14.

15.

16.

17.

18.

19.

On an immersed body in a flowing fluid, the drag force is due to
(A) force of buoyancy
(8) recirculation regions
(C) € dynamic fluid force component in the direction of flow
(D) _ stagnation pressure points

The range of Froude number of a weak hydraulic jump is
(A) 7 (B) 1725
(൭ 2545 (0) 456090

A rainfall of intensity 30 mm/hour is occurring over a catchment area of 2 km?. The
duration of the rainfall is 3 hours. It was calculated that the total surface runoff reaching
the river is 60,000 നി. The total rainfall and total abstractions in this rainfall are

(A) 6cm,6 cm (8) 9cm,6 cm

(0) 6cm,9 cm (2) 9cm, 9 cm

The total rainfall for a 3 hour duration storm is 9 cm. The loss rate over the catchment is
2 cm/hour. The peak of the flood hydrograph is 330 m/s and the base flow calculated
was 30 m?/s. The peak of the 3- hour unit hydrograph is

(^) 100 m/s (B) 33.333 m3/s (C) 50 m/s (D) 110 m/s

The available moisture content of soil with depth is 20 cm/m. The root zone depth of the
crop being cultivated is 1 ൩. The field is to be irrigated when 50% of the available
moisture content in the root zone is depleted. The daily consumptive use of water for the
crop is 10 mm. The water application efficiency over the field is 50%. The frequency of
irrigation and depth of water for the cultivation are

(A) 5 days, 10 cm (B) 10 days, 10 cm

(C) 10 days, 20 cm (D) 8 days, 20cm

The current metre rating curve is given in Fig. 3. The maximum number of revolutions
permitted is 20,000 per second. The same current metre is used for the measurement of a
stream velocity and it was observed that the total number of revolutions in one minute
was 6000. The velocity of the water in the stream is

0.6
0.5
3 0.4
£03
3 | [ of line = 0.01
3 0.2 Y-intercept is 0.12
>
0.1
0 ⊽∣∣∣↴↴⋅
0 10 20 30 40
Revolutions/s Current meter
Fig. 3
(A) 5.2 m/s (B) 0.80 m/s (0) 1.00 m/s (D) 1.12 m/s
⊽⊽ 0 है 5 ⊽⊽ 0 067/2022

2.70.)