tals of Engineering Prep with Math, Statics, Dynamics
If your treatment objective for the potable reuse of water is to reduce dissolved chemicals,
what treatment technology should you use? - ANSWER Biologically active filtration
If your treatment objective for the potable reuse of water is to remove suspended solids,
what treatment technology should you use? - ANSWER Media filtration
If your treatment objective for the potable reuse of water is to degrade trace organics, what
treatment technology should you use? - ANSWER UV/H2O2
Given the following strategies, place the unit operations and processes in the most likely se-
quence for a surface water treatment facility.
Strategies:
Disinfection
Sedimentation
Flocculation
Rapid Mix
Filtration - ANSWER 1. Rapid Mix (first)
2. Flocculation
3. Sedimentation
4. Filtration
5. Disinfection (last)
A radiant kerosene heater is used to heat a living space. When selecting a home alarm, you
would want to ensure that it monitors which indoor pollutant? Why? -
1
,ANSWER Carbon Monoxide because it poses a risk of an elevated emission rate for
combustion sources with operational anomalies resulting in concentrations above safe levels
in living spaces
The ratio of vapor pressure to saturation pressure of water at a given temperature can be
used to calculate? - ANSWER Relative humidity
Operation of a hydrocarbon combustion process with an increased air-to-fuel ratio from stoi-
chiometric to slightly above stoichiometric would be expected to increase emissions of? -
ANSWER NOx
A slight increase in air-to-fuel ratio provides more complete combustion thus:
CO -> CO2
VOC -> CO2
N -> NOx
For a coal-fired steam electric power plants, control of SOx emissions is most commonly
achieved by - ANSWER Lime scrubbing
SOx is removed by liquid scrubbing at a high pH. Lime may be added to raise the pH
A baghouse is considered an appropriate air pollution control device for which of the follow-
ing pollutant streams? (can be more than one)
A. Carbon Black
B. Carbon Monoxide
C. Fly Ash
D. Formaldehyde
E. Grains
F. Paint Pigments
G. Radon - ANSWER Carbon Black, Fly Ash, Grains, Paint Pigments
Because Baghouses are appropriate technology for the removal of air pollutants that are
particulates.
2
, Incorrect answers:
Carbon Monoxide, Formaldehyde, and Radon
Because they are pollutants in the gas phase and would not be removed by a baghouse
Baghouses are an appropriate technology for the removal of what kind of air pollutants? -
ANSWER Particulates
Which of the following would most likely result in an explosion if the materials were mixed?
A. An isocyanine and an amide
B. Hydrazine and an organic sulfide
C. A caustic and an ester
D. Halogenated organics, alkaline earth metal, and elemental metal - ANSWER Halo-
genated organics, alkaline earth metal, and elemental metal
There is a chemical compatibility chart in the reference manual
What equation would you use to calculate the flow rate of water drawn from a well? - AN-
SWER Dupuit formula
According to the fire/hazard diamond, the diamond in the northern position represents
what? - ANSWER Flammability
According to the fire/hazard diamond, the diamond in the eastern position represents what?
- ANSWER reactivity
According to the fire/hazard diamond, the diamond in the southern position represents
what? - ANSWER special hazards
3
If your treatment objective for the potable reuse of water is to reduce dissolved chemicals,
what treatment technology should you use? - ANSWER Biologically active filtration
If your treatment objective for the potable reuse of water is to remove suspended solids,
what treatment technology should you use? - ANSWER Media filtration
If your treatment objective for the potable reuse of water is to degrade trace organics, what
treatment technology should you use? - ANSWER UV/H2O2
Given the following strategies, place the unit operations and processes in the most likely se-
quence for a surface water treatment facility.
Strategies:
Disinfection
Sedimentation
Flocculation
Rapid Mix
Filtration - ANSWER 1. Rapid Mix (first)
2. Flocculation
3. Sedimentation
4. Filtration
5. Disinfection (last)
A radiant kerosene heater is used to heat a living space. When selecting a home alarm, you
would want to ensure that it monitors which indoor pollutant? Why? -
1
,ANSWER Carbon Monoxide because it poses a risk of an elevated emission rate for
combustion sources with operational anomalies resulting in concentrations above safe levels
in living spaces
The ratio of vapor pressure to saturation pressure of water at a given temperature can be
used to calculate? - ANSWER Relative humidity
Operation of a hydrocarbon combustion process with an increased air-to-fuel ratio from stoi-
chiometric to slightly above stoichiometric would be expected to increase emissions of? -
ANSWER NOx
A slight increase in air-to-fuel ratio provides more complete combustion thus:
CO -> CO2
VOC -> CO2
N -> NOx
For a coal-fired steam electric power plants, control of SOx emissions is most commonly
achieved by - ANSWER Lime scrubbing
SOx is removed by liquid scrubbing at a high pH. Lime may be added to raise the pH
A baghouse is considered an appropriate air pollution control device for which of the follow-
ing pollutant streams? (can be more than one)
A. Carbon Black
B. Carbon Monoxide
C. Fly Ash
D. Formaldehyde
E. Grains
F. Paint Pigments
G. Radon - ANSWER Carbon Black, Fly Ash, Grains, Paint Pigments
Because Baghouses are appropriate technology for the removal of air pollutants that are
particulates.
2
, Incorrect answers:
Carbon Monoxide, Formaldehyde, and Radon
Because they are pollutants in the gas phase and would not be removed by a baghouse
Baghouses are an appropriate technology for the removal of what kind of air pollutants? -
ANSWER Particulates
Which of the following would most likely result in an explosion if the materials were mixed?
A. An isocyanine and an amide
B. Hydrazine and an organic sulfide
C. A caustic and an ester
D. Halogenated organics, alkaline earth metal, and elemental metal - ANSWER Halo-
genated organics, alkaline earth metal, and elemental metal
There is a chemical compatibility chart in the reference manual
What equation would you use to calculate the flow rate of water drawn from a well? - AN-
SWER Dupuit formula
According to the fire/hazard diamond, the diamond in the northern position represents
what? - ANSWER Flammability
According to the fire/hazard diamond, the diamond in the eastern position represents what?
- ANSWER reactivity
According to the fire/hazard diamond, the diamond in the southern position represents
what? - ANSWER special hazards
3
