We are tasked with matching each component with its corresponding manufacturing process.
Step 1: Component P (Aluminum alloy piston for IC engine)
The aluminum alloy piston for an internal combustion engine is typically manufactured using sand casting, a process where molten metal is poured into a mold made of sand. This corresponds to Option (D) for P-1.
Step 2: Component Q (Low carbon steel oil pan)
A low carbon steel oil pan is usually produced using deep drawing, a process where the sheet metal is drawn into a die to form the desired shape. Hence, Q-3 corresponds to deep drawing.
Step 3: Component R (Tungsten carbide cutting tool insert)
Tungsten carbide cutting tool inserts are made using powder metallurgy, where tungsten carbide powder is pressed and sintered to form the tool insert. Hence, R-2 corresponds to powder metallurgy.
Step 4: Component S (Plastic bottle)
A plastic bottle is manufactured using blow molding, a process in which molten plastic is inflated inside a mold to create hollow shapes like bottles. Therefore, S-4 corresponds to blow molding.
Thus, the correct matching is:
- P-1: Sand casting
- Q-3: Deep drawing
- R-2: Powder metallurgy
- S-4: Blow molding
Final Answer: (D) P-1, Q-3, R-2, S-4