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Hydraulics Questions Set 6:

Quiz Mode

How many types of reaction turbines are there?

Solution:

In a sub-critical flow, the water surface at a hump in the channel compared to the upstream depth is:

Higher

Same

Lower

Depends on the height of the hump

Solution:

A hydraulically efficient trapezoidal channel section has a uniform flow depth of 2 m. The bed width (up to 2 decimal places, expressed in m) of the channel is______.

Solution:

The flow through an expanding tube with either increasing or decreasing rate is?

Steady and uniform

Unsteady and non uniform

Steady and non uniform

Unsteady and uniform

Solution:

The most economical cross-section of a rectangular channel is one where the hydraulic radius is equal to

Half the depth

Half the breadth

Twice the depth

Twice the breadth

Solution:

An impulse turbine

Always operates submerged

Makes use of a draft tube

Operates by intial complete conversion to kinetic energy

Converts pressure head to velocity head through out the vanes

Solution:

The pre-jump Froude Number for a particular flow in a horizontal rectangular channel is 10. The ratio of sequent depths (up to nearest 2 decimal places) (i.e., post-jump depth to pre-jump depth) is______.

Solution:

A rectangular open channel has a width of 5 m and a bed slope of 0.001. For a uniform flow of depth 2 m, the velocity is 2 m/s. The Manning’s roughness coefficient for the channel is

0.033

0.017

0.002

0.050

Solution:

A 4 m rectangular channel carries 6 m³/s of water. The Manning’s ‘n’ of the open channel is 0.02. Considering g = 9.81 m/s², the critical velocity of flow (in m/s, round off to 2 decimal places) in the channel, is_______.

Solution:

A 3m wide rectangular channel carries a flow of 6 m³/s. The depth pf flow at a section P is 0.5 m. A flat-topped hump is to be placed at the downstream of the section P. Assume negligible energy loss between section P and hump, and consider g as 9.81 m/s2. The maximum height of the hump (expressed in m. up to 3 decimal places) which will not change the depth of flow at section P is______.

Hydraulics Questions Set 6:

How many types of reaction turbines are there?

Solution:

In a sub-critical flow, the water surface at a hump in the channel compared to the upstream depth is:

Solution:

A hydraulically efficient trapezoidal channel section has a uniform flow depth of 2 m. The bed width (up to 2 decimal places, expressed in m) of the channel is______.

Solution:

The flow through an expanding tube with either increasing or decreasing rate is?

Solution:

The most economical cross-section of a rectangular channel is one where the hydraulic radius is equal to

Solution:

An impulse turbine

Solution:

The pre-jump Froude Number for a particular flow in a horizontal rectangular channel is 10. The ratio of sequent depths (up to nearest 2 decimal places) (i.e., post-jump depth to pre-jump depth) is______.

Solution:

A rectangular open channel has a width of 5 m and a bed slope of 0.001. For a uniform flow of depth 2 m, the velocity is 2 m/s. The Manning’s roughness coefficient for the channel is

Solution:

A 4 m rectangular channel carries 6 m³/s of water. The Manning’s ‘n’ of the open channel is 0.02. Considering g = 9.81 m/s², the critical velocity of flow (in m/s, round off to 2 decimal places) in the channel, is_______.

Solution:

Solution:

Related Question Sets:

Related Topics:

Hydraulics Questions Set 6:

How many types of reaction turbines are there?

Solution:

In a sub-critical flow, the water surface at a hump in the channel compared to the upstream depth is:

Solution:

A hydraulically efficient trapezoidal channel section has a uniform flow depth of 2 m. The bed width (up to 2 decimal places, expressed in m) of the channel is______.

Solution:

The flow through an expanding tube with either increasing or decreasing rate is?

Solution:

The most economical cross-section of a rectangular channel is one where the hydraulic radius is equal to

Solution:

An impulse turbine

Solution:

The pre-jump Froude Number for a particular flow in a horizontal rectangular channel is 10. The ratio of sequent depths (up to nearest 2 decimal places) (i.e., post-jump depth to pre-jump depth) is______.

Solution:

A rectangular open channel has a width of 5 m and a bed slope of 0.001. For a uniform flow of depth 2 m, the velocity is 2 m/s. The Manning’s roughness coefficient for the channel is

Solution:

A 4 m rectangular channel carries 6 m3/s of water. The Manning’s ‘n’ of the open channel is 0.02. Considering g = 9.81 m/s2, the critical velocity of flow (in m/s, round off to 2 decimal places) in the channel, is_______.

Solution:

Solution:

Related Question Sets:

Related Topics:

A 4 m rectangular channel carries 6 m³/s of water. The Manning’s ‘n’ of the open channel is 0.02. Considering g = 9.81 m/s², the critical velocity of flow (in m/s, round off to 2 decimal places) in the channel, is_______.