Canal Fall - Short Questions and Answers

Canal Fall - Short Questions and Answers Points : canal fall - short questions and answers Q:1 Write the basic requirement of canal fall. Ans: (1) suitable energy dissipation arrangement. (2) Fluming (3) crest level (4) low cost Q:2 Write down the classification of falls. Ans: Falls may be divided into four principal classes with reference to the approach conditions
(1) Falls designed to maintain the depth discharge relation
(2) Falls designed to maintain a fixed supply level in the cannaI above the work (3) Falls designed to admit the variations of the surface level above the work at the will of the operator
(4) Miscellaneous Types Q.3: Write down the name of different types of canal falls. Ans: (1) Vertical drop falls (2) sloping glucis type (3) Sarda type fail (4) Glacis type canal fall. Q.4: Define the vertical drop falls. Ans: Vertical drop falls consist of a vertical retaining wall, a cistern to take the impact of the falling jet and friction blocks to destroy the remaining energy. They may or may not be flumed. Q.5: Write down the name of different parts of Sarda type fall. Ans: (1) Crest
(2) U/s approach
(3) Impervious floor
(4) Bed pitching.