Aditya Birla Group Junior Engineer Mechanical Maintenance Interview Questions and Answers

Q1. How does the Differential work.
Ans. 
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
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Q2. How to work Dumper Cooling system.
Ans. 
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
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Q3. How to work, work permit system during maintenance activities.
Ans. 
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
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Q4. Which grade oil is used in Hydraulic system.
Ans. 
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
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Q1. Why welding is important?
Ans. 
Welding is important for joining metal components together in various industries.
• Welding is essential for constructing buildings, bridges, and pipelines.

• It is crucial in manufacturing industries for assembling machinery and equipment.

• Welding is used in automotive industry for fabricating car frames and components.

• It plays a key role in aerospace industry for building aircraft and spacecraft.

• Welding is also important in...read more
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Q2. Which meterial commonly used welding?
Ans. 
Commonly used welding materials include steel, aluminum, and stainless steel.
• Steel is commonly used in welding due to its strength and versatility.

• Aluminum is often used for its lightweight properties and resistance to corrosion.

• Stainless steel is popular for its durability and ability to withstand high temperatures.
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Q1. Technical questions
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Q2. Mantinanc questions
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Q3. Mantinanc questions
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Q4. Mantinanc engineer
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Q5. Mechanical engineering
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Q1. About crusher type model, make general maintenance About compressor, water pump. About raw mill model, make & general maintenance schedule
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Q1. Basics mechanical question
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Q2. What is a thermodynamics
Ans. 
Thermodynamics is the branch of physics that deals with the relationships between heat and other forms of energy.
• Thermodynamics studies the transfer of energy in the form of heat and work.

• It involves concepts like entropy, temperature, and energy conversion.

• Examples include the efficiency of engines, refrigeration systems, and phase transitions in materials.
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Q3. Third law of motion
Ans. 
The third law of motion states that for every action, there is an equal and opposite reaction.
• States that when one object exerts a force on a second object, the second object exerts an equal and opposite force on the first object

• The forces always occur in pairs

• Examples include a rocket pushing against the ground to lift off, or a person pushing against a wall
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Q4. Types of bearing
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Types of bearings include ball bearings, roller bearings, plain bearings, and fluid bearings.
• Ball bearings: use balls to reduce friction between two surfaces

• Roller bearings: use cylindrical rollers to reduce friction

• Plain bearings: have a simple surface with no moving parts

• Fluid bearings: use a thin layer of liquid or gas to reduce friction
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Q1. Tell me about yourself.
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Mathematics,Reasing, Technical

Q1. Technical Question CNC Machine ,
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Q2. CNC Machine And Technical
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Q1. FRL unit, Hydraulic pump and different types of valve
Ans. 
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
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Q2. Pump model and pneumatic cylinder
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Q1. Salary negotiable and notice period
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Q2. How much hike given by your company
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