[amp_mcq option1=”straight drop spillway” option2=”shaft spillway” option3=”chute spillway” option4=”ogee spillway” correct=”option1″]
The correct answer is: A. straight drop spillway
A straight drop spillway is a type of spillway that is used to control the flow of water from a reservoir or dam. It is a simple and inexpensive type of spillway, but it is not very efficient in terms of energy dissipation. Straight drop spillways are typically used in cases where there is limited space available for a spillway.
A shaft spillway is a type of spillway that is used to control the flow of water from a reservoir or dam. It is a vertical shaft that is connected to the reservoir or dam by a tunnel. The water flows down the shaft and then out into the river or stream below. Shaft spillways are typically used in cases where there is limited space available for a spillway.
A chute spillway is a type of spillway that is used to control the flow of water from a reservoir or dam. It is a long, narrow channel that is used to direct the flow of water away from the dam. Chute spillways are typically used in cases where there is a lot of space available for a spillway.
An ogee spillway is a type of spillway that is used to control the flow of water from a reservoir or dam. It is a curved structure that is designed to dissipate the energy of the water as it flows over the spillway. Ogee spillways are typically used in cases where there is a lot of water to be discharged from a reservoir or dam.
In case of non-availability of space due to topography, the most suitable spillway is a straight drop spillway. This is because a straight drop spillway is the simplest and most inexpensive type of spillway to construct. It is also the most efficient type of spillway in terms of energy dissipation.