Environmental Engineering Mcqs

Q.  The ratio of 5 day BOD to ultimate BOD is about_______________?

a. 1/3
b. 2/3
c. 3/4
d. 1.0


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  The layout of distribution system in which water flows towards the outer periphery is_________________?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  As compared to cast iron pipes, steel pipes are______________?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Which of the following compounds is widely used for algae control ?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  In lime-soda process________________?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  As compared to higher pH values, the contact period required for efficient chlorination at lower pH values is___________________?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Which of the following chemical compounds can be used for dechlorination of water ?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  The treatment of water with bleaching powder is known as________________?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  The process in which the chlorination is done beyond the break point is known as_________________?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  The disinfection efficiency of chlorine increases by_______________? 1) decreasing the time of contact 2) decreasing the temperature of water 3) increasing the temperature of water The correct answer is ?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Double filtration is used_______________?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Disinfection of water results in______________?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Period of cleaning of slow sand filters is about________________?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Cleaning is done by________________? 1) scraping and removal in filters slow sand 2) back washing in slow sand filters 3) scraping and removal in filters rapid sand 4) back washing in rapid sand filters The correct answer is
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Air binding phenomena in rapid sand filters occur due to_________________?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  As compared to rapid sand filters, slow sand filters give______________? 1) slower filtration rate 2) higher filtration rate 3) lesser efficiency in removal of bacteria 4) higher efficiency in removal of bacteria The correct answer is?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  The rate of filtration in slow sand filters in million litres per day per hectare is about_____________?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  The chemical most commonly used to increase speed of sedimentation of sewage is_______________?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  The detention period in coagulation tanks is usually kept as_______________?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  The amount of coagulant needed for coagulation of water increases with_______________? 1) increase in turbidity of water 2) decrease in turbidity of water 3) increase in temperature of water 4) decrease in temperature of water The correct answer is?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  For a given discharge, the efficiency of sedimentation tank can be increased by______________?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts