A weir is used to measure the large water discharge rate from a river or from an open channel. A weir is not of __________ shape.

A weir is said to be narrow-crested weir, if the width of the crest of the weir is __________ half the height of water above the weir crest.

A

Equal to

B

Less than

C

More than

D

None of these

In a broad-crested weir, the discharge is maximum if the head of water on the downstream side of weir is __________ the head of water on the upstream side of weir.

A

Equal to

B

One-third

C

Two-third

D

Three-fourth

A weir is said to be broad crested weir, if the width of the crest of the weir is ________ half the height of water above the weir crest.

A

Equal to

B

Less than

C

More than

D

None of these

3/4th of square were taken to form shape A and the rest was made to form shape B. Shape A was divided into four equal squares (Shape C), what will be the ratio of the one shape C to one shape B.

A

1:4

B

3:16

C

1:2

D

3:4

When the water level on the downstream side of a weir is above the top surface of a weir, the weir is known as

A

Narrow-crested weir

B

Broad-crested weir

C

Ogee weir

D

Submerged weir

The ratio of the depth of flow to the diameter of the channel for maximum discharge in a circular channel in open channel flow is

A

0.1

B

0.55

C

0.95

D

1.85

The critical depth for a channel is given by (where q = Unit discharge (discharge per unit width) through the channel)

A

$${\left( {\frac{{\text{q}}}{{\text{g}}}} \right)^{\frac{1}{2}}}$$

B

$${\left( {\frac{{{{\text{q}}^2}}}{{\text{g}}}} \right)^{\frac{1}{3}}}$$

C

$${\left( {\frac{{{{\text{q}}^3}}}{{\text{g}}}} \right)^{\frac{1}{4}}}$$

D

$${\left( {\frac{{{{\text{q}}^4}}}{{\text{g}}}} \right)^{\frac{1}{5}}}$$

The ratio of rate of change of the discharge of an outlet to the rate of change of the discharge of distributing channel is called

A

proportionality

B

flexibility

C

setting

D

sensitivity

The mixing vat in a factory receives liquid ingredients through six separate value--- labeled R.S.T.U,Y and Z -- each of which has exactly two settings: open and closed.The mixing vat operator must ensure that each valve is set open or closed according to the following conditions: If T is open, both S and Z must be closed, R and Z cannot both be closed at the same time; If Y is closed, Z must also be closed;S and U cannot both be open at the same time. If Z is open, which of the following must be true?

A

S is open

B

T is open

C

U is open

D

y is open

The mixing vat in a factory receives liquid ingredients through six separate value--- labeled R.S.T.U,Y and Z -- each of which has exactly two settings: open and closed.The mixing vat operator must ensure that each valve is set open or closed according to the following conditions: If T is open, both S and Z must be closed, R and Z cannot both be closed at the same time; If Y is closed, Z must also be closed;S and U cannot both be open at the same time. If R is closed and U is open, which of the following must be true?

A

S is open

B

T is open

C

T is closed

D

Y is closed

A weir is used to measure the large water discharge rate from a river or from an open channel. A weir is not of __________ shape.

Related Questions