Nuclear Radiation Quiz.Ch21.Sec3

The nuclear waste from a nuclear reactor is

• a. a useful source of heat.

• b. made up mostly of uranium-235.

• c. often released to the environment.

• d. radioactive and harmful.

Which of the following is not an example of an application of nuclear radiation?

• a. radioactive dating

• b. radioactive tracers

• c. cobalt-60 irradiation

• d. X-ray machines

Which of the following statements is true about film badges that are used to monitor radiation exposure?

• a. Radiation causes the film to undergo nuclear fission.

• b. The film is affected only by alpha particles.

• c. The exposure of the film indicates the approximate exposure to radiation.

• d. Both (a) and (c)

Which particles are unable to penetrate human skin?

• a. beta particles

• b. alpha particles

• c. gamma rays

• d. parent nuclides

All of the following are radiation detection devices except

• a. film badges.

• b. Geiger-Müller counters.

• c. scintillation counters.

• d. glass shields.

When humans are at higher altitudes, their exposure to radiation

• a. increases.

• b. decreases.

• c. remains the same.

• d. is neutralized.

The amount of gamma and X-ray radiation that produces 2 x 10⁹ ion pairs when it passes through 1 cm³ of dry air is the

• a. rem.

• b. half-life.

• c. roentgen.

• d. radioactive tracer.

How does the amount of damage to human tissue from 1 rem of radiation compare with the amount of damage from 1 roentgen of high-voltage X rays?

• a. slightly more

• b. much less

• c. equal

• d. 10 times as much

Which will not shield beta particles?

• a. lead

• b. glass

• c. concrete

• d. paper

How does the half-life of radioactive waste from medical research compare with the half-life of radioactive waste from nuclear reactors?

• a. much shorter

• b. little longer

• c. the same

• d. much longer