Quiz on Radiation Sources

Which of the following is a source of natural radiation?

• X-ray machines

• Nuclear reactors

• Cosmic rays

• Radiotherapy equipment

The largest contributor to the average annual radiation dose from natural sources is:

• Cosmic radiation

• Terrestrial radiation

• Inhalation of radon gas

• Medical X-rays

Man-made sources of radiation primarily include:

• Soil radiation

• Cosmic rays

• Nuclear medicine and radiology

• Natural gas

Radiation from terrestrial sources comes from:

• The sun

• Rocks, soil, and minerals

• X-ray machines

• Industrial accidents

The unit of radiation dose most commonly used for measuring absorbed dose is:

• Sievert (Sv)

• Gray (Gy)

• Becquerel (Bq)

• Curie (Ci)

Natural radiation cannot be controlled or reduced.

• True

• False

Radon gas is a significant natural source of radiation exposure indoors.

• True

• False

Medical diagnostic procedures are a major source of man-made radiation exposure.

• True

• False

Cosmic radiation increases at higher altitudes.

• True

• False

Radiation from nuclear power plants contributes significantly to the general population's annual radiation dose.

• True

• False