1.
Which are following Global Environmental Issues?
a)
Ozone depletion
b)
Global warming
c)
Solid and hazardous wastes
d)
Fresh water quantity and quality
e)
All
of above
2.
Land degradation is now-a-days a _______________
a)
Global Issue
b)
Country Issue
c)
Global Environmental
Issue
d)
None
3.
Which one is wrong statement about environmental
problem issues?
a)
Degradation of marine environments
b)
Deforestation
c)
Water treatment facility
d)
Endangerment of biological diversity
e)
All
of above are correct
4.
Environmental engineering deals
with_____________
a)
Air Pollution
b)
Noise pollution
c)
Solid waste engineering & management
d)
Hazardous waste management
e)
All
of above
5.
‘Water treatment and supply systems’ are to be
considered specifically in ______________
a)
Civil engineering
b)
Environmental
Engineering
c)
Hydrology
d)
Both in (b) and (c)
6.
Air pollution can be categorized mainly
into______________ parts
a)
2
b)
3
c)
4
d)
None
7.
Factors of air pollution ____________
a)
Traffic
b)
Industries
c)
Forest fire
d)
volcanic irruption
e)
All of
above
8. ‘Query
blasting’ causes the ___________
a)
Water pollution
b)
Air
pollution
c)
Dust pollution
d)
None
9.
Sources of Noise
Pollution are ____________
a)
Traffic
b)
Industries
c)
Construction works
d)
Workshops
e)
All of
above
10.
Solid waste engineering includes _____________
a)
Collection of waste
b)
Storage of waste
c)
Disposal of waste
d)
All
of above
11.
Solids become hazardous when following
activities occur _____________
a)
Open burning
b)
Open dumping
c)
Unhygienic disposal
d)
Dispose off in open drains
e)
All of
above
12. No proper
guide lines are available for ___________ management
a)
Hazardous
Waste
b)
Solid waste
c)
Water waste
d)
None
13. Which of the statement is correct about Hazardous waste management?
a)
It’s a very sensitive issue
b)
Very complex and dangerous to handle
c)
Sources are still not define
d)
All of
above
e)
Only (a) and (b)
14.
_____________ of
the waste generation are the two factors decide how much environmental damage
is done per person.
a)
Availability
b)
Consumption
c)
Dispose
d)
Both (a) & (b)
e) Both (b) & (c)
15.
‘Estimating
population Growth’ means the __________________
a) Calculations of
world resource consumption and pollution loads
b)
Calculations of
persons per house
c)
Calculations of
world resource consumption
d)
All of above
16.
Surface Water Treatment involves
different processes like ______________
a) Chemical
Mixing (Rapid Mixing)
b) Flocculation
c) Sedimentation
d) Rapid
Sand Filter
e)
All
of above
17.
Groundwater Treatment involves
following steps ________________
a) Aeration
b) Disinfection
c) Fluoridation
d) Pumped
to community
e)
All
of above
18.
_____________ is the chemical
alteration of the colloidal particles to make them stick together
a) Disinfection
b) Aeration
c) Fluoridation
d)
Coagulation
19. Particles
which absorbs water are known as _____________
a)
Hydrophilic
b)
Hydrophobic
c)
Hydrates
d)
None
20. Usually
Rapid mixing takes time _____________
a)
10 – 20 min
b)
20 – 30 min
c)
20 – 60
min
d)
30 – 40 min
21.
Mark the Coagulants
a) Aluminum
sulfate (alum)
b) Ferrous
sulfate (ferric)
c)
Ferric chloride
d) All of above
22. Flocs are
separated from water in ___________ process
a)
Settling
Tank
b)
Filtration
c)
Disinfection
d)
None
23. All
sedimentation tanks are modeled as ___________ reactors
a)
Plug
flow
b)
Chlorine
c)
Gravity Flow
d)
Both (b) & (c)
24. Design of
settling tank is determined by ____________
a)
Volume of water
b)
Size of particle
to be removed
c)
Available space
d)
All of above
25. Rate of
slow sand filtration __________
a)
0.1-0.2
m/h
b)
0.2-0.3 m/h
c)
1-2 m/h
d)
2-3 m/h
26. Rate of
rapid sand filtration __________
a)
4-20 m/h
b)
5-20 m/h
c)
5-15 m/h
d)
None
27. Disinfection
is applied when the waste water is left with about ______ of bacteria and
viruses
a)
88-90%
b)
78-80%
c)
18-20%
d)
8-10%
28. A
disinfectant is used to _______________
a)
Kill microbes fast and efficiently
b)
Not kill humans or other animals
c)
Last long enough to prevent
re-growth in distributions systems
d) All of above
29. Commonly
used disinfectants are ________________:
a)
Chlorine
b)
hlorine Trioxide
c)
Gama Radiations
d)
All of above
30.
____________ refers to water
treatment processes that combine small particles into larger particles, which
settle out of the water as sediment.
a)
Flocculation
b)
Chlorination
c)
Disinfection
d)
Filtration
31.
Water Treatment methods are ____________
a)
Flocculation/Sedimentation
b)
Ion
Exchange
c)
Disinfection
d) All
of above
32. GAC or PAC are used to remove contaminants, and
works on the principle of __________
a)
Absorption
b) Adsorption
c)
Flocculation
d)
None
33.
Ion exchange can be used to treat ________________
a) Hard water
b) Soft
water
c) Turbid
water
d) Sea
water
34.
Long-term exposure to ___________ via
drinking-water causes cancer of the skin, lungs, urinary bladder, and kidney,
as well as other skin changes such as pigmentation changes and thickening.
a) Arsenic
b) Fluoride
c) Magnesium
d) Potassium
35. Objectives of water supply systems are _______________
a)
To supply safe and wholesome water to
consumers
b)
To supply water in adequate quantity
c)
To provide economical water supply system
d)
All
of above
36. The
______________ enables the determination of sizes and capacities of all the
constituents of the water supply system.
a)
Estimate
b)
Surveyor
c)
Both (a) and (b)
d)
None
37. In
practice, a period varying from _____________
years is considered sufficient for design purpose.
a)
10-20 years
b)
15-25 years
c)
20-30
years
d)
30-40 years
38. For the
purpose of estimating total requirement of water of a community, it is usual to
calculate the consumption in ______________
a)
Liters per capita per year
b)
liters per
capita per day
c)
Liters per capita per month
d)
Gallons per capita per day
39.
Factors affecting
Per Capita Consumption are ______________
a)
Climate
b)
Industries and commerce
c)
Quality of water
d)
Number of habitants
e)
All of
above
40. For the
population of 20,000 – 50,000 in a community without sewerage has the lpcd is
________
a)
60
b)
80
c)
100
d)
160
41. Estimated demand Per Capita per Day out of 135 lit.
for drinking & cooking is _________
a)
3.5 Litr
b) 4.5
Litr
c)
5.0 Litr
d)
49.5
Litr
42.
As compared to the total
consumption, Fire demand is seldom more than _____________.
a) 5 - 10 per cent
b) 5
- 15 per cent
c) 10
- 20 per cent
d) None
43.
The estimate of fire demand can be
made with the help of the _____________
a) Empirical formulae
b) Statistical
formulae
c) Manning’s
Formula
d) None
44.
National
Board of Fire Underwriters Formula:
a)
Q
= 4673 (P) 0.5 [1 - 0.01(P)0.5]
b)
Q =
4637 (P) 0.5
[1 - 0.01(P)0.5]
c)
Q =
6437 (P) 0.5
[1 - 0.01(P)0.5]
d) Q
= 4637 (P) 0.7
[1 - 0.01(P)0.5]
45.
Freeman Formula:
a)
Q
= 1136.5 (P/5 +10)
b) Q
= 1136.5 (P/10 +10)
c) Q
= 1136.5 (P/15 +10)
d) Q
= 1146.5 (P/5 +10)
46.
Recommend that the fire reserve
should be provided at the rate of ________ lpm for every 50,000 population.
a) 1800
b) 1900
c) 1650
d) 1725
47.
This relation Pn = P (1
+ i/100) n gives the population at end of nth year according to __________
a) Arithmetical
progression method
b)
Geometrical
progression method
c) Incremental
increase method
d) None
48. __________
of sickness in the world is caused by inadequate water supply or sanitation
a)
80%
b)
85%
c) 90%
d) None
49.
____________ has the following
properties; Constant composition, High mineral content, Low color & Low/no
D.O.
a) Ground Water
b) Surface
water
c) River
water
d) Rain
water
50.
In Surface Water
Treatment primary objectives are to ____________
a)
Remove suspended material (turbidity) and
color
b)
Eliminate pathogenic organisms
c)
Remove hardness and other minerals
d)
Eliminate pathogenic organisms
e)
Both (a)
and (b)
51.
In Ground Water
Treatment primary objectives are to ____________
a)
Remove suspended material (turbidity) and
color
b)
Remove hardness and other minerals
c)
Eliminate pathogenic organisms
d)
Both (a) and (b)
e)
Both (b)
and (c)
52. Al2(SO4)3.14H2O
is one of the ____________
a)
Coagulants
b)
Flocculent
c)
Hydrant
d)
None
53.
Stoke’s Law has
____________ in the denominator
a)
Dynamic velocity
b)
Dynamic viscosity
c)
Settling velocity
d)
Density
54. At bottom
of tank ______________ occurs
a)
Rapid Settling
b)
Compression
settling
c)
Slow settling
d)
both (a) & (c)
55. The final
step in removing particles is ____________
a)
Settling
b)
Filtration
c)
Disinfection
d)
Coagulation formation
56. In Dual
media filtration, there will be combination of __________
a)
Aggregate & Coal
b)
Coal &
sand
c)
Salt & sand
d)
None
57. ‘Anthracite
coal’ is used in the ____________ process
a)
Settling
b)
Filtration
c)
Disinfection
d)
Both (a) and (b)
58.
Face velocity for
the Slow sand filter is _____________
a)
2.9 – 7.6
m3/day·m2
b)
2.0 – 7.0 m3/day·m2
c)
2.1 – 7.6 m3/day·m2
d)
2.9 – 7.4 m3/day·m2
59. Back wash
water time for Rapid Sand filter is __________
a)
5 – 10 min
b)
10 – 15 min
c)
15 – 20 min
d)
20 – 25 min
60. Back wash
water is ____________
a)
Either treated,
b)
Release to river without treatment
c)
Disposed of properly
d)
Both (a)
& (c)
61.
____________ is any process to destroy or
prevent the growth of microbes
a)
Filtration
b)
Disinfection
c)
Chlorination
d)
None
62.
Inactivation processes include denaturizing
of:
a)
Proteins
b)
Nucleic acids
c)
Lipids
d)
All of
above
63.
Properties of an Ideal Disinfectant are
____________
a)
Against all microbes
b)
Produces rapid inactivation
c)
Effective in the presence of organic matter
d)
Nontoxic
and All of above
64.
Free Chlorine is used as _____________ in Water and Wastewater Treatment
a)
Disinfectant
b)
Retarder
c)
Catalyst
d)
None
65.
By the Chick’s Law,
ratio of Initial number of organisms to number of organisms = ___________
a)
e-kT
b)
1/e-kT
c)
-1/e-kT
d)
-e-kT
66.
Disinfection kinetics is better in ____________
reactors
a)
Plug-flow
(pipe)
b)
batch (back-mixed)
c)
Nuclear
d)
Both (a) & (b)
67.
Disinfection activity can be expressed as the
product of = _______________
a)
Disinfection
concentration & contact time
b)
Infiltration concentration & contact time
c)
Infiltration concentration & reaction time
d)
Any of above
68.
For disinfection activity (DA); if C = 50 mg/l
and T = 2 min then DA = ___________ mg/l-min
a)
25
b)
100
c)
48
d)
52
69.
Microbial ______________ protects microbes
from inactivation
a)
Aggregation
b)
Segregation
c)
Attach
d)
None
70.
Free chlorine exists in __________ form
a)
Solid
b)
Liquid
c)
Gas
d)
All
71.
Recommended maximum residual concentration of
free chlorine ____________
a)
5 mg/L
b)
= 5 mg/L
c)
< 5
mg/L
d)
None
72.
Presence of _____________ in water or
wastewater and the addition of free chlorine results in an available chlorine
curve with a “hump”
a)
Chlorine
b)
Bromine
c)
Iron
d)
Ammonia
73.
CO2 has high solubility in water
__________ greater than free chlorine
a)
2 times
b)
3 times
c)
4 times
d)
5 times
74.
The primary source of all water supplies is
____________
a)
Precipitation
b)
Ground water
c)
Surface Water
d)
Glaciers
75.
___________ is that portion which flows over
the surface of ground as storm water or flood flow to appear in the form of
stream.
a)
Run-off
b)
Stream flow
c)
Pipe flow
d)
None
76.
____________ is the portion penetrating into
the interstices of the soil and eventually becoming a part of the ground water.
a)
Percolation
b)
Transpiration
c)
Run off
d)
All of above
77.
____________ is the
portion taken up and disposed of by the leaves of the growing vegetation.
a)
Percolation
b)
Transpiration
c)
Run off
d)
All of above
78.
_____________ is the part lost to the
atmosphere from the land and
water surfaces due to the heat of the sun.
a)
Percolation
b)
Transpiration
c)
Run off
d)
Evaporation
79.
___________ is the descriptive term applied to
the general circulation of water from seas to the atmosphere, to ground and
back to the seas.
a)
Hydrological
Cycle
b)
Water Treatment cycle
c)
Natural cycle
d)
None
80.
Water from ___________ when used as a source
of water supply is required to be collected and stored in underground
reservoirs
a)
Rainfall
b)
Mineral water
c)
Ground
d)
River
81.
The ___________ variations in rainfall are due
to direction of prevailing winds and location of mountain ranges.
a)
Monthly
b)
Annual
c)
Geographical
d)
None
82.
The rainfall during __________ months is
partly used up by vegetation.
a)
Spring
b)
summer
c)
Winter
d)
autumn
83.
Run-off is measured in the following units:
a)
Cubic meter per second
b)
Hectare-meter
c)
mm per hour
d) Both (a) & (b)
84.
Run-off is measured by the following methods:
a)
Rainfall-runoff records,
b)
Empirical formulae
c)
Gauging
d)
All of
them
85.
For R = KP; K ranges from _________
a)
0.5 – 0.8
b)
0.05 – 0.8
c)
0.6 – 0.8
d)
0.6 – 0.7
86.
An impounding
reservoir essentially consists of ________ parts.
a)
One
b)
Two
c)
Three
d)
Four
87. The general factors to be considered in design
impounding reservoir are ________
a) Run-Off
b) Total demand of water
c)
Both (a) & (b)
d) None
88.
Ground water is the
accumulation of water below the surface of ground, caused by the portion of
rainfall about ___________ percent
a)
20 per cent
b)
30 per cent
c)
50 per cent
d) 60 per cent
89.Dug wells are large diameter holes that are usually more than
___________ wide.
a)
2 feet
b)
3 feet
c)
4 feet
d)
5 feet
90.
____________ are
common in Kentucky.
a)
Drilled Wells
b)
Dug wells
c)
Both (a) & (b)
d)
None
91.
Well Casing should
be ___________ or more above the surface and __________ above flood level.
a)
12 inches and 1-2 feet
b)
6 inches and 1-2
feet
c)
12 inches and 2-3
feet
d)
6 inches and 2-3
feet
92. What are the common Methods Used to Construct
Water Wells?
a)
Hand dug
b)
Driven
c)
Drilled
d) All of above
