Question
Match the following lists: Select the correct answer using the code given below: List-I (Cement mortar for different works) List-II (Proportion of cement : Sand in mortar) P. Normal brickwork 1. 1:4 Q. Plastering work 2. 1:3 R. Grouting cavernous rocks 3. 1:6 S. Guniting 4. 1:1.5
The correct answer is
| P | Q | R | S |
| 3 | 1 | 4 | 2 |
Cement Mortar Proportions for Construction Works
The question asks to match different construction activities (List-I) with their standard cement and sand proportions (List-II).
Matching Works with Mortar Ratios
- P. Normal brickwork: Typically uses a cement:sand ratio of $1:6$. This matches proportion 3.
- Q. Plastering work: A common proportion for plastering is $1:4$ (Cement:Sand). This matches proportion 1.
- R. Grouting cavernous rocks: This specific application uses a cement:sand ratio of $1:1.5$. This matches proportion 4.
- S. Guniting: This technique often uses a richer mix, such as $1:3$ (Cement:Sand). This matches proportion 2.
Correct Code Determination
The correct matches identified are:
- P = 3
- Q = 1
- R = 4
- S = 2
This forms the code 3142.
| P | Q | R | S |
| 3 | 1 | 4 | 2 |
This combination corresponds to Option B.
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