or milliampere-hours (mAh).

Alternators are electrical generators that convert mechanical energy into electrical energy.

• Alternators are commonly used in vehicles to charge the battery and power the electrical system.

• They work by using a rotating magnetic field to induce an electrical current in a stationary coil of wire.

• Alternators are more efficient and reliable than traditional generators.

• They are also smaller and lighter, making them ideal for use in vehicles and other applications where space is lim...read more

Types of maintenance include corrective, preventive, predictive, and proactive maintenance.

• Corrective maintenance involves fixing a problem after it occurs.

• Preventive maintenance involves regularly scheduled maintenance to prevent problems from occurring.

• Predictive maintenance involves using data and analytics to predict when maintenance is needed.

• Proactive maintenance involves identifying and addressing potential issues before they become problems.

• Examples include changing o...read more