Tata Projects Mechanical Technician Interview Questions and Answers

Q1. About my past experiences and myself.
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Q1. What is your salary expectations.
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Work relevance discussion with others participants.

Q1. Design inputs for s&t heat exchanger
Ans. 
Design inputs for s&t heat exchanger
• Fluid type and flow rate

• Temperature range and desired heat transfer rate

• Pressure drop limitations

• Material selection for tubes and fins

• Space and weight constraints

• Environmental factors such as corrosion and fouling

• Operating conditions and maintenance requirements
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Q2. Design perameters, tube details, moc,
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Q1. About mechanical maintenance and operation
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Q2. Types of gear boxes and gears used in taht
Ans. 
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
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Q3. Types of conveyors and maintenance to conveyor
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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
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Q4. Trouble shooting on blowers and compressors
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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...read more
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Q5. Overhauling of gear boxes and fans compressors
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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 ove
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Q1. About strl erection
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Q2. About manpower handeling
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Q3. About codes and standards
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Q4. About raw material
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Q5. About contractor handling
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Q6. About hot work and height job executing
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Q7. About erection procedures of structure
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Q8. About safety precautions during hot job
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Q1. General past experience questions & technical questions related to pump curves, packages, past equipment handled.
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Q1. What is the definition of Lathe?
Ans. 
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, borin...read more
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Q2. What is the Boiler Drum? & how it's work
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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...read more
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Q1. Most questions were from prior experience. Since my expertise is into Boilers, Fired heaters, Flares, Packages etc., questions were related to my exposure to these packages. Also, I was asked if I was ok t...read more
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Q1. Only salary negotiation was done along with basic questions like reason for leaving etc.
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