1. In the preliminary treatment of wastewater, skimming tanks are often included in the treatment scheme. Various features of skimming tanks are that these : 1. can remove general floating matter. 2. can remove oily and greasy matter. 3. have detention time of 30 min. 4. employ compressed air blown through diffusers. Which of these statements are correct ?





Ask Your Doubts Here

Type in
(Press Ctrl+g to toggle between English and the chosen language)

Comments

Show Similar Question And Answers
QA->Two statements are given followed by two conclusions I and II. You have to consider the two statements to be true even if they seem to be at variance from commonly known facts. You have to decide which one of the given conclusions is definitely drawn from the given statements. Statement : All virtuous persons are happy. No unhappy person is virtuous. Conclusions : I. Happiness is related to virtue II. Unhappy person is not virtuous.....
QA->‘I have been touring different parts of the world. During these travels, I have had the good fortune to come into contact with several saints and maharshis. But I have frankly to admit that I have never come across one who is spiritually greater than Swami Sree Narayana Guru of Kerala” Whose words are these?....
QA->A pendulum clock is set to give correct time at the sea level. This clock is moved to a hill station at an altitude of 2500m above the sea level. In order to keep correct time on the hill station, the length of the pendulum?....
QA->P can do a work in the same time in which Q and R together can do it. If P and Q work together, the work can be completed in 10 days. R alone needs 50 days to complete the same work. then Q alone can do it in....
QA->On a stationary sail boat, air is blown from a fan attached to the boat. The boat?....
MCQ->In the preliminary treatment of wastewater, skimming tanks are often included in the treatment scheme. Various features of skimming tanks are that these : 1. can remove general floating matter. 2. can remove oily and greasy matter. 3. have detention time of 30 min. 4. employ compressed air blown through diffusers. Which of these statements are correct ?....
MCQ->Consider the following statements in regard to aerobic and anaerobic treatment processes : 1. Biomass production in the aerobic treatment process is more as compared to the anaerobic treatment process. 2. Start-up period is more in the aerobic treatment process as compared to the anaerobic treatment process. 3. Energy consumption and production is more in the aerobic treatment process as compared to the anaerobic treatment process. Which of the statements given above is/are correct ?....
MCQ->Which of the following statements is/are true in relation to the term 'detention period' in a settling tank? 1. It may be determined by introducing a dye in the inlet and timing its appearance at the outlet. 2. Greater the detention period, greater the efficiency of removal of settleable matter. 3. It is the time taken for any unit of water to pass through the setting basin. 4. It is usually more than the flowthrough period. Select the correct answer using the codes given below :....
MCQ->Originating in the 1920s, the Pyramid scheme is one of the oldest con games going. Honest people are often pulled in, thinking the scheme is a legitimate investment enterprise. The first customer to "fall for" the Pyramid scheme will actually make big money and will therefore persuade friends and relatives to join also. The chain then continues with the con artist who originated the scheme pocketing, rather than investing, the money. Finally, the pyramid collapses, but by that time, the scam artist will usually have moved out of town, leaving no forwarding address. This paragraph best supports the statement that....
MCQ->Consider the following statements relating to the stability of floating as well as submerged bodies : 1. A submerged body is stable when the centre of gravity is below the centre of buoyancy. 2. A floating body is stable when the centre of gravity is above the centre of buoyancy. 3. A floating body is stable when the centre of gravity is below the metacentre. 4. A submerged body is in stable equilibrium when the centre of gravity coincides with the centre of buoyancy. Of these statements :....
Terms And Service:We do not guarantee the accuracy of available data ..We Provide Information On Public Data.. Please consult an expert before using this data for commercial or personal use | Powered By:Omega Web Solutions
© 2002-2017 Omega Education PVT LTD...Privacy | Terms And Conditions
Question ANSWER With Solution