Permissible velocity of water flowing through concrete lined tunnel is usually __________________?
A. 3 – 4m/sec B. 4 – 5m/sec C. 5 – 6m/sec D. 6 – 7m/sec
Agriculture MCQs
The depth of flow at which the energy is maximum is called ____________________?
A. Super critical depth B. Sub-critical depth C. Critical depth D. All are correct
The depth of flow at which the energy is maximum is called ____________________?
A. Super critical depth B. Sub-critical depth C. Critical depth D. All are correct
Water application efficiency increases if the plot to be irrigated is__________________?
A. Circular B. Square C. Rectangle D. All are correct
Water available above the top of root zone of plants is about 15% of soil moisture contents, is mostly not available to plants celled_________________?
A. Capillary water B. Irrigation water C. Effective water D. Hygroscopic water
Wilting point is that limit after that the crop starts feeding up and no water is available for plant, this point occurs after _________________?
A. 30% water available B. 25% water available C. 20% water available D. All are correct
Estimated quantity of global water is __________which covers about 70% of earth?
A. 1.30x109km3 B. 1.32x109km3 C. 1.33x109km3 D. 1.35x109km3
Estimated quantity of global water is __________which covers about 70% of earth?
A. 1.30x109km3 B. 1.32x109km3 C. 1.33x109km3 D. 1.35x109km3
_________% of total global water is fresh and its major portion is obtained from Rains ?
A. 2% B. 2.5% C. 3% D. 3.2%
_________% of total global water is fresh and its major portion is obtained from Rains ?
A. 2% B. 2.5% C. 3% D. 3.2%