Environmental Engineering Sheet 20
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1) Question.
Which of the following unit works in anaerobic conditions?
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2) Question.
Generally the detention period for grit chambers is kept as
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3) Question.
The rate of filteration of pressure filters is
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4) Question.
Period of cleaning of slow sand filters is about
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5) Question.
The percentage of filtered water, which is used for backwashing in rapid sand filters, is about
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6) Question.
Air binding phenomena in rapid sand filters occur due to
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7) Question.
The effective size of sand particles used in slow sand filters is
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8) Question.
Which of the following causes a decrease in per capita consumption?
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9) Question.
The per capita consumption of a locality is affected by
i) climatic conditions
ii) quality of water
iii) distribution pressure
The correct answer is
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10) Question.
Assertion A: The consumption of water increases with increases in the distribution pressure.
Reason B : Hither distribution pressure causes more loss and waste of water.
Select your answer according to the coding system given below
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11) Question.
A separate system will be favourable when -
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12) Question.
A combined system will be favourable when -
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13) Question.
The water carriage sewage system removes -
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14) Question.
Which of the following statement is wrong? -
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15) Question.
The method in which different types of refuse are collected, carried and disposed off separately is called -
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16) Question.
The self cleaning velocity, recommended for Indian conditions, in order to prevent settling down of sewage at the bottom or on the sides of a large sewer is -
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17) Question.
A sewer which gets discharge from two or more main sewers is called -
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18) Question.
A sewer which receives discharge of a number of house sewers is called a -
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19) Question.
A pipe conveying sewage from the plumbing system of a singe building to a common sewer or to the point of immediate disposal is called -
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20) Question.
The main object of sewage disposal is -
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