Time Left - 08:00 mins
Environmental Engineering Quiz 1
Attempt now to get your rank among 1114 students!
Question 1
Two waste water streams A and B merge into each other producing a stream C with 5 times discharge than A. If the ultimate BOD value of stream A is 131.25 while B is fresh water. Find out the 5 day BOD of stream C (in mg/L) Use k = 0.23 day-1
Question 2
A machine is put near a classroom which produces noise of 100 dB. If the machine is put twice the distance at present, then the percentage reduction in noise in the classroom is
Question 3
Which of the following is correct in respect of ozone layer:
Question 4
A 50 mL sample of treated waste water requires 200 mL of odour-free distilled water to reduce the odour to a level that is just perceptible. The Threshold Odour Number (TON) for the waste-water sample will be _____.
Question 5
The F/M ratio is controlled in the activated sludge process by adjusting the
Question 6
The total hardness value obtained from the complete analysis of a water sample was found to be 120mg/l. if the value of carbonate hardness is 50 mg/l. the non-carbonate hardness and alkalinity are, respectively
Question 7
The slope of a 1.0 m diameter concrete sewer laid at a slope of 1 in 1000, develops a velocity of 1 m/s, when flowing full. When it is flowing half-full, the velocity of flow through the sewer will be
Question 8
The census record of a particular town is shown in table. The population (in thousands) for the year 2020 by decreasing growth rate method will be
Question 9
A city has a population of 10, 00,000. Average water consumption of the people is 270 lpcd, then the maximum hourly demand in MLD is
Question 10
If the slope of sewer A is 1/100 and that of sewer B is 1/400, the velocity of flow in the two sewers will have a ratio of (size of both the sewers being same)
- 1114 attempts
- 3 upvotes
- 5 comments
Tags :
ESE & GATE CEGeneralAug 11ESE & GATE CE
