MCQ 1 According to Lacey, in regime conditions

(A) Silt is kept in suspension by vertical components of eddies (B) Entire cross-section of the channel is generated at all points by the forces normal to the wetted perimeter (C) Both (A) and (B) (D) Neither (A) nor (B)

MCQ 13 An outlet is said to be proportional if its flexibility, is

(A) Zero (B) Less than one (C) More than one (D) One

MCQ 2 The level of the floor of a syphon aqueduct can be obtained

(A) By subtracting the depth of the culvert from the canal bed level (B) By subtracting the thickness of culvert plus the depth of the culvert from the canal bed level (C) Both (A) and (B) (D) None of these

MCQ 11 For a standing crop, the consumptive use of water is equal to the depth of water

(A) Transpired by the crop (B) Evaporated by the crop (C) Transpired and evaporated by the crop (D) Used by the crop in transpiration, evaporation and also the quantity of water evaporated from adjacent soil

MCQ 3 Bed bars in a canal are provided

(A) To watch the general behaviour of canal (B) To measure the discharge (C) To raise the supply level (D) To control the silting

MCQ 14 For the design of major hydraulic structures on the canals, the method generally preferred to, is based on

(A) Bligh's theory (B) Electrical analogy method (C) The relaxation method (D) Khosla's method of independent variables

MCQ 4 Pick up the incorrect statement from the following:

(A) In free flooding irrigation, water is admitted at one corner of a field and is allowed to spread over the entire area (B) In check method of irrigation, the field is divided into smaller compartments and water is admitted to each in turn (C) In furrow irrigation water is admitted between the rows of plants in the field (D) None of these

MCQ 15 Irrigation canals are generally aligned along

(A) Ridge line (B) Contour line (C) Valley line (D) Straight line

MCQ 5 In a canal syphon, the flow is

(A) Under atmospheric pressure (B) Pipe flow (C) With critical velocity (D) Under negative pressure

MCQ 12 Pick up the correct statement from the following

(A) Approach of the water line in a flumed channel section should not be steeper than 22 (B) Departure of the water line from a flumed channel section should not be steeper than 30 (C) Approach of the water line should not be steeper than 30? and departure line not steeper than 22 in a flumed channel section (D) Approach and departure of the water line in a flumed channel section, should not be steeper than 22

MCQ 10 The main function of a diversion head works of a canal from a river, is

(A) To remove silt (B) To control floods (C) To store water (D) To raise water level

MCQ 6 Pick up the correct statement from the following:

(A) The full supply level of a canal should be above ground level (B) According to Lacey, regime conditions require a particular slope for a given discharge and silt factor (C) In case the ground slope is less than the required bed slope, the silt factor must be reduced by permitting the entry of coarse silt (D) All of the above

MCQ 7 A river is said to be of

(A) Aggrading type if it builds up its bed to a certain slope (B) Degrading type if it cuts its bed to a certain slope (C) Meandering type if it flows in sinuous curve (D) All of the above

MCQ 8 Pick up the correct statement from the following:

(A) Water table generally follows the ground surface above it with a few exceptions (B) Static level of water in an open well indicates the position of the water table (C) At water table, hydrostatic pressure is zero (D) All of the above

MCQ 9 A deficit of sediments in flowing water may cause a river

(A) Meandering type (B) Aggrading type (C) Degrading type (D) Sub-critical type