B-001-24: Radio frequency electromagnetic field limits
B-001-24-01:
What organization has published safety guidelines for the maximum limits of RF energy near the human body?
Health Canada
Canadian Standards Association
Environment Canada
Transport Canada
B-001-24-02:
What is the purpose of the Safety Code 6?
It gives RF exposure limits for the human body
It lists all RF frequency allocations for interference protection
It sets transmitter power limits for interference protection
It sets antenna height limits for aircraft protection
B-001-24-03:
According to Safety Code 6, what frequencies cause us the greatest risk from RF energy?
30 to 300 MHz
300 to 3000 MHz
Above 1500 MHz
3 to 30 MHz
B-001-24-04:
Why is the limit of exposure to RF the lowest in the frequency range of 30 MHz to 300 MHz, according to Safety Code 6?
The human body absorbs RF energy the most in this range
There are more transmitters operating in this range
There are fewer transmitters operating in this range
Most transmissions in this range are for a longer time
B-001-24-05:
According to Safety Code 6, what is the maximum safe power output to the antenna of a hand-held VHF or UHF radio?
not specified - the exemption for portable equipment was withdrawn in 1999
10 watts
25 watts
125 milliwatts
B-001-24-06:
Which of the following statements is NOT correct?
Permissible exposure levels of RF fields decreases as frequency is decreased below 10 MHz
Maximum exposure levels of RF fields to the general population, in the frequency range 10 to 300 MHz, is 28 VRMS/metre (E-field)
Permissible exposure levels of RF fields increases as frequency is increased above 300 MHz
Permissible exposure levels of RF fields increases as frequency is decreased below 10 MHz
B-001-24-07:
The permissible exposure levels of RF fields:
increases, as frequency is increased above 300 MHz
decreases, as frequency is decreased below 10 MHz
increases, as frequency is increased from 10 MHz to 300 MHz
decreases, as frequency is increased above 300 MHz
B-001-24-08:
Which statement is NOT correct:
portable transmitters, operating below 1 GHz with a power output up to 7 watts, are excluded from Safety Code 6 requirements
maximum exposure level of RF fields for general population, in the range 10 to 300 MHz, is 28 V RMS per metre (E-field)
maximum exposure level of RF fields for general population, in the range 30 to 300 Mhz, is .073 A RMS per metre (H-field)
the exemption of portable transmitters, operating below 1 GHz with a power output up to 7 watts was removed from Safety Code 6 in 1999
B-001-24-09:
Which statement is correct?
the exemption for portable transmitters was eliminated in Safety Code 6 in 1999
Safety Code 6 regulates the operation of receivers only
the operation of portable transmitting equipment is of no concern in Safety Code 6
portable transmitters, operating below 1 GHz, with an output power equal to, or less than 7 watts, are exempt from the requirements of Safety Code 6
B-001-24-10:
The maximum exposure level of RF fields for general population, in the frequency range 10 to 300 MHz is ___ V RMS per metre (E-field):
28
7
37
0.073
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● = Unseen
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● = Review
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● = Learned
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● = Incorrect answer
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