EPA 609 Safety & Environmental Practices 3

Question 1

Ozone in the stratosphere protects the Earth by:

Accepted Answer

Absorbing harmful ultraviolet (UV-B and UV-C) radiation

Answer

Reflecting sunlight back into space

Answer

Trapping heat to maintain global temperatures

Answer

Filtering particulate matter from the atmosphere

Question 2

Chlorine atoms from CFCs destroy ozone through what type of reaction?

Accepted Answer

A catalytic chain reaction where one chlorine atom can destroy thousands of ozone molecules

Answer

A single reaction consuming the chlorine atom

Answer

A slow oxidation process taking decades

Answer

Only in the presence of sunlight and water vapor

Question 3

The 'ozone hole' phenomenon primarily affects which region of the planet?

Accepted Answer

The Antarctic (South Pole) region

Answer

The tropics near the equator

Answer

The Arctic (North Pole) region

Answer

Central North America

Question 4

What is the 'de minimis' exemption in EPA refrigerant regulations?

Accepted Answer

A very small refrigerant release unavoidable during good-faith repair work is not considered venting

Answer

An exemption for shops generating less than $1M revenue

Answer

An exemption for vehicles more than 20 years old

Answer

Permission to vent R-134a in small quantities

Question 5

How should a technician dispose of used refrigerant oil drained from an MVAC system?

Accepted Answer

Dispose of it as hazardous waste through a licensed waste handler

Answer

Add it to the engine crankcase

Answer

Pour it down the shop drain

Answer

Reuse it in the next customer's A/C system

Question 6

What does SNAP stand for in the context of EPA refrigerant regulations?

Accepted Answer

Significant New Alternatives Policy

Answer

Safe and Non-toxic Approved Products

Answer

Standard National Approval Protocol

Answer

Section Nine Approval Process