- Oxidation
- Reduction
- Dehydration
- Fermentation
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Steel will respond to hardening by heat treatment processes, only when the minimum carbon content in it is __________ percent.?
Answer: Option 2 Let'
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Which one of the following weeds is effective in controlling water pollution caused by industrial effluents?
Answer: Option 1 Parthenium is effective in controlling water pollution caused by industrial effluents.
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The sewage treatment units in which anaerobic decomposition of organic matter is used, are called?
Answer: Option 2 Let'
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The sewer which transports the sewage to the point of treatment, is called?
Answer: Option 2 Let'
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Which of the following pumps in used to pump sewage solids with liquid sewage without clogging the pump is?
Answer: Option 1 Let'
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Which of the following heat treatment processes is usually applied to castings ?
Answer: Option 4 Let'
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Which of the following heat treatment processes is used for softening the hardened material?
Answer: Option 2 Let'
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The type of bacteria which is active in trickling filter during biological treatment of sewage is the __________ bacteria.?
Answer: Option 3 Let'
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Which of the following is not one of the three processes involved in the transfer of water between the atmosphere and the surface of the Earth?
Answer: Option 1 Insolation is not one of the three processes involved in the transfer of water between the atmosphere and the surface of the Earth. Insolation is the amount...
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Statement : The police department has come under a cloud with recent revelations that at least two senior police officials are suspected to have been involved in the illegal sale of a large quantity of weapons from the state police armoury. Courses of Action : I. A thorough investigation should be ordered by the State Government to bring out all those who are involved into the illegal sale of arms. II. State police armoury should be kept under Central Government's control.?
Answer: Option 1 Clearly, the situation demands finding out the real culprits first. So, only I follow.
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