chapter 1, 2 and 3 Flashcards
1
Q
- The water property that can neutralize acidic pollution and resist changes in pH is
- Alkaline
- pH
- Conductivity
- Turbidity
A
A
2
Q
- The property of water that is quantitative capacity to react with a strong base to a designated pH is called
- Acidity
- Alkaline
- Metals
- Solubility
A
B
3
Q
- The property of water that is to how well it can neutralize acidic pollution and resist changes in pH is called
- Acidity
- Alkaline
- Metals
- Solubility
A
B
4
Q
- is the amount of oxygen consumed by bacteria in the decomposition of organic material
- Acidity
- Alkaline
- Basics
- BOD
A
D
5
Q
- The water conductivity is increasing if the following an inorganic dissolved solids such as chloride, nitrate, sulfate, phosphate, sodium, magnesium, calcium, iron and aluminum is
- increasing
- decreasing
- constant
- the water is pure
A
A
6
Q
- The presence of organic substances like oil, alcohol, and sugar increases, the conductivity of water will be
- increasing
- decreasing
- constant
- zero
A
B
7
Q
- The concentration of dissolved oxygen in a stream is increasing if
a. Temperature decreases\
b. fast moving Flow
c. the Aquatic Plants are more
d. in low Altitudes
e. with low levels of dissolved or suspended solids.
F. all mentioned
A
F
8
Q
- The dissolved oxygen may drop significantly during Thus in streams with significant populations of algae and other aquatic plants, the dissolved oxygen concentration may fluctuated daily, reaching its highest levels in the. Because plants, like animals, also take in oxygen, dissolved oxygen levels may drop significantly by.
- early morning
- late afternoon
- early night
- midday
A
A
9
Q
- The DO is decreasing during
- water release from the bottom of dams
- water release from the top of dams
- no water release from the dams
- all
A
A
10
Q
- Carbonates, bicarbonates and hydroxides are considered as
- Acidic
- Alkaline
- Metals
- BOD
A
B
11
Q
- the amount of oxygen consumed by bacteria in the decomposition of organic material is called
- Conductivity
- BOD
- Fecal Coliform
- Hardness
A
B
12
Q
- The content of calcium and magnesium salts is called
- BOD
- Alkaline
- Hardness
- Metals
A
C
13
Q
- The most toxic metal in high concentrations to aquatic organisms is
- Calsium
- Lead
- Magnesium
- Ammonia
A
B
14
Q
- The essential nutrients of Nitrogen compounds for plants is
- Ammonia
- Nitrite
- Nitrate
- Total Kjeldahl
A
C
15
Q
- The type of Nitrogen that is extremely toxic to aquatic life is
- Ammonia
- Nitrite
- Nitrate
- Total Kjeldahl
A
B