CEA CEA Noise & Radiation Pollution Control 1 — Questions and Answers
Question 1: What U.S. federal agency is primarily responsible for establishing noise emission standards under the Noise Control Act of 1972?
- EPA (Correct answer)
- OSHA
- DOT
- NIOSH
Correct answer: EPA
The EPA was designated the lead federal agency for setting noise emission standards under the Noise Control Act of 1972.
Question 2: Which unit is used to measure sound pressure level in environmental noise assessments?
- Decibel (dB) (Correct answer)
- Hertz (Hz)
- Pascal (Pa)
- Watt (W)
Correct answer: Decibel (dB)
Decibels (dB) are the standard unit for measuring sound pressure level in environmental noise assessments.
Question 3: What is the OSHA permissible exposure limit (PEL) for noise in the workplace over an 8-hour day?
- 90 dBA (Correct answer)
- 85 dBA
- 100 dBA
- 75 dBA
Correct answer: 90 dBA
OSHA's PEL for occupational noise exposure is 90 dBA as an 8-hour time-weighted average (TWA).
Question 4: Which type of radiation is classified as ionizing and poses the greatest concern for environmental auditors near nuclear facilities?
- Gamma radiation (Correct answer)
- Infrared radiation
- Ultraviolet radiation
- Microwave radiation
Correct answer: Gamma radiation
Gamma radiation is a high-energy ionizing radiation of greatest concern near nuclear facilities due to its penetrating power.
Question 5: What instrument is used to measure ambient noise levels during an environmental audit?
- Sound level meter (Correct answer)
- Geiger counter
- Spectrophotometer
- Anemometer
Correct answer: Sound level meter
A sound level meter is the standard instrument used to measure ambient noise levels during environmental noise audits.
Question 6: Which federal regulation governs the management and disposal of low-level radioactive waste in the U.S.?
- Low-Level Radioactive Waste Policy Act (Correct answer)
- Nuclear Waste Policy Act
- Atomic Energy Act
- Clean Air Act
Correct answer: Low-Level Radioactive Waste Policy Act
The Low-Level Radioactive Waste Policy Act assigns states responsibility for the disposal of low-level radioactive waste generated within their borders.
CEA CEA Noise & Radiation Pollution Control 1
What U.S. federal agency is primarily responsible for establishing noise emission standards under the Noise Control Act of 1972?