Q.1) The water utilizable by plants is available in the form of :
A) Gravity water
B) Hygroscopic water
C) Capillary water
D) Chemical water
Option (C)
Q.2) On rolling land, the method of applying water is :
A) Check flooding
B) Free flooding
C) Border flooding
D) Furrow flooding
Option (B)
Q.3) The field irrigation requirement is computed as :
A) Consumptive use + field application losses
B) Net irrigation requirement + field application losses
C) Net irrigation requirement + conveyance losses
D) Consumptive use + conveyance losses
Option (B)
Q.4) Method of applying water directly to the root zone of the plant is called –
A) Check flooding
B) Drip flooding
C) Furrow flooding
D) Sprinkler flooding
Option (B)
Q.5) Which of the following process includes spreading of an external material on the soils to increase infiltration and reduce evaporation?
A) Mulching
B) Paleo irrigation
C) Ploughing
D) Tillage
Option (A)
Q.6) As one moves from head of the canal to the field, the duty of water :
A) Decreases
B) Either increases or decreases
C) Increases
D) Remains constant
Option (C)
Q.7) Which one of the following is NOT the cause of water logging?
A) Excess tapping of the ground water
B) Frequent irrigation
C) High water table
D) Seepage from unlined canals
Option (A)
Q.8) With an increase in the supply of irrigation water, yields of the crops :
A) Decrease continuously
B) Increase continuously
C) Increase up to a certain limit and then becomes constant
D) Increase up to a certain limit and then decreases
Option (D)
Q.9) Which one is the best method of the reclamation of the acidic soil?
A) Leaching
B) Provision of good drainage
C) Use gypsum as soil amendment
D) Use limestone as soil amendment
Option (D)
Q.10) Watering done prior to the sawing of the crops is called –
A) Kor watering
B) Duty
C) Delta
D) Paleo irrigation
Option (D)
Q.11) The upper surface of weir over which water flows, is known as :
A) Crest
B) Sill
C) Vein
D) Contracta
Option (A)
Q.12) The best alignment for a canal is when it is aligned along :
A) Valley line
B) Stream line
C) Contour line
D) Ridge line
Option (D)
Q.13) For unlined canals, the freeboard is measured from the –
A) Full supply level to the top of the bank
B) Top of the bank to bed of the canal
C) Full supply level to top of the dowel
D) None of the above
Option (A)
Q.14) The most desirable alignment of an irrigation canal is along :
A) The contour line
B) The ridge line
C) Normal to contour line
D) The valley line
Option (B)
Q.15) Canal normally used for diversion of flood water of a river is –
A) Feeder canal
B) Inundation canal
C) Ridge canal
D) Contour canal
Option (B)
Q.16) Rainfall hyetograph shows the variation of :
A) Cumulative rainfall with time
B) Rainfall intensity with time
C) Rainfall depth over an area
D) Rainfall intensity with the cumulative rainfall
Option (B)
Q.17) The area characteristics of a rain storm are represented by a –
A) DAD curve
B) Hyetograph
C) Mass curve
D) Double mass curve
Option (A)
Q.18) For construction of cement concrete dams, the maximum permissible size of the aggregates is –
A) 40 mm
B) 50 mm
C) 60 mm
D) 70 mm
Option (A)
Q.19) Berms are provided in canals if these are :
A) Fully in excavation
B) Partly in excavation and partly in embankment
C) Fully in embankment
D) All of the above
Option (A)
Q.20) Available moisture is the difference in water content of soil between field capacity and……………?
A) Gravitational water
B) Permanent wilting point
C) Saturation capacity
D) Ultimate wilting point
Option (B)
