Question

Match List-I (Relative position of canal and drainage channel) with List-II (Type of cross drainage work) and select the correct answer using the code given below the lists:
List-I
A. Canal taken above the drainage channel at its grade
B. Drainage channel taken above the canal at its bed slope
C. Canal taken below the drainage channel
D. Drainage channel taken below the canal
List-II
1. Canal siphon
2. Drainage siphon
3. Aqueduct
4. Super passage

• A. A - 2, B - 4, C - 1, D - 3
• B. A - 3, B - 1, C - 4, D - 2
• C. A - 2, B - 1, C - 4, D - 3
• D. A - 3, B - 4, C - 1, D - 2

Answer 1

The correct option is D A - 3, B - 4, C - 1, D - 2

An aqueduct is a watercourse constructed to convey water, which carries canal above the drainage channel at its grade. Drainage siphon is similar to aqueduct except that stream bed is depressed locally below the canal. Super passage is reverse of aqueduct drainage channel is carried above the canal at its bed slope. Canal siphon is similar to super passage but canal is taken below drainage channel.