Environmental Engineering MCQ Questions & Answers

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Each section contains 100 MCQs on Environmental Engineering .

Standard EDTA (ethylene diamine tetra acetic acid) solution is used to determine the

A) Hardness in water B) Turbidity in water C) Dissolved oxygen in water D) Residual chlorine in water

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

The hourly variation factor is usually taken as

A) 1.5 B) 1.8 C) 2.0 D) 2.7

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Disinfection of water results in

A) Removal of turbidity B) Removal of hardness C) Killing of disease bacteria D) Complete sterilisation

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

If the total hardness of water is greater than its total alkalinity, the carbonate hardness will be equal to

A) Total alkalinity B) Total hardness C) Total hardness total alkalinity D) Non carbonate hardness

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Laying of sewers is usually done with the help of

A) A Theodolite B) A compass C) Sight rails and boning rods D) A plane table

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

The correct relation between theoretical oxygen demand (TOD), Biochemical oxygen demand (BOD) and Chemical oxygen demand (COD) is given by

A) TOD > BOD > COD B) TOD > COD > BOD C) BOD > COD > TOD D) COD > BOD > TOD

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

As compared to shallow wells, deep wells have

A) More depth B) Less depth C) More discharge D) Less discharge

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

As compared to cast iron pipes, steel pipes are

A) Heavier B) Stronger C) Costlier D) Less susceptible to corrosion

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

In water treatment, rapid gravity filters are adopted to remove

A) Dissolved organic substances B) Dissolved solids and dissolved gases C) Floating solids and dissolved inorganic solids D) Bacteria and colloidal solids

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

In facultative stabilization pond, the sewage is treated by

A) Aerobic bacteria only B) Algae only C) Dual action of aerobic bacteria and anaerobic bacteria D) Sedimentation

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

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Environmental Engineering MCQ Questions & Answers | Civil Engineering