ACTUAL Exam Questions and CORRECT
Answers
Most of global greenhouse gas emissions are made up of: - CORRECT ANSWER - CO2
(4-041-1.5) Most common processes for the removal of sulphur dioxide from flue gas: -
CORRECT ANSWER - Involve the use of lime, limestone or sulphuric acid
(4-041-1.4) Sulphur oxides are undesirable in flue gas because they: - CORRECT
ANSWER - Contribute to acid rain
(4-042-2.1) The voltage supplied to electrostatic precipitators is in the range of ____________
volts ____________: - CORRECT ANSWER - 10 000 - 100 000 DC
Mineral and organic matter is the basic component of: - CORRECT ANSWER - soil
Nitrous oxides and CFC's both have a damaging effect on: - CORRECT ANSWER - The
ozone layer
When a problem has been identified in a plant, what does "adaptive" action allow? - CORRECT
ANSWER - It allows the plant to operate with the problem indefinitely
What role does the sun play in the water cycle? - CORRECT ANSWER - It causes
evaporation in bodies of water
In a plant, potential environmental problems can be detected by plant personnel. How can they
do this? - CORRECT ANSWER - by noting abnormal conditions and asking questions
, Why is carbon dioxide now being measured in flue gases? - CORRECT ANSWER -
because of its effect on the atmosphere
With regards to solid pollutants, what is a surface impoundment? - CORRECT
ANSWER - It is a pond or lagoon where solid pollutants are stored
(4-040-1.3) Places where ground water leaves the system to become surface water are called: -
CORRECT ANSWER - Discharge points
(4-041-2.3) Sound pressure level is expressed in: - CORRECT ANSWER - Decibels
(4-042-1.1) Mechanical centrifugal collectors are not suitable for the collection of _________
particles. - CORRECT ANSWER - Very fine
(4-042-int.1) Solid pollutants, such as flyash, are produced when burning: - CORRECT
ANSWER - Coal
To lessen long term environmental impact after plant closure, part of the approval process for a
new industrial facility is the requirement for: - CORRECT ANSWER - a reclamation plan.
(4-041-2.2) Which of the following does NOT affect carbon monoxide emissions from a boiler?
- CORRECT ANSWER - the amount of limestone injected into the furnace
Regarding the water cycle, what are oceans and lakes referred to as? - CORRECT
ANSWER - reservoirs
What is "respiration"? - CORRECT ANSWER - the process where animal life takes in
oxygen
Squirrels are herbivores and are also part of the food web. When a squirrel dies, what happens
next? - CORRECT ANSWER - Decomposers break it down into its basic elements