Water flow in the river during flood can be categorised as the __________ flow.

Consider the following statements regarding channel routing : 1. In channel routing, the flood hydrograph at various sections of the reach is predicted by considering a channel reach and an input hydrograph at the upstream end. 2. As the flood wave moves down the river, the shape of the wave does not change. 3. Flood waves passing down a river have their peaks attenuated due to friction. 4. The addition of lateral inflows can cause an increase of attenuation. Which of the above statements are not correct?

A

1 and 3 only

B

2 and 3 only

C

1 and 4 only

D

2 and 4 only

Statement I): When a loop rating curve is prepared at a gauging station when a flood wave passes, the maximum discharge occurs earlier than the maximum stage. Statement II): When a flood wave passes through a reach, during rising stages, some water may get into depressions on the floodplains of the river and, may be, only part of this spill returns to the channel runoff when flood levels recede.

A

Both Statement I) and Statement II) are individually true and Statement II) is the correct explanation of Statement I)

B

Both Statement I) and Statement II) are individually true but Statement II) is not the correct explanation of Statement I)

C

Statement I) is true but Statement II) is false

D

Statement I) is false but Statement II) is true

The water of the river Ganga has always been used for several purposes in India. It is used for domestic uses by the locals, for religious ceremonies by the whole country and for irrigation purposes by the farmers. This has resulted in the pollution of the river and the water of the river today is extremely dirty. It would take Government a huge amount of money to clean the river and yet the Government chose an action plan to clean the river rather than stopping people from using the river. The statements above, if true, best support which of the following assertions?

A

The water of the river is the property of the people and they can pollute it as much as they like.

B

The Government cannot stop people from using Ganga's water as people would disobey the Government and break the laws in rebellion.

C

The water is also used by farmers, so the use of the river water cannot be stopped and pollution is just one of the consequences that we have to live with.

D

The Government has a lot of funds to spend on the cleaning of the river water.

E

Stopping the use of the river water would only bereft people of water and would do nothing to clean the water, whereas an action plan works both ways.

Given below are three quantities named A, B and C. Based on the given information, determine the relation among the three quantities. Quantity A∶ A 30 litre mixture of wine and water has wine and water in the ratio 5∶ 7. How much water must be drawn off so that the ratio of wine and water becomes 25∶ 19? Quantity B∶ A 35 litre mixture of wine and water has wine and water in the ratio 1∶ 3. How much water must be drawn off so that the ratio of wine and water becomes 1.75∶ 3.35? Quantity C∶ A 27 litre mixture of wine and water has wine and water in the ratio 3∶ 2. How much water must be drawn off so that the ratio of wine and water becomes 81∶ 11?

A

A = B = C

B

A > B > C

C

B > C > A

D

A > C > B

E

A < B > C

Given below are three quantities named 1, 2 and 3. Based on the given information, you have to determine the relation between the three quantities. You should use the given data and knowledge of Mathematics to choose between the possible answer. Quantity 1: Manish can row at a speed of 4.5 km/h in still water and rows to a certain upstream point and back to the starting point in a river which flows at 1.5 km/hr. Find his average speed for total journey. Quantity 2: A man can row 6 km/h in still water. It takes him twice as long to row up as to row down the river. Find the rate of stream. Quantity 3: The rate of flow of river water is 4 km/h. A boat goes up 6 km and back to the starting point in 2 hour. Find the speed of the boat in still water.

A

If Quantity 1 is maximum

B

If Quantity 2 is maximum

C

If Quantity 3 is maximum

D

If Quantity 1 = Quantity 2 = Quantity 3 or relation can’t be established

E

If any two quantities are same and greater than the third quantity

Which of the following statement/s is/are correct? a. Article-111 of the constitution deals wit the definition of money bills. b. A bill categorised as financial bill under Article-117(3) can be introduced only in the Lok Sabha. c. A bill categorised as financial bill under Article9117(1) cannot be rejected or amended by the Rajya Sabha.

A

Only a

B

b and c

C

None of the above

D

Only c

Bottled water is drinking water (e.g., well water, distilled water, mineral water, or spring water) packaged in PET Bottle or Glass Water Bottles. Bottled water is comprehensively regulated by the U.S. Food and Drug Administration (FDA) as a packaged food product. By law, the FDA regulations for bottled water must be at least as stringent as the Environmental Protection Agency standards for tap water. What inference can be drawn from the above passage?

A

Bottled water is more expensive than tap water.

B

Bottled water is more nutritious than tap water.

C

Tap water is monitored by the FDA.

D

Bottled water can pose an environmental risk.

A series is given with one term missing. Select the correct alternative from the given options that will complete the series? Godavari river, Krishna river, Tungabhadra river, Sabari river, Paleru river, Gosthani river, ?

A

Ganga river

B

Kundu river

C

Mandakini river

D

Tons river

Compare the Himalayan river with the Peninsular river based on the following comparisons : 1. Most of the Himalayan rivers are perennial, whereas most of the Peninsular rivers are rainfed. 2. The gradient of the Himalayan river is steeper than the Peninsular river. 3. The Peninsular river causes more erosion on its way in comparison to the Himalayan river. Choose the correct answer from the options given below.

A

1 and 2 only

B

2 and 3 only

C

1 and 3 only

D

1, 2 and 3

E

None of the above/More than one of the above

Statement : Incessant rain for the past several days has posed the problem of overflowing and flood as the river bed is full of silt and mud.

Courses of Action :
I. The people residing near the river should be shifted to a safe place.
II. The people should be made aware about the imminent danger over radio/television.
III. The silt and mud from the river bed should be cleared immediately after the receding of the water level.

Water flow in the river during flood can be categorised as the __________ flow.

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