Matching Temporary Structures with Functions

This solution involves matching the temporary construction structures listed in Group I with their appropriate functions from Group II.

Group I: Temporary Structures

• P: Scaffolding - Used to support platforms for workers and materials.
• Q: Formwork - Acts as a mould for concrete structures.
• R: Shoring - Provides temporary support to unstable or unsafe structures.
• S: Underpinning - Strengthens or supports an existing foundation.

Group II: Functions

• 1: To support unsafe structure
• 2: To support platforms for workmen and materials at raised height during construction
• 3: Removal of water from pits
• 4: Mould for RCC Structure
• 5: Strengthening the existing foundation

Structure-Function Matching

The correct matching is determined as follows:

• Scaffolding (P) supports platforms at height, matching function 2.
• Formwork (Q) serves as a mould for concrete, matching function 4.
• Shoring (R) supports unsafe structures, matching function 1.
• Underpinning (S) strengthens foundations, matching function 5.

Final Matched Option

Combining these matches gives the result: P-2, Q-4, R-1, S-5. This corresponds to the first option.