Environmental Engineering

This is an MCQ-based quiz on Environmental Engineering.

This includes air pollution control, industrial hygiene, radiation protection, hazardous waste management, toxic materials control, recycling, water supply, wastewater management, stormwater management, solid waste disposal, public health, and land management.

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Which of the following chemical compounds can be used for de-chlorination of water?

Carbon dioxide Bleaching powder Sulphur dioxide Chloramines

The type of valve which is provided to control the flow of water in the distribution system at street corners and where the pipe lines intersect is

Check valve Sluice valve Safety valve Scour valve

The suitable method for disinfection of swimming pool water is

Ultra violet rays treatment Lime treatment By using potassium permanganate Chlorination

The detention period and overflow rate respectively for plain sedimentation as compared to sedimentation with coagulation are generally

Less and more Less and less More and less More and more

Disinfection efficiency is

Reduced at higher pH value of water Unaffected by pH value of water Increased at higher pH value of water Highest at pH value equal to 7

If Biochemical oxygen demand (BOD) of a town is 20000 kg/day and BOD per capita per day is 0.05 kg, then population equivalent of town is

1000 4000 1,00,000 4,00,000

The specific gravity of sewage is

Much greater than 1 Slightly less than 1 Equal to 1 Slightly greater than 1

The effective size of sand particles used in slow sand filters is

0.25 to 0.35 mm 0.35 to 0.60 mm 0.60 to 1.00 mm 1.00 to 1.80 mm

Chlorine demand of water is equal to

Applied chlorine Residual chlorine Sum of applied and residual chlorine Difference of applied and residual chlorine

Corrosion in concrete sewers is caused by

Septic conditions Dissolved oxygen Chlorine Nitrogen

The living environment, the biosphere consists of __________ components.

2 4 1 3

The presence of gas in water is indicated by:

Fizzing sound Foam Bubbles Colour change

To test turbidity of polluted water in the field, _________ is used.

Baylis Turbidimeter Jackson Turbidimeter Turbidity tube Turbidity rod

Refuse may be of _________ types.

2 3 4 5

In the method of trenching, the size of the trench may be:

12 x 5 x 2m 15 x 5 x 3m 12 x 3 x 2m 15 x 5 x 5m

Failures within hydrosphere in oxygen cycle can result in the development of:

Hyperoxic zones Hypoxic zones Hydrolic zones Hydroxic zones

What are the main constituents of the environmental cycles?

Water cycle and food cycle Water cycle and nutrient cycle Nutrient cycle Water cycle and air cycle

_________ is a raw material sent to and processed in a waste recycling plant.

Recyclant Nodules Particulars Recyclate

Pollution cases can be classified into _________ types.

4 2 5 6

_________ is the simplest equipment used for collection of solid particulates.

Inertial separators Filters Settling chamber Cyclones
Quiz/Test Summary
Title: Environmental Engineering
Questions: 20
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