A. 2%
B. 2.5%
C. 3%
D. 3.2%
Related Mcqs:
- Art of mixing saline water with fresh water in accordance with some ratio for irrigation purpose is called _________________?
A. Amalgamation
B. Mixing of water
C. Desalinization
D. All are correct - __________% of total global water is saline and available in oceans ?
A. 95%
B. 96%
C. 97%
D. 97.5% - The field capacity is the water retained by a saturated soil after free drainage of surplus water to the ground water table but the water retained by a saturated soil after being centrifuged by a centrifugal force of 1000 times that of gravity is called________________?
A. Soil moisture
B. Equivalent moisture
C. Field moisture
D. Available moisture - A water rise takes place on down stream of sloping glacis, when a stream of water moving with high velocity and low depth strikes another stream of flow moving with low velocity and high depth, such breakage in water surface is called______________?
A. Water wave
B. Water tide
C. Hydraulic jump
D. Afflux - A water pool is designed on the down stream of the hydraulic structure to dissipate the energy of falling water by providing a water cushion called ______________________?
A. Water pool
B. Cistern
C. Down stream pond
D. Water cushion - The water evaporates from paddy surfaces to the atmosphere in the form of water vapours, these water vapours get collected in the atmosphere and behave & like_________________?
A. Water
B. Snow
C. Ice particles
D. Gas - Water logging caused by ____________ water, which during excessive irrigation percolates down and join under ground water table?
A. Capillary
B. Hygroscopic
C. Gravity
D. Free - The delta the total depth of water consumed by crop up to its maturity, the delta of cotton is ____________________?
A. 100 cm
B. 80 cm
C. 50 cm
D. 40 cm - The delta the total water depth required by a crop up to its maturity the delta of wheat is _____________________?
A. 60cm
B. 50cm
C. 40 cm
D. 30cm - Estimated quantity of global water is __________which covers about 70% of earth?
A. 1.30x109km3
B. 1.32x109km3
C. 1.33x109km3
D. 1.35x109km3
