1. Cross drainage works are constructed:
(A) Above River
(B) Below River
(C) Across River
(D) All of these
2. Primary purpose of cross drainage works:
(A) Prevent obstructions of water course
(B) Ensure smooth flow of water
(C) To prevent flooding
(D) All of these
3. Aqueduct is a:
(A) Road
(B) Bridge
(C) Canal
(D) Path
4. Free board for aqueduct is taken as:
(A) 0.50 m
(B) 0.40 m
(C) 0.80 m
(D) 0.20 m
5. For siphon aqueduct:
(A) Bed is higher than canal
(B) Bed is on same level
(C) None of these
(D) Bed is depressed below the canal
6. Drainage inlet is ___________ for low discharge:
(A) Complicated structure
(B) None of these
(C) Simple structure
(D) Economical structure
7. For super passage:
(A) Canal is taken below the drain
(B) Canal is taken above the drain
(C) Canal is taken at same level
(D) Both A & B
8. Siphon super passage is opposite to:
(A) Super passage
(B) Level crossing
(C) Siphon aqueduct
(D) All of these
9. Level crossing is constructed:
(A) When drain and canal, both are at same level
(B) When discharge in canal is low
(C) When drain and canal are at a different level
(D) When discharge in drain is higher
10. Crest wall is provided:
(A) Parallel to drain
(B) Incline to drain
(C) Across the drain
(D) All of these
11. For drain outlet:
(A) Crest of river is kept above
(B) Drain regulator is at the FSL upstream side
(C) No crest wall is provided
(D) All of these
12. Which one is the last structure of minor:
(A) Outlet
(B) Tail escape
(C) Aqueduct
(D) Level crossing