PTAC 2420 final | UPDATED Questions with 100% Verified Answers

PTAC 2420 final | UPDATED Questions with 100% Verified Answers

Question:
2. Fire water pumps are usually what kind of pumps?
_________________ or _______________.

Answer:
positive displacement or centrifugal


Question:
5. Where in the waste water system do the aerobic microbes
eat the solids and oil?

Answer:
In the aeration stage, aeration basin


Question:
6. What does the word Aerobic mean?

Answer:
requires oxygen


Question:
1. What is a Cation?

Answer:
atoms or group of atoms having a net positive charge


Question:
4. What is a Atom?

Answer:
smallest unit of matter that defines the chemical elements


Question:
8. Why do we add chlorine to potable water

Answer:
it is a biocide that kills bacteria

, Question:
1. Define relative humidity

Answer:
water vapor amount in the air at a given temperature


Question:
6. Corrosion inhibitors used in cooling water systems are
called ______________.

Answer:
passivators


Question:
8. In a cooling tower Conductivity is directly related to
_________________.

Answer:
the amount of total dissolved solids within the water solution


Question:
6. What is the purpose of a letdown station in a Nitrogen
system?

Answer:
To reduce the pressure of the pipeline as needed to the required pressure for various
uses


Question:
10. What is the purpose of nitrogen blanketing in a tank?

Answer:
provide a positive pressure seal


Question:
2. CH4 is called?

Answer:
methane