Envt- Full Syllabus-2-quiz for ESE & GATE CE Exams

Question 1

Match List-I (Equipment) with List-II (Parameter) and select the correct answer using the codes given below the lists:
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Question 2

Consider the following statements:
The time of BOD assimilation in a stream can be affected by
1). Ratio of stream depth to flow width.
2). Stream BOD value.
3). BOD rate constant.
Which of these statements are correct?

Question 3

Directions: Each of the next items consists of two statements, one labeled as the ‘Statements (I)’ and the other as ‘Statement (II)’. You are to examine these two statements carefully and select the answer to these items using the codes given below:

Statements (I): The BOD test is conducted for 5 days at 20^oC
Statements (II): The Amount of oxygen utilized by microorganisms anaerobically is called BOD

Question 4

Assertion (A): Composting is the most commonly used process for the decomposition of the organic components of municipal solid wastes.
Reason (R): Bangalore method is a common anaerobic method used for biological conversion of organic components of municipal solid wastes.

Question 5

Assertion (A):In a strainer type tube well, strainer pipes are surrounded by wire mesh.
Reason (R): This prevents the fine particles from entering the well pipe.

Question 6

A municipal sewage has BOD5 of 200 mg/L. It is proposed to treat it and dispose off into a marine environment. For what minimum efficiency should the sewage treatment plant be designed?

Question 7

Secondary clarifier of an activated sludge process must be designed for effluent clarification and solids thickening, both of which relate directly to the

Question 8

Which of the following are the advantages of cast iron pipe for its use in water supply?
1). Resistant to corrosion a reasonable extent
2). Very easy to join the pipes
3). Easy to transport
4). Longer life
Selection the correct answer using the codes given below:

Question 9

Consider the following statements:
In a water supply system,
1). Drain valves are provided at elevated or higher, points to remove accumulated air.
2). reflux valve allows flow in one direction only.
3). Drain valve are provided at low points to remove silt and other deposits.
Which of these statements is/are correct?

Question 10

Statement (I):Rainwater is collected and harvested using storage structures like underground tanks for future use and also for recharging the aquifer.
Statement (II): Rainwater harvesting pits allow the rainwater to percolate and recharge the aquifer.