RDA Practice Quiz 4-Dental Radiography

In the dental office, rooms and equipment that are often overlooked for disinfecting include

• radiography room

• radiography processing equipment

• dental laboratory

• all of the above

The inventor of x-rays is____________.

• Kells

• Roentgen

• Black

• none of the above

Which statement equals more energy?

• Short wavelength with high frequency

• Short wavelength with low frequency

• Long wavelength with low frequency

• Long wavelength with high frequency

The central beam that comes from the x-ray tube head is _____radiation.

• primary

• secondary

• scatter

• none of the above

The radiation formed when the primary x-rays strike the patient is ____________radiation.

• leakage

• secondary

• scatter

• none of the above

The radiation that is deflected from its path as it strikes matter is _______radiation.

• primary

• secondary

• scatter

• none of the above

The form of radiation that escapes in all directions from the tube head is______radiation.

• Primary

• leakage

• scatter

• secondary

The tissues/organs most sensitive to radiation include:

• bone marrow and reproductive cell

• nerve, liver, bone, marrow, reproductive cell

• nerve, liver, bone marrow

• none of the above

The MPD per year for radiation workers is _____rems.

• 0.05

• 50

• 5

• 0.005

The effects of radiation are _________.

• lost with time

• dissipated

• accumulative

• none of the above