PTAC 2420 Process Tech Systems Exam 4(Final) UPDATED Exam Questions and CORRECT Answers
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Course
PTAC 2420
Institution
PTAC 2420
PTAC 2420 Process Tech Systems Exam
4(Final) UPDATED Exam Questions and
CORRECT Answers
2. Fire water pumps are usually what kind of pumps? _________________ or
_______________. - Correct Answer- positive displacement or centrifugal
5. Where in the waste water system do the aerobic microbes...
PTAC 2420 Process Tech Systems Exam
4(Final) UPDATED Exam Questions and
CORRECT Answers
2. Fire water pumps are usually what kind of pumps? _________________ or
_______________. - Correct Answer- positive displacement or centrifugal
5. Where in the waste water system do the aerobic microbes eat the solids and oil? - Correct
Answer- In the aeration stage, aeration basin
6. What does the word Aerobic mean? - Correct Answer- requires oxygen
1. What is a Cation? - Correct Answer- atoms or group of atoms having a net positive charge
4. What is a Atom? - Correct Answer- smallest unit of matter that defines the chemical
elements
8. Why do we add chlorine to potable water - Correct Answer- it is a biocide that kills
bacteria
1. Define relative humidity - Correct Answer- water vapor amount in the air at a given
temperature
6. Corrosion inhibitors used in cooling water systems are called ______________. - Correct
Answer- passivators
8. In a cooling tower Conductivity is directly related to _________________. - Correct
Answer- the amount of total dissolved solids within the water solution
6. What is the purpose of a letdown station in a Nitrogen system? - Correct Answer- To
reduce the pressure of the pipeline as needed to the required pressure for various uses
, 10. What is the purpose of nitrogen blanketing in a tank? - Correct Answer- provide a positive
pressure seal
2. CH4 is called? - Correct Answer- methane
3. What is the definition of a British Thermal Unit? - Correct Answer- heat up 1 lb of water, 1
degree F
7. H2S is the chemical formula ________________. - Correct Answer- Hydrogen Sulfide
10. Acid rain would have a pH of ________________. - Correct Answer- 5 or lower
1. CH4 - Correct Answer- methane
2. C2H6 - Correct Answer- ethane
3. C3H8 - Correct Answer- propane
4. C4H10 - Correct Answer- butane
5. C5H12 - Correct Answer- pentane
6. C6H14 - Correct Answer- hexane
7. C7H16 - Correct Answer- heptane
8. C8H18 - Correct Answer- octane
1. Boilers are usually divided into two types _______ and __________. - Correct Answer-
fire tube and water tube
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