Q. Which of the following is not a cause of corrosion?

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Q. A pipe sunk into the ground to draw the underground water is known as ___________

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Q. Which of the following well is also known as flowing well?

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Q. The water bearing strata is known as _________

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Q. The difference in levels of water in a well before and after pumping is called ________

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Q. A cylindrical section having no joint is known as _____________

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Q. Strength of joint = efficiency × __________

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Q. The presence of calcium and magnesium chloride in water causes ___________

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Q. The calcium carbonate in water is _____________

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Q. Red colour in water denotes?

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Q. The water of the river has an important property known as __________

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Q. The type of joint provided to release thermal stresses is called _______

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Q. In __________ pipes, the discharging capacity reduces as the life period increases.

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Q. Isolated __________ decrease stability in the ecosystem.

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Q. The presence of hydrogen sulphide in water causes ________

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Q. The turbidity in water is expressed in terms of ________

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Q. NTU is measurement unit of _______

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Q. Taste and odour are expressed in terms of ______

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Q. The water is considered soft when the ppm is between _______

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Q. Expand MPN?

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