Practice Test: IB CHEM-waste

Matching skip

Short Answer skip

1. What are beta particles?
   
2. What is high level waste?
   
3. What does low level radioactive waste get compacted to?
   
4. methods of waste disposal
   
5. disadvantage for ocean dumping
   

Multiple Choice skip

1. high level waste
   1. expensive, difficult in separating different materials
   2. unsightly, causes air and ground water pollution, health hazard encourages rodents and insects
   3. inexpensive, convenient (to the dumper)
   4. high activity and generally the isotopes have long half-lives so waste remains active for a long period
   5. it's a small volume of nuclear waste but contains most of the radioactivity
2. What are the three common types of radioactive emissions?
   1. Gamma rays are high energy electromagnetic radiation that have high penetrating power. They can penetrate a few km of air and several cm of lead but can be stopped by about 10cm of lead or several meters of concrete
   2. it's a small volume of nuclear waste but contains most of the radioactivity
   3. efficient method to deal with large volumes, filled land can be used for building or other community purposes
   4. danger to marine animals, pollutes the sea
   5. Alpha particles, beta particles, gamma rays
3. What are recyclable materials?
   1. expensive to build and operate, can cause pollutants, dioxin, inefficiently burned, requires energy
   2. landfill sites, incineration, large scale composting, recycling and burial of radiocative wastes
   3. rubber gloves, paper towels, protective clothing that have been used in areas where radioactive materials are handled
   4. efficient method to deal with large volumes, filled land can be used for building or other community purposes
   5. paper, glass, metals
4. What does low level radioactive waste and intermediate level nuclear waste be stored in?
   1. provides a sustainable environment
   2. steel containers in concrete vaults below ground
   3. reduced volume. It is buried in shallow lined, land-burial trenches
   4. source of nutrients, convenient and inexpensive
   5. ability of some isotopes to undergo reactions involving nuclear change or transmission
5. What's the difference between beta and alpha particles?
   1. reduces volume, reduce minimal space, produces stable, odor-free residue, can be used as a source of energy
   2. Beta particles are about a 100 times the penetrating power of alpha particles
   3. paper, glass, metals
   4. it's a small volume of nuclear waste but contains most of the radioactivity

True or False skip

1. what's radioactivity?
   how much of the radiation from the incineration is released into the environment, how much is dumped into landfill sites or diluting by dumping it into the sea

   True   False

2. where does high level waste come from?
   Gamma rays are about 100 times the penetrating power of beta particles

   True   False

3. What's banned when it comes to combustible dry low-level waste?
   how much of the radiation from the incineration is released into the environment, how much is dumped into landfill sites or diluting by dumping it into the sea

   True   False

4. disadvantage for incineration
   expensive to build and operate, can cause pollutants, dioxin, inefficiently burned, requires energy

   True   False

5. What are products of low-level nuclear waste?
   reduced volume. It is buried in shallow lined, land-burial trenches

   True   False