1. The radiation weighting factor depends :

a. only on the energy of the radiation.

b. only on the particle type of the radiation.

c. both on the energy and the particle type of the radiation.

2. The equivalent dose is:

a. the mean absorbed dose over all irradiated organs.

b. the product of absorbed dose and radiation weighting factor for a given tissue or organ, where the absorbed dose is averaged over the tissue or organ.

c. the product of absorbed dose and tissue weighting factor.

3. In the case of non-uniform irradiation of the body, the risk for stochastic effects is described by:

a. the equivalent dose.

b. the effective dose.

c. the total absorbed dose.

4. The susceptibility of a tissue or organ to radiation is accounted for in:

a. the equivalent dose.

b. the effective dose.

c. the absorbed dose.

5. In the case of internally deposited radionuclides, the dose rate:

a. increases with time.

b. decreases with time.

c. is a constant function of time.

6. The committed effective dose and committed equivalent dose are used in the case of:

a. external irradiation.

b. internal irradiation.

7. The unit of the collective effective dose is:

a. person-Sv.

b. R.

c. Gy.

d. Sv.

8. The recommended monthly limit to the embryo or fetus is:

a. 0.05 mSv.

b. 0.1 mSv.

c. 0.5 mSv.

9. The recommended level for manmade sources other than medical in the case of continuous exposure for the public is (annual effective dose):

a. 1 mSv.

b. 2 mSv.

c. 5 mSv.

d. 20 mSv.

10. The most important problem involving radiation exposure of the public is:

a. radon.

b. medical examinations.

c. accidents in nuclear power plants.