Introduction to Nuclear Science and Radiation - Class XI
Covers nuclear physics principles, nuclear power, radioactive waste, and safety aspects of radiation
Questions
Fill in the blank.
__________ arises from the 'burning' of uranium fuel in a nuclear reactor.
- Low-level- waste
- High-level waste
- Intermediate level waste
- Very low level waste
The degree and kind of damage due to radiation varies in which of the following ways?
- kind of radiation
- duration of exposure
- amount of radiation
- All of the above
The wastes generated from hospitals and industry, as well as the nuclear fuel cycle are generally known as
- High-level waste
- Low-level waste
- Intermediate-level waste
- None of the above
Fill in the blank.
- inhalation
- ingestion
- absorption
- all of the above
Spent fuel rods and obsolete nuclear weapons are examples of
- decommissioned waste
- high-level nuclear waste
- low-level nuclear waste
- recycled nuclear waste
- itinerant nuclear waste
The rad is the correct unit used to report the measurement of
- the rate of decay of radioactive source
- the ability of a beam of gamma ray photons to produce ions in a target
- the energy delivered by radiation to a target.
- the biological effect of radiation
Radiation exposure comes from
- Background Sources
- Manmade sources
- Medical processes
- All of the above
Which of the following hazards is not associated with a liquid metal breeder reactor (LMFBR)?
- little fissionable material is formed
- a sodium explosion occurs if it comes in contact with water
- the plutonium by-product can be made into nuclear weapons and, therefore, poses a security risk
- all of the above are hazards associated with the LMFBR
Identify the correct statement/statements :
a) Radiation causes genetic mutation
b) Restriction in blood circulation can be detected using radio-iodine
c) Hydrocarbon plastics are used as moderators in a nuclear reactor
d) The damage caused due to $\alpha$-radiation is small due to its small penetrating power
- a,b,c
- a,c,d
- b,c,d
- a,b,d
PPE is
- equipments for handling radioactive waste.
- equipments for handling radioactive substance.
- Personal Protective Equipment
- none of the above
Which of the following is followed while handling the radioactive materials?
- Wearing protective clothing.
- Keeping as far away as is practicable - for example, by using tongskeeping
- Keeping radioactive materials in lead-lined containers,
- All of the above.
Why should a radioactive substance not be touched by hand?
- It is hot
- It is very cold
- It can harm our body
- None of the above
What safety precautions that you would take while handling the radioactive substances?
- Always wear gloves
- Don't wear gloves
- Wear a proper coat provided in lab
- None of the above
The people working with radioactive materials should put on special
- iron lined aprons and copper gloves.
- silver lined aprons and silver gloves.
- lead lined aprons and lead gloves
- any of the above can be used.