\ Which gate is not suitable for smaller spillway? - Dish De

Which gate is not suitable for smaller spillway?

This is a question our experts keep getting from time to time. Now, we have got the complete detailed explanation and answer for everyone, who is interested!

Explanation: Drum gates are suitable for longer spans of the order of 40 m or so and medium heights of 10 m or so. The drum is enclosed on all the three sides as well as on the ends thus forming a water-tight vessel. It requires a large recess and is not suitable for small spillways.

In which spillway The gates are not required?

Uncontrolled spillways do not require any gate. Controlled spillways are provided with gates.

What are the types of spillway gates?

Types of Spillway Gates
  • Dripping shutters or permanent flashboards.
  • Stop logs and needles.
  • Radial gate or tainter gates.
  • Drum gates.
  • Vertical lift gates or rectangle gates.

Which of the following is the simplest type of spillway and may be constructed on small bunds or thin arch dams?

Explanation: Straight drop weir or Overfall spillway is a low weir and simple vertical fall type structure. It is the simplest type of spillway and can be constructed on small bunds, thin arches, etc.

What are spillway gates?


Spillways : Types of Gates for Spillway Crests (Part 1/3) 7/9

43 related questions found

What is a drum gate?

: a hinged gate at the top of a dam consisting of a horizontal cylindrical sector that can be raised from its compartment to increase the height of the spillway.

What are Sluice gates used for?

The gate that controls a sluice is a valve known as a “sluice gate.” These valves are designed to seal in one direction and commonly are used to control water levels and flow rates in rivers and canals. They also are used in wastewater treatment plants.

Is only suitable for small bunds of thin arch dams?

Straight Drop Spillway:

A straight drop spillway consists of low height weir wall having its downstream face roughly or perfectly vertical straight drop spillway are most suitable for thin arch dams, earthen dams, or bands.

Which type of spillway is the simplest?

The trough spillway or chute spillway is the simplest type of a spillway which can be easily provided independently and at low costs. It is lighter and adaptable to any type of foundations and hence provided easily on earth and rockfill dams.

Which of the following spillway is simplest type of spillway which can be provided independently & at lowest cost?

Explanation: The trough or chute spillway is adaptable to any type of foundations and is the simplest type of spillway. It can be easily provided independently at low costs but it requires ample room adjacent to the dam.

What is spillway and its types?

A spillway is a hydraulic structure built at a dam site for diverting the surplus water from a reservoir after it has been filled to its maximum capacity. Spillways are classified into different types on the basis of the arrangement of the control structure, a conveyance channel and a terminal structure.

What is difference between weir and barrage?

A weir is an impermeable barrier that is built across a river to raise the water level on the upstream side. … On the other hand, a barrage involves adjustable gates installed over a dam to maintain the water surface at different levels and at different times. The water level is adjusted by opening the valves or gates.

What is chute spillway?

Chute spillway is an open channel like structure, which is constructed on steep slope of the gully face with a suitable inlet and outlet. It usually consists of an inlet, vertical curve section, steep-sloped channel and outlet. The major part of the drop in water surface takes place in a channel.

Which gate is type of non automatic gates?


Is the one in which the spillway and outlets are not controlled by gates or valves?

A retarding reservoir is one in which the spillway and outlets are not controlled by gates or valves. Instead, they moderate the flood peak by passing discharge downstream, depending upon reservoir elevation.

What are the essential requirements of spillway?

Essential Requirements of Spillway:

The Spill way’s bounding surface must be erosion resistant to withstand the high velocity flow created due to the drop in the water surface from the reservoir level upstream to the tail water level downstream to the dam.

Which is known as spillway?

A spillway is a structure used to provide the controlled release of water from a dam or levee downstream, typically into the riverbed of the dammed river itself. In the United Kingdom, they may be known as overflow channels. … Spillways can include floodgates and fuse plugs to regulate water flow and reservoir level.

Which of the following is a type of spillway?

The more common types are briefly described below: Drop Spillway. Ogee Spillway. Siphon Spillway.

Which spillway is designed in India by Ganesh Iyer?

Which of the following spillway is designed in India by Ganesh Iyer? Explanation: Volute siphon spillway consists of a vertical shaft circular in the section provided with a cap covering.

Which spillway is least suitable for an earthen dam?

The least suited spillway for earthen dams is the Ogee spillway as these are overflown spillways that cannot be constructed on the earthen dam as it will wash away soil and pose other problems also.

What is spillway or weir?

A weir is an impervious barrier constructed across a river to raise the water level on the upstream side. … In a weir the water overflows the weir, but in a dam the water overflows through a special place called a spillway. Weirs have traditionally been used to create mill ponds.

What is side channel spillway?

Definition: A side channel spillway is one whose control weir is placed alongside and approximately parallel to the upper portion of the spillway discharge channel. Flow over the crest falls into a narrow trough opposite the weir, turns approximately 90 degree and then continues into the main discharge channel.

What is Swiss gate?

A sluice gate is traditionally a wood or metal barrier sliding in grooves that are set in the sides of the waterway. Sluice gates commonly control water levels and flow rates in rivers and canals. They are also used in wastewater treatment plants and to recover minerals in mining operations, and in watermills.

What is a weir gate?

Weir Gates are designed to control upstream water elevation and can provide a rough estimate of flow using notched gates via the downward- opening design. Weir gates function like slide gates, except that the disc opens downward allowing outflow to weir over the top of the gate.

What is a switch gate?

[′swich·iŋ ‚gāt] (electronics) An electronic circuit in which an output having constant amplitude is registered if a particular combination of input signals exists; examples are the OR, AND, NOT, and INHIBIT circuits. Also known as logical gate.