Tata Wiron Manager Mechanical Maintenance Interview Questions and Answers

The differential is a device that allows the wheels on an axle to rotate at different speeds while still receiving power from the engine.

• Allows wheels on the same axle to rotate at different speeds

• Transfers power from the engine to the wheels

• Helps with cornering by allowing the outer wheel to rotate faster than the inner wheel

• Consists of gears that distribute power evenly to the wheels

The dumper cooling system is responsible for maintaining the optimal temperature of the dumper to prevent overheating.

• Regularly check the coolant levels and top up if necessary.

• Inspect the radiator for any leaks or damage.

• Clean the radiator fins to ensure proper airflow.

• Monitor the temperature gauge regularly while operating the dumper.

• If the dumper overheats, stop immediately and allow it to cool down before continuin

Work permit system is a formal process to ensure safety during maintenance activities.

• Obtain necessary permits before starting any maintenance work.

• Identify potential hazards and implement necessary safety measures.

• Communicate with all involved parties about the work being done and safety precautions.

• Regularly review and update work permits as needed.

• Examples: hot work permit, confined space entry permit, electrical wo

The grade of oil used in a hydraulic system depends on the system's requirements and manufacturer recommendations.

• The grade of oil used in a hydraulic system is typically specified by the system manufacturer.

• Common grades of hydraulic oil include ISO VG 32, ISO VG 46, and ISO VG 68.

• The grade of oil chosen should meet the viscosity and performance requirements of the hydraulic system.

• Using the wrong grade of oil can lea...read more

VFD stands for Variable Frequency Drive, which controls the speed of an AC motor by varying the frequency and voltage of the power supplied to it.

• VFDs convert fixed frequency AC power to variable frequency AC power

• They control motor speed by adjusting the frequency of the power supplied

• VFDs can improve energy efficiency and reduce wear and tear on motors

• Common applications include HVAC systems, pumps, and conveyor belt

A servo drive is an electronic amplifier used to power and control servo motors in automation systems.

• Converts low-power control signals into high-power signals to move the servo motor

• Provides precise control over speed, position, and torque of the motor

• Commonly used in robotics, CNC machines, and industrial automation

• Helps in achieving accurate and repeatable motion control

PLC stands for Programmable Logic Controller. There are various types of PLCs available in the market, each with its own unique features and capabilities. Some common types include modular PLCs, compact PLCs, and rack-mounted PLCs. There are also different software programs used to program and control PLCs.

• Types of PLCs include modular PLCs, compact PLCs, and rack-mounted PLCs

• Common software programs for PLC programmin...read more

FRL unit, hydraulic pump and different types of valve are all important components in mechanical engineering.

• FRL unit stands for Filter, Regulator, and Lubricator unit which is used to clean, regulate and lubricate compressed air in pneumatic systems.

• Hydraulic pump is used to convert mechanical power into hydraulic energy which is used to power hydraulic machinery.

• Different types of valves include ball valves, gate val...read more