RF Radiation Hazards Flashcards
RF Radiation is considered to be:
non-ionizing energy being transmitted between the frequencies of 3 KHz and 300
GHz.
Primary sources of RF radiation around an A/C are from the:
radio and radar systems.
RF Heating: Non-ionizing radiation causes:
heat to be generated.
Electrical Shock: Normal occurrences of electrical shock happen at:
the antenna during transmission.
The first sign of possible exposure to RF radiation is:
a feeling of being sick.
The A/C radar should not be turned on and A/C radio transmissions should not be made during:
A/C fueling or defueling operations.
The normal standard is a ____ separation between fueling and radar service points.
300’
The radar can normally be tested safely on the ground by placing the:
A/C in an open area with the antenna tilted upward so the beam cannot strike any object on the ground.
Weather radar systems should never be:
operated in the hangar.
The FCC guidelines for human exposure to RF fields were derived from the recommendations two expert organizations:
The National Council on Radiation Protection and Measurements (NCRP) and the Institute of Electrical and Electronics Engineers (IEEE).
The most restrictive limits on whole-body exposure are in the frequency range of:
30-300 MHz where the RF energy is absorbed most efficiently when the whole body is exposed.
Radio frequency (RF) and Microwave (MW) radiation are electromagnetic radiation in the frequency ranges:
3 KHz - 300 MHz (RF), and 300MHz - 300 GHz (MW) respectively.
1910.97, Nonionizing radiation. The exposure limit in this standard is _________ and is expressed in voluntary language and has been ruled unenforceable for Federal OSHA enforcement. The standard does specify the design of an RF warning sign. Newer designs are also acceptable.
(10 W/sq. cm.)
1926.54 is for:
Non-ionizing radiation
1926.54(I) is for:
Construction. Limits worker exposure to 10 mW/sq.cm for construction work
