APL Apollo Tubes Production Planner Interview Questions and Answers

Q1. What is stainless steel ?
Ans. 
Stainless steel is a corrosion-resistant alloy made of iron, chromium, nickel, and other elements.
• Stainless steel is known for its resistance to corrosion, rust, and staining.

• It is commonly used in various industries such as construction, automotive, and food processing.

• There are different grades of stainless steel, each with varying levels of corrosion resistance and strength.

• Examples of stainless steel applications i...read more
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Q2. Why annealing we needed?
Ans. 
Annealing is needed to relieve internal stresses, improve ductility, and soften the material for further processing.
• Annealing helps to remove internal stresses in the material, making it more ductile and less prone to cracking.

• It also helps to soften the material, making it easier to shape or machine.

• Annealing can improve the microstructure of the material, leading to better mechanical properties.

• Examples of materials ...read more
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General questions from graduation subjects & questions from Quantitative aptitude. Overall paper difficulty was at medium level.

Q1. Introduce yourself. Different types of measuring instruments & their applications, least count.
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Q2. Project details done in graduation last semester.
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Q3. Applications of measuring instruments.
Ans. 
Measuring instruments are used in various applications to accurately measure physical quantities.
• Quality control in manufacturing processes

• Monitoring and controlling environmental conditions

• Testing and calibration of equipment

• Research and development

• Process optimization and efficiency improvement

• Data collection and analysis

• Safety and hazard detection

• Medical diagnostics and patient monitoring
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Q4. Different types of castings & their uses.
Ans. 
Different types of castings & their uses
• Sand casting: used for large and complex shapes like engine blocks

• Investment casting: used for intricate and detailed parts like jewelry

• Die casting: used for high-volume production of small to medium-sized parts like car components

• Centrifugal casting: used for cylindrical shapes like pipes and tubes

• Continuous casting: used for producing long and continuous shapes like steel bille
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Q5. Manufacturing processes & their applications.
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Manufacturing processes are techniques used to transform raw materials into finished products.
• Casting: pouring molten metal into a mold to create a solid object (e.g. automotive engine blocks)

• Machining: removing material from a workpiece using cutting tools (e.g. CNC milling)

• Forming: shaping materials through deformation (e.g. sheet metal bending)

• Joining: combining multiple parts into a single entity (e.g. welding)

• Addi...read more
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Q6. Difference between first and third angle projection in mechanical drawings.
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First angle projection and third angle projection are two different methods used in mechanical drawings to represent a 3D object on a 2D plane.
• First angle projection is commonly used in Europe and Asia, while third angle projection is commonly used in North America.

• In first angle projection, the object is placed in the first quadrant and the views are projected onto the planes surrounding the object.

• In third angle proj...read more
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