Q. ______ represents the number of dilutions required to reduce odor.

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Q. The odor quality of Amines is __________

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Q. The odor quality of compound is ammoniacal. Identify the type of compound from the following options.

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Q. The wastewater from the kitchen is an example of __________

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Q. The type of wastewater from the flushing operation of toilet is __________

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Q. The temperature of sewage increases. What will be the effect on the dissolved oxygen in sewage?

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Q. What is the minimum quantity of dissolved oxygen that should be present in the treated sewage?

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Q. The presence of which of the following in sewage indicates nitrogen content before decomposition of sewage?

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Q. The presence of free ammonia in sewage represents ____________

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Q. Which chemical is used for the titration of waste water for finding its chloride content?

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Q. The type of solids which floats in sewage is __________

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Q. The presence of which of the following indicates old pollution?

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Q. ________ is used to find the D.O content of sewage.

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Q. The permissible dose of chloride in domestic sewage is __________

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Q. Imhoff cone is used to measure the _______

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Q. The decomposition of sewage takes place, causing a pungent smell. Which of the following causes the pungent smell?

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Q. Which of the following disease is caused due to lack of nitrates?

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Q. The maximum quantity of dissolved oxygen present in wastewater is called __________

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Q. Identify the odd one of the following.

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Q. The fresh sewage is acidic in nature.

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