EPA 608 CERTIFICATION CORE PRACTICE
TEST LATEST ACTUAL EXAM WITH
VERIFIED QUESTIONS & CORRECT ANSWERS
Question 1.
What evidence do we have that CFCs and HCFCs are depleting the ozone?
ANSWER
The rise in the amount of chlorine measured in the stratosphere over the past two decades
matches the rise in the amount of fluorine.
The rise in the amount of chlorine measured in the stratosphere over the past two decades
matches the rise in CFC emissions over the same period.
Samples of air taken from the stratosphere over erupting volcanoes show that volcanoes
contribute a small quantity of chlorine to the stratosphere compared to CFCs.
Question 2.
What is an ozone molecule made of?
ANSWER
Three oxygen atoms (O3).
Question 3.
R-134A is a "drop in" refrigerant for?
ANSWER
R-134A is not a drop-in refrigerant.
Question 4.
The rule of thumb for refilling approved cylinders is a maximum of ___ percent liquid?
ANSWER
80%.
1/4
TEST LATEST ACTUAL EXAM WITH
VERIFIED QUESTIONS & CORRECT ANSWERS
Question 1.
What evidence do we have that CFCs and HCFCs are depleting the ozone?
ANSWER
The rise in the amount of chlorine measured in the stratosphere over the past two decades
matches the rise in the amount of fluorine.
The rise in the amount of chlorine measured in the stratosphere over the past two decades
matches the rise in CFC emissions over the same period.
Samples of air taken from the stratosphere over erupting volcanoes show that volcanoes
contribute a small quantity of chlorine to the stratosphere compared to CFCs.
Question 2.
What is an ozone molecule made of?
ANSWER
Three oxygen atoms (O3).
Question 3.
R-134A is a "drop in" refrigerant for?
ANSWER
R-134A is not a drop-in refrigerant.
Question 4.
The rule of thumb for refilling approved cylinders is a maximum of ___ percent liquid?
ANSWER
80%.
1/4
