This set of Environmental Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Various Unit Operations”. 1. In which unit operation, gases are released or absorbed in the water? a) Gas transfer b) Ion transfer c) Solute stabilization d) Solids Transfer 2. How many types of aerators are commonly used in the treatment of water? … Read more
This set of Environmental Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Biological Characteristic of Water”. 1. Which type of bacteria has a rod shaped structure? a) Bacilli b) Cocci c) Spirilla d) Vibrio 2. ________ represents the bacterial density that is most likely to be present in water. a) BOD b) COD c) … Read more
This set of Basic Environmental Engineering Questions and Answers focuses on “Chemical Characteristic of Water”. 1. Chlorides are estimated by titration with a standard silver nitrate solution by using _______ as an indicator. a) Potassium manganate b) Potassium chloride c) Potassium chromate d) Potassium dichromate 2. Carbonate hardness can be removed by adding lime to … Read more
This set of Environmental Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Physical characteristic of Water”. 1. The size of suspended solids lies in the range of ________ a) 10-3 – 10-6 mm b) 103 – 106 mm c) 10-1 – 10-3 mm d) 101 – 103 mm 2. Suspended solids are measured by … Read more
This set of Environmental Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Population Forecasting”. 1. In which method of population forecasting, increase in population from decade to decade is assumed constant? a) Arithmetical increase method b) Geometrical increase method c) Incremental increase method d) Decreased rate of growth method 2. What is the expression … Read more
This set of Environmental Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Water Demand”. 1. The average quantity of water (in lpcd) required for domestic purposes according to IS code is ________ a) 100 b) 120 c) 70 d) 135 2. The average consumption of water required in factories in lpcd is ___________ a) … Read more
