Match the following lists :
| List-I | List-II |
|---|---|
| P.Bridges | 1.Gamhar, haritaki |
| Q.Scientific Instruments | 2.Red cedar, satin, sissoo |
| R.Railway carriage | 3.Guava |
| S.Shuttering | 4.Black wood, iron wood |
Select the correct answer using the code given below :
- A1 2 3 4
- B2 3 4 1
- C3 2 4 1
- D4 2 1 3Correct
Solution
Concept
Timbers for different uses
Step-by-step solution
1. Bridges need heavy, strong and durable woods: black wood, iron wood → 4. 2. Scientific instruments need fine-grained woods: red cedar, satin, sissoo → 2. 3. Railway carriage: gamhar and haritaki → 1. 4. Shuttering: cheap local timber such as guava → 3.
Explanation
Timbers are selected on strength, durability and workability for each use. Only code (d) gives this combination.
Why the other options are wrong
The other codes assign light or fine woods to bridges.
Shortcut
Bridges = ironwood; shuttering = cheap wood.
Correct answer: D) 4 2 1 3