NRRPT Radioactive Waste Management & Disposal

Question 1

Under 10 CFR Part 61, low-level radioactive waste (LLW) is divided into how many disposal classes?

Accepted Answer

Three classes: A, B, and C

Answer

10 CFR Part 61 establishes three classes—A, B, and C—based on radionuclide concentrations and required isolation periods.

Question 2

Which federal law established the framework requiring states to develop compacts for low-level radioactive waste disposal?

Accepted Answer

Low-Level Radioactive Waste Policy Amendments Act of 1985

Answer

The Low-Level Radioactive Waste Policy Amendments Act of 1985 made states responsible for LLW generated within their borders and encouraged interstate compacts.

Question 3

What is the definition of 'mixed waste' in radioactive waste management?

Accepted Answer

Waste that is both radioactive and hazardous under RCRA

Answer

Mixed waste contains both radioactive material regulated under the Atomic Energy Act and hazardous waste regulated under the Resource Conservation and Recovery Act (RCRA).

Question 4

Which facility is specifically designed for the disposal of transuranic (TRU) waste from US defense activities?

Accepted Answer

Waste Isolation Pilot Plant (WIPP)

Answer

The Waste Isolation Pilot Plant (WIPP) in New Mexico is the only operating deep geological repository in the US, specifically for defense TRU waste.

Question 5

What activity concentration defines transuranic (TRU) waste in the US?

Accepted Answer

Greater than 100 nCi/g of TRU radionuclides

Answer

TRU waste is defined as waste containing more than 100 nCi/g of alpha-emitting TRU isotopes with half-lives greater than 20 years.

(NRRPT) National Registry of Radiation Protection Technicians Practice Test

(NRRPT) National Registry of Radiation Protection Technicians Practice Test

NRRPT Radioactive Waste Management & Disposal