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Following are the statements regarding sediment loads.
(A) . Bed load is associated with the movement of coarse particles along the bed surface through sliding, rolling and saltation
(B) . Bed load forms less than 25 % portion of total load
(C) . Suspended load of a stream is not measured by sampling the stream flow.
Choose the correct answer from the options given below:
EXPLANATION
Physical, Gravimetric & Aerodynamic Propertie
- Mechanisms of Sediment Transport in Streams:
- Bed load consists of coarse particles moving in contact with or near the channel bed by rolling, sliding, and saltation (bouncing). (True)
- In natural alluvial rivers, bed load typically constitutes less than 10% to 25% of the total sediment load, while suspended load constitutes 75% to 90%. (True)
- Suspended load is measured directly in streams using depth-integrating (e.g., US DH-48) or point-integrating samplers. The statement says it is not measured, which is False.
- Conclusion: Statements (A) and (B) only are correct (Option 1).
Correct option: (1) (A) and (B) only.
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