Power Engineering - 4A5 (Introduction to Plant Operations
and the Environment) Practice Questions With Complete
Solutions
"Transpiration" is the process where:
a. animals inhale oxygen
b. plants release water
c. dissolved oxygen is expelled from water
d. water vapour goes through a phase change Correct Answers
b. plants release water
(4-040-1.4) Organic matter is deposited in the soil by:
a. Wind
b. Water
c. Glaciers
d. Vegetation
e. Gravity Correct Answers d. Vegetation
(4-040-1.6) Air is predominantly composed of:
a. O2, CO2 and CH2
b. O2, N2 and CH2
c. O2 and N2
d. O2, CO2 and H2 Correct Answers c. O2 and N2
(4-040-2.2) The process whereby plants consume carbon
dioxide, water, and the suns energy to make food is known as
a. Hydrolysis
,b. Respiration
c. Hydrostasis
d. Photosynthesis Correct Answers d. Photosynthesis
(4-040-2.3) Energy in the food web:
a. Originates from the sun
b. Travels from the top of the web to the bottom
c. Does not leave the web
d. Is passed through the food web by heat radiation Correct
Answers a. Originates from the sun
(4-040-2.5) Contributions to the ecosystem by the environment
are in the form of:
a. N2, CO2 and H2O
b. CO2, H2O and O2
c. Ar, H2O and O2
d. H2O and O2 Correct Answers b. CO2, H2O and O2
(4-040-2.7) The three major components of an ecosystem are:
a. Animals, plants and decomposers
b. Producers, consumers and inactive organic matter
c. Producers, consumers and air
d. Producers, consumers and sun's energy Correct Answers b.
Producers, consumers and inactive organic matter
(4-041-1.1) Which of the following emissions is NOT
considered a gaseous pollutant?
, a. Carbon monoxide
b. Sulphur oxides
c. Methane
d. Nitrogen Correct Answers d. Nitrogen
(4-041-1.2) Sound pressure levels that are potentially damaging
to plant personnel can NOT be reduced by
a. Enclosing the noise source
b. Modifying the equipment operating conditions
c. Building a barrier
d. Changing the frequency of the sound Correct Answers d.
Changing the frequency of the sound
(4-041-1.3) The nitrogen oxides in flue gas may be reduced by:
a. Employing a dilute sulphuric acid scrubbing system
b. Decreasing the size of the furnace
c. Scrubbing the flue gas with lime
d. Reducing the available oxygen Correct Answers d. Reducing
the available oxygen
(4-041-1.4) Sulfur oxides are undesirable in flue gas because
they:
a. Are not a marketable product
b. Contribute to acid rain
c. Indicate incomplete combustion in the furnace
d. Reduce combustion efficiency Correct Answers b. Contribute
to acid rain
and the Environment) Practice Questions With Complete
Solutions
"Transpiration" is the process where:
a. animals inhale oxygen
b. plants release water
c. dissolved oxygen is expelled from water
d. water vapour goes through a phase change Correct Answers
b. plants release water
(4-040-1.4) Organic matter is deposited in the soil by:
a. Wind
b. Water
c. Glaciers
d. Vegetation
e. Gravity Correct Answers d. Vegetation
(4-040-1.6) Air is predominantly composed of:
a. O2, CO2 and CH2
b. O2, N2 and CH2
c. O2 and N2
d. O2, CO2 and H2 Correct Answers c. O2 and N2
(4-040-2.2) The process whereby plants consume carbon
dioxide, water, and the suns energy to make food is known as
a. Hydrolysis
,b. Respiration
c. Hydrostasis
d. Photosynthesis Correct Answers d. Photosynthesis
(4-040-2.3) Energy in the food web:
a. Originates from the sun
b. Travels from the top of the web to the bottom
c. Does not leave the web
d. Is passed through the food web by heat radiation Correct
Answers a. Originates from the sun
(4-040-2.5) Contributions to the ecosystem by the environment
are in the form of:
a. N2, CO2 and H2O
b. CO2, H2O and O2
c. Ar, H2O and O2
d. H2O and O2 Correct Answers b. CO2, H2O and O2
(4-040-2.7) The three major components of an ecosystem are:
a. Animals, plants and decomposers
b. Producers, consumers and inactive organic matter
c. Producers, consumers and air
d. Producers, consumers and sun's energy Correct Answers b.
Producers, consumers and inactive organic matter
(4-041-1.1) Which of the following emissions is NOT
considered a gaseous pollutant?
, a. Carbon monoxide
b. Sulphur oxides
c. Methane
d. Nitrogen Correct Answers d. Nitrogen
(4-041-1.2) Sound pressure levels that are potentially damaging
to plant personnel can NOT be reduced by
a. Enclosing the noise source
b. Modifying the equipment operating conditions
c. Building a barrier
d. Changing the frequency of the sound Correct Answers d.
Changing the frequency of the sound
(4-041-1.3) The nitrogen oxides in flue gas may be reduced by:
a. Employing a dilute sulphuric acid scrubbing system
b. Decreasing the size of the furnace
c. Scrubbing the flue gas with lime
d. Reducing the available oxygen Correct Answers d. Reducing
the available oxygen
(4-041-1.4) Sulfur oxides are undesirable in flue gas because
they:
a. Are not a marketable product
b. Contribute to acid rain
c. Indicate incomplete combustion in the furnace
d. Reduce combustion efficiency Correct Answers b. Contribute
to acid rain
