Question

Match the casting methods with products.\[\begin{array}{|c|c|c|} \hline \textbf{Casting method} & & \textbf{Products} \\ \hline \text{P} & \text{Continuous casting} & \text{1 \; Thin and intricate shaped components} \\ \hline \hline \text{Q} & \text{Investment casting} & \text{2 \; Hollow axisymmetric parts (such as pipes)} \\ \hline \hline \text{R} & \text{Centrifugal casting} & \text{3 \; Slabs and strips} \\ \hline \end{array}\]

• A. P-3, Q-1, R-2
• B. P-2, Q-3, R-1
• C. P-3, Q-2, R-1
• D. P-2, Q-1, R-3

Hint:

Continuous casting → slabs; Investment casting → intricate shapes; Centrifugal casting → hollow circular parts like pipes.

Answer 1

The Correct Option is A

To match casting methods with their most typical products, we recall the characteristics of each process.

Step 1: Continuous casting (P).
This method is used for producing long, uniform cross-section products such as slabs, billets, and strips. Thus, P corresponds to: \[ 3\; \text{Slabs and strips} \]

Step 2: Investment casting (Q).
This method is used for thin, intricate, and complex-shaped components due to excellent dimensional accuracy and surface finish. Thus, Q corresponds to: \[ 1\; \text{Thin and intricate components} \]

Step 3: Centrifugal casting (R).
This is used for manufacturing hollow axisymmetric parts such as pipes and cylinders using radial centrifugal force. Thus, R corresponds to: \[ 2\; \text{Hollow axisymmetric parts} \]

Step 4: Final mapping.
\[ P-3, Q-1, R-2 \] This matches option (A).

Final Answer: (A)