CEA CEA Noise & Radiation Pollution Control 3

Question 1

What does 'ALARA' stand for in the context of radiation protection?

Accepted Answer

As Low As Reasonably Achievable

Answer

Allowable Limit And Radiation Assessment

Answer

Average Level And Radiation Accounting

Answer

Approved Limits And Regulatory Actions

Question 2

Which measurement metric is commonly used in community noise assessments to account for nighttime noise sensitivity?

Accepted Answer

Day-Night Average Sound Level (Ldn)

Answer

Leq

Answer

Lmax

Answer

Lmin

Question 3

What federal limit does the NRC set for annual radiation dose to members of the public from licensed nuclear operations?

Accepted Answer

100 mrem/year

Answer

500 mrem/year

Answer

5,000 mrem/year

Answer

50 mrem/year

Question 4

Which type of shielding material is most effective for blocking gamma radiation?

Accepted Answer

Lead or dense concrete

Answer

Aluminum

Answer

Wood

Answer

Plastic

Question 5

What does an environmental auditor review when assessing a facility's compliance with noise ordinances?

Accepted Answer

Monitoring records, complaint logs, and sound measurement data

Answer

Air emission permits only

Answer

Stormwater discharge reports

Answer

Hazardous waste manifests

Question 6

Which radioactive material is most commonly associated with naturally occurring radioactive material (NORM) contamination at oil and gas sites in the U.S.?

Accepted Answer

Radium-226 and Radium-228

Answer

Uranium-235

Answer

Plutonium-239

Answer

Cesium-137