1. Silt charge is defined as _____.
[A] Average size of silt particle
[B] Volume of silt particles flowing with unit volume of water
[C] Weight of silt per unit volume of water
[D] Weight of silt per unit discharge of water
Answer: Option C
2. _____ is an irrigation structure constructed across a canal to lower down its water level and destroy the surplus energy liberated from the falling water which may otherwise scour the bed and banks of the canal.
[A] Canal escape
[B] Canal falls
[C] Head regulator
[D] Canal outlets
Answer: Option B
3. The earthen embankments constructed parallel to the river at some suitable distance for protection from flooding, are called _____.
[A] Groynes
[B] Guide banks
[C] Levees
[D] Terraces
Answer: Option C
4. An irrigation canal has a steady discharge Q at a section where a cross regulation gate is provided for control purposes. If the gate of the regulator, which is normally fully open, is suddenly lowered down to a half open position then a rapidly varied unsteady flow results. In such a case, it would take the form of a
[A] +ve surge moving u/s and a -ve surge moving d/s
[B] +ve surge moving d/s and a -ve surge moving u/s
[C] +ve surge moving u/s and a +ve surge moving d/s
[D] -ve surge moving u/s and a -ve surge moving d/s
Answer: Option A
5. In glacis type fall, the energy is dissipated due to _____.
[A] bucket rollers
[B] hydraulic jump
[C] ground rollers
[D] impact
Answer: Option B