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Waste Water Engineering
Waste Water Engineering Objective
Quiz 1
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Q.1
What is the EE/O for Xylene in kWh/US gal/order?
a) 2-5
b) 5-7
c) 7-9
d) 9-12
Q.2
Advanced oxidation processes are used to remove inorganic materials in water and wastewater.
a) True
b) False
Q.3
Organic materials in wastewater are removed by oxidation through reactions with _______
a) hydrogen
b) hydroxyl radicals
c) water
d) oxygen
Q.4
What is the process used in AOP?
a) Oxidation
b) Reduction
c) Substitution
d) Chlorination
Q.5
Advanced oxidation processes are cheap.
a) True
b) False
Q.6
The cost of AOP is high because of _________
a) High pumping cost
b) Continuous input of energy
c) Expensive chemical reagents
d) UV radiations
Q.7
What is the oxidative potential of hydroxyl radical?
a) 2.08
b) 2.18
c) 2.28
d) 1.78
Q.8
What is the EE/O for 1,4 dioxane in kWh/US gal/order?
a) 2-6
b) 30
c) 15
d) 15-20
Q.9
What is the EE/O for atrazine in kWh/US gal/order?
a) 2-6
b) 30
c) 20
d) 15-20
Q.10
What is the EE/O for benzene in kWh/US gal/order?
a) 2-5
b) 5-7
c) 7-9
d) 9-11
Q.11
What is the EE/O for DCA in kWh/US gal/order?
a) 5
b) 15
c) 20
d) 25
Q.12
What is the EE/O for chloroform in kWh/US gal/order?
a) 5-10
b) 15
c) 20-25
d) 25-30
Q.13
How is UV dosage expressed mathematically?
a) UV dosage = EE/O log(Ci)/(Cf)
b) UV dosage = EE/O /log(Ci)/(Cf)
c) UV dosage = log(Ci)/(Cf)
d) UV dosage = EE/O (Ci)/(Cf)
Q.14
How is the operating cost calculated for an advanced oxidation process system in $ per 1000US gallon?
a) Total operating cost = 1.45 x electrical cost + Peroxide cost
b) Total operating cost = 0.45 x electrical cost + Peroxide cost
c) Total operating cost = electrical cost + Peroxide cost
d) Total operating cost = 1.5 x electrical cost + Peroxide cost
Q.15
How is the UV power calculated?
a) UV power = [UV dosage x 60 x flow(US gallons)]/1000
b) UV power = [UV dosage x 600 x flow(US gallons)]/1000
c) UV power = [UV dosage x flow(US gallons)]/1000
d) UV power = [UV dosage x 16 x flow(US gallons)]/1000
Q.16
What is the EE/O for Vinyl chloride in kWh/US gal/order?
a) 1-2
b) 2-3
c) 3-5
d) 5-7
Q.17
What is the EE/O for TCA in kWh/US gal/order?
a) 15
b) 20
c) 10
d) 30
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