GATE ME 2018 Set 2 — Question 24

MCQ+1 / -0.33EasyCasting TypesCastingManufacturing ProcessesRolling (Load & Torque)FormingExtrusion & Drawing

Manufacturing Processes → Casting → Casting Types

Last updated 5 September 2026

Question

Match the following products with the suitable manufacturing process Product Manufacturing Process P Toothpaste tube 1 Centrifugal casting Q Metallic pipes 2 Blow moulding R Plastic bottles 3 Rolling S Threaded bolts 4 Impact extrusion

Correct answer (C) P-4, Q-1, R-2, S-3 Solution The correct matching of products to their manufacturing processes is: P (Toothpaste tube): These are typically made from soft metals like aluminum or lead using Impact extrusion (4) . Q (Metallic pipes): Large, hollow cylindrical parts like metallic pipes are often produced using Centrifugal casting (1) . R (Plastic bottles): Hollow plastic containers are manufactured using Blow moulding (2) . S (Threaded bolts): High-strength threads on bolts are commonly produced by thread Rolling (3) . Thus, the correct sequence is P-4, Q-1, R-2, S-3, which corresponds to option (C). Turn this into a strength. Explore AI-powered practice and doubt support with Success Tracker.

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Correct answer (C) P-4, Q-1, R-2, S-3 Solution The correct matching of products to their manufacturing processes is: P (Toothpaste tube): These are typically made from soft metals like aluminum or lead using Impact extrusion (4) . Q (Metallic pipes): Large, hollow cylindrical parts like metallic pipes are often produced using Centrifugal casting (1) . R (Plastic bottles): Hollow plastic containers are manufactured using Blow moulding (2) . S (Threaded bolts): High-strength threads on bolts are commonly produced by thread Rolling (3) . Thus, the correct sequence is P-4, Q-1, R-2, S-3, which corresponds to option (C).

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