| 1. | The horizontal tunnels constructed at shallow depths along the banks of a river to intern ground water table are called ? | |
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canals
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infiltration galleries
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springs
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lakes
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Report Question| 2. | Which of the following formula is used for computing the quantity of water for fire demand ? | |
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Freeman's formula
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Kuichling formula
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Buston's formula
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all of these
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| 3. | Which of the following statement is correct ? | |
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The sub-surface sources are not affected by draught
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Infiltration galleries are most suitable for increasing the surface source supply, in dry season
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The rate at which water percolates into well under safe maximum critical depression head is called yield of well
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all of the above
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| 4. | The domestic use of water amounts to ............ of the total water requirements per capita per ? | |
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20%
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30%
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40%
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50%
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| 5. | The vertical wells provided along the banks of a river to draw ground water in dry season are called ? | |
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open wells
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tube wells
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artesian wells
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infiltration wells
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| 6. | The presence of hydrogen sulphide in water causes ? | |
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softening
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alkalinity
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acidity
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bad taste
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| 7. | A pipe sunk into the ground to tap the underground water is called ? | |
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open well
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tube well
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artesian well
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infiltration well
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| 8. | The presence of calcium and magnesium chloride in water causes ? | |
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softening
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bad taste
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hardness
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turbidity
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| 9. | The earth's water circulatory system is known as ? | |
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water cycle
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hydrological cycle
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precipitation cycle
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all of these
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| 10. | The growth of population may be conveniently represented by ? | |
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semi-logarthmic curve
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logistic curve
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straight line curve
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all of these
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