1.
Tires
& Rubber waste comes under:
a) Yard
waste b) Metal waste c) Organic waste d)
Paper waste
2.
White
Goods waste comes under:
a) Yard
waste b) Metal waste c)
Organic waste d) Paper waste
3) Sewerage sludge comes under:
a) Organic
waste category b)Special waste category c)
Yard waste category d) Plastic category
4) In
Rawalpindi, generation of solid waste in 2002 is:
a)
0.65 kg/c/day b) 0.75 kg/c/day
c) 0.85
kg/c/day
d) 0.95 kg/c/day
5)
_________ are used to reduce to
desirable sizes for treatment of composting etc.
a) Shredders b)
separators
c) scrappers d)
both (a) and (b)
6) Density of Solid Waste varies with:
a) length of
time b) location
c) season d) all of the above
7) Field
capacity of un-compacted commingled wastes from residential & commercial
sources is about:
a) 20-30%.
b) 30-40%.
c)
40-50%. d) 50-60%.
8) Typical
fusion temp ranges from:
a)
1000-1200F b) 2000-2200F
c) 3000-3200F
d) 4000-4200F
9) Almost all
organic fraction of MSW can be converted biologically to:
a) solids b) liquids c) plasma d)
gases
10 ) According
to mode of operation, the collection system
classified into _______ categories:
a) two b) three
c) four d) five
11) There are _______
main types of Haul Container Systems:
a) two b) three
c) four d) five
12) Mesophilic
Temperature ranges from:
a)
25 o to
35o C b) 35 o
to 45o C
c) 45 o
to 55o C d) 55 o to
65o C
13) Psychrophilic
Temperature ranges from:
a)
15 o to
20o C b) 25 o to
30o C
c) 35 o
to 40o C d) 45 o to 50o C
14) Thermophilic Temperature ranges from:
a) 20 o
to 30o C b) 30 o to 40o C
c) 40 o to 50o C d) 50 o to 60o C
15) At the
ideal moisture level, Optimum oxygen levels are:
a) 15 to 20 per cent b) 25 to 30 per cent ‘
c) 35 to 40 per cent d) 45 to 50 per cent
16) Optimum
C/N ratio is:
a) 20 b) 30 c) 40 d) 50
2. Materials
that are a good source of nitrogen are called:
a) Blue b) White c)
Green d) Red
17) Materials that are high in carbon are called:
a) Brown b) Yellow c) Blue d) White
18) Psychrophiles are:
a) low temperature bacteria b) medium temperature bacteria
c) high
temperature bacteria d) none of the above
19) Mesophiles are;
a) low temperature bacteria b)
medium temperature
bacteria
c) high
temperature bacteria d) none of the above
20) Thermophiles are:
a) low temperature bacteria b)
medium temperature bacteria
c) high temperature bacteria d) none of the above
21) Copper is:
a) Light metal b)
Heavy metal c) toxic metal d) non
metal
21) About _______ of the Earth’s land
surfaces (excluding Antarctica ) are covered
with forest and woodland:
a) 30% b) 35%
c) 40% d) 45%
22) The
original forest cover of the Earth approached ________ of land area.
a) 20% b) 30%
c) 40% d) 50%
• 23) ____________
is a forest harvest technique in which all trees in a particular area are cut,
regardless of species or size.
a) Shelter-wood
Cutting b) Selective Cutting
c)
Clear-cutting d) Biomass
harvesting
24. __________
are fires that burn within the organic matter and litter of the soil
a) Ground
fires b) Surface
fires c) Crown
fires d) Plank fire
25)
The most comprehensive piece of legislation regulating protection of all
species of flora and fauna is the Endangered Species Act (ESA), passed in .
a) 1965 b) 1968 c) 1971 d)
1973
26) __________
burn on the ground surface, consuming litter as well as the
herbaceous and shrubby vegetation of the forest floor.
a) Ground fires b) Surface
fires c) Crown
fires d) Plank fire
27)
____________ burn treetops as well as low vegetation, usually killing all or
almost all above-ground vegetation.
a) Ground fires b) Surface fires c) Crown
fires d) Plank fire
28)
__________ is a
timber-harvesting technique in which only trees of specified size or species
are taken, leaving other trees.
a) Shelter-wood Cutting b)
Selective Cutting
c) Clear-cutting d) Biomass harvesting
29) ________ is a forest harvest
technique in which whole trees are chipped and used as fuel or to make pulp.
a) Shelter-wood Cutting b) Selective Cutting
c) Clear-cutting d) Biomass
harvesting
30) WASA is
formed in:
a) 1994 b) 1995
c) 1996 d) 1997
31) Public
Health Service was established in:
a) 1798 b) 1805 c) 1808 d) 1810
32) EPA was established in :
a) December 4, 1970 b) December 3, 1970
c) December 2, 1970
d) December 1, 1970
33) Total
generation of Solid Wastes in Rawalpindi
City
a) 703 tons
per day b) 713
tons per day
c)
723 tons per day d ) 733 tons per day
34) Specific
wt, expressed in material per unit volume, units are:
a) lb/m3 b) lb/ft3
c) lb/yd3 d) lb/in3
35) Lignin content of VS, expressed as a %
by _________:
a) Mass b) Volume c)
Weight d) either (a) and (b)
