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

ALARA (As Low As Reasonably Achievable) is the guiding principle for minimizing radiation exposure to workers and the public.

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

The Day-Night Average Sound Level (Ldn) adds a 10 dB penalty to nighttime noise (10 PM–7 AM) to account for increased community sensitivity.

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

The NRC limits annual radiation dose to members of the public from licensed operations to 100 mrem (1 mSv) per year.

Question 4

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

Accepted Answer

Lead or dense concrete

Answer

Lead and dense concrete are the most effective shielding materials for attenuating high-energy gamma radiation.

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

Compliance review for noise ordinances requires examining sound monitoring records, neighbor complaint logs, and measured dB levels at property boundaries.

(CEA) Certified Environmental Auditor Practice Test

(CEA) Certified Environmental Auditor Practice Test

CEA CEA Noise & Radiation Pollution Control 3