Intro Radiobiology & Radiation Protection Quiz

The definition of radiation is

• Energy in transit from one location to another

• A type of electromagnetic wave

• A chemical reaction

• A form of matter

The following types of radiation is known to have enough energy to remove tightly bound electrons from atoms:

• Infrared radiation

• Visible light

• Gamma rays

• Sound waves

The unit of measurement for absorbed dose is

• Becquerel

• Gray

• Coulomb

• Sievert

The following is a source of natural radiation:

• Medical X-rays

• Terrestrial radiation

• Nuclear power plants

• Smoke alarms

The percentage of radiation exposure comes from natural sources:

• 100%

• 20%

• 80%

• 50%

The term 'equivalent dose' refer to

• The total amount of radiation absorbed

• A measure of biologic harm from different types of radiation

• The distance radiation can penetrate

• The amount of radiation emitted by a source

The following is the SI unit for equivalent dose:

• Sievert

• Coulomb

• Gray

• Rem

If an individual receives an absorbed dose of 0.1 Gy of X-rays and 0.2 Gy of alpha particles, the total dose equivalent is

• 2.0 Sv

• 0.3 Sv

• 4.1 Sv

• 0.1 Sv

The radiation weighting factor (WR) for X-rays is

• 20

• 1

• 10

• 5

The following is NOT a principle of optimization of radiation protection:

• Shielding

• Distance

• Exposure

• Time