HAM RADIO FINAL EXAM QUESTIONS WITH SOLUTIONS
A+ GRADED A+ 2025/2026
✔✔T0B02
What is a good precaution to observe before climbing an antenna tower?
A. Make sure that you wear a grounded wrist strap
B. Remove all tower grounding connections
C. Put on a carefully inspected climbing harness(fall arrester)and safety glasses
D. All of these choices are correct - ✔✔C
✔✔T0B03
Under what circumstances is it safe to climb a tower without a helper or observer?
A. When no electrical work is being performed
B. When no mechanical work is being performed
C. When the work being done is not more than 20 feet above the ground
D. Never - ✔✔D
✔✔T0B04
Which of the following is an important safety precaution to observe when putting up an
antenna tower?
A. Wear a ground strap connected to your wrist at all times
B. Insulate the base of the tower to avoid lightning strikes
C. Look for and stay clear of any overhead electrical wires
D. All of these choices are correct - ✔✔C
✔✔T0B05
What is the purpose of a gin pole?
A. To temporarily replace guy wires
B. To be used in place of a safety harness
C. To lift tower sections or antennas
D. To provide a temporary ground - ✔✔C
✔✔T0B06
What is the minimum safe distance from a power line to allow when installing an
antenna?
A. Half the width of your property
B. The height of the power line above ground
C. 1/2 wavelength at the operating frequency
D. Enough so that if the antenna falls unexpectedly, no part of it can come closer than
10 feet to the power wires - ✔✔D
✔✔T0B07
Which of the following is an important safety rule to remember when using a crank-up
tower?
A. This type of tower must never be painted
,B. This type of tower must never be grounded
C. This type of tower must not be climbed unless retracted or mechanical safety locking
devices have been installed
D. All of these choices are correct - ✔✔C
✔✔T0B08
What is considered to be a proper grounding method for a tower?
A. A single four-foot ground rod, driven into the ground no more than 12 inches from the
base
B. A ferrite-core RF choke connected between the tower and ground
C. Separate eight-foot long ground rods for each tower leg, bonded to the tower and
each other
D. A connection between the tower base and a cold water pipe - ✔✔C
✔✔T0B09
Why should you avoid attaching an antenna to a utility pole?
A. The antenna will not work properly because of induced voltages
B. The utility company will charge you an extra monthly fee
C. The antenna could contact high-voltage power lines
D. All of these choices are correct - ✔✔C
✔✔T0B10
Which of the following is true when installing grounding conductors used for lightning
protection?
A. Only non-insulated wire must be used
B. Wires must be carefully routed with precise right-angle bends
C. Sharp bends must be avoided
D. Common grounds must be avoided - ✔✔C
✔✔T0B11
Which of the following establishes grounding requirements for an amateur radio tower
or antenna?
A. FCC Part 97 Rules
B. Local electrical codes
C. FAA tower lighting regulations
D. UL recommended practices - ✔✔B
✔✔T0B12
Which of the following is good practice when installing ground wires on a tower for
lightning protection?
A. Put a loop in the ground connection to prevent water damage to the ground system
B. Make sure that all bends in the ground wires are clean, right-angle bends
C. Ensure that connections are short and direct
D. All of these choices are correct - ✔✔C
,✔✔T0B13
What is the purpose of a safety wire through a turnbuckle used to tension guy lines?
A. Secure the guy if the turnbuckle breaks
B. Prevent loosening of the guy line from vibration
C. Prevent theft or vandalism
D. Deter unauthorized climbing of the tower - ✔✔B
✔✔T0C01
What type of radiation are VHF and UHF radio signals?
A. Gamma radiation
B. Ionizing radiation
C. Alpha radiation
D. Non-ionizing radiation - ✔✔D
✔✔T0C02
Which of the following frequencies has the lowest value for Maximum Permissible
Exposure limit?
A. 3.5 MHz
B. 50 MHz
C. 440 MHz
D. 1296 MHz - ✔✔B
✔✔T0C03
What is the maximum power level that an amateur radio station may use at VHF
frequencies before an RF exposure evaluation is required?
A. 1500 watts PEP transmitter output
B. 1 watt forward power
C. 50 watts PEP at the antenna
D. 50 watts PEP reflected power - ✔✔C
✔✔T0C04
What factors affect the RF exposure of people near an amateur station antenna?
A. Frequency and power level of the RF field
B. Distance from the antenna to a person
C. Radiation pattern of the antenna
D. All of these choices are correct - ✔✔D
✔✔T0C05
Why do exposure limits vary with frequency?
A. Lower frequency RF fields have more energy than higher frequency fields
B. Lower frequency RF fields do not penetrate the human body
C. Higher frequency RF fields are transient in nature
D. The human body absorbs more RF energy at some frequencies than at others -
✔✔D
, ✔✔T0C06
Which of the following is an acceptable method to determine that your station complies
with FCC RF exposure regulations?
A. By calculation based on FCC OET Bulletin 65
B. By calculation based on computer modeling
C. By measurement of field strength using calibrated equipment
D. All of these choices are correct - ✔✔D
✔✔T0C07
What could happen if a person accidentally touched your antenna while you were
transmitting?
A. Touching the antenna could cause television interference
B. They might receive a painful RF burn
C. They might develop radiation poisoning
D. All of these choices are correct - ✔✔B
✔✔T0C08
Which of the following actions might amateur operators take to prevent exposure to RF
radiation in excess of FCC-supplied limits?
A. Relocate antennas
B. Relocate the transmitter
C. Increase the duty cycle
D. All of these choices are correct - ✔✔A
✔✔T0C09
How can you make sure your station stays in compliance with RF safety regulations?
A. By informing the FCC of any changes made in your station
B. By re-evaluating the station whenever an item of equipment is changed
C. By making sure your antennas have low SWR
D. All of these choices are correct - ✔✔B
✔✔T0C10
Why is duty cycle one of the factors used to determine safe RF radiation exposure
levels?
A. It affects the average exposure of people to radiation
B. It affects the peak exposure of people to radiation
C. It takes into account the antenna feed line loss
D. It takes into account the thermal effects of the final amplifier - ✔✔A
✔✔T0C11
What is the definition of duty cycle during the averaging time for RF exposure?
A. The difference between the lowest power output and the highest power output of a
transmitter
B. The difference between the PEP and average power output of a transmitter
C. The percentage of time that a transmitter is transmitting
A+ GRADED A+ 2025/2026
✔✔T0B02
What is a good precaution to observe before climbing an antenna tower?
A. Make sure that you wear a grounded wrist strap
B. Remove all tower grounding connections
C. Put on a carefully inspected climbing harness(fall arrester)and safety glasses
D. All of these choices are correct - ✔✔C
✔✔T0B03
Under what circumstances is it safe to climb a tower without a helper or observer?
A. When no electrical work is being performed
B. When no mechanical work is being performed
C. When the work being done is not more than 20 feet above the ground
D. Never - ✔✔D
✔✔T0B04
Which of the following is an important safety precaution to observe when putting up an
antenna tower?
A. Wear a ground strap connected to your wrist at all times
B. Insulate the base of the tower to avoid lightning strikes
C. Look for and stay clear of any overhead electrical wires
D. All of these choices are correct - ✔✔C
✔✔T0B05
What is the purpose of a gin pole?
A. To temporarily replace guy wires
B. To be used in place of a safety harness
C. To lift tower sections or antennas
D. To provide a temporary ground - ✔✔C
✔✔T0B06
What is the minimum safe distance from a power line to allow when installing an
antenna?
A. Half the width of your property
B. The height of the power line above ground
C. 1/2 wavelength at the operating frequency
D. Enough so that if the antenna falls unexpectedly, no part of it can come closer than
10 feet to the power wires - ✔✔D
✔✔T0B07
Which of the following is an important safety rule to remember when using a crank-up
tower?
A. This type of tower must never be painted
,B. This type of tower must never be grounded
C. This type of tower must not be climbed unless retracted or mechanical safety locking
devices have been installed
D. All of these choices are correct - ✔✔C
✔✔T0B08
What is considered to be a proper grounding method for a tower?
A. A single four-foot ground rod, driven into the ground no more than 12 inches from the
base
B. A ferrite-core RF choke connected between the tower and ground
C. Separate eight-foot long ground rods for each tower leg, bonded to the tower and
each other
D. A connection between the tower base and a cold water pipe - ✔✔C
✔✔T0B09
Why should you avoid attaching an antenna to a utility pole?
A. The antenna will not work properly because of induced voltages
B. The utility company will charge you an extra monthly fee
C. The antenna could contact high-voltage power lines
D. All of these choices are correct - ✔✔C
✔✔T0B10
Which of the following is true when installing grounding conductors used for lightning
protection?
A. Only non-insulated wire must be used
B. Wires must be carefully routed with precise right-angle bends
C. Sharp bends must be avoided
D. Common grounds must be avoided - ✔✔C
✔✔T0B11
Which of the following establishes grounding requirements for an amateur radio tower
or antenna?
A. FCC Part 97 Rules
B. Local electrical codes
C. FAA tower lighting regulations
D. UL recommended practices - ✔✔B
✔✔T0B12
Which of the following is good practice when installing ground wires on a tower for
lightning protection?
A. Put a loop in the ground connection to prevent water damage to the ground system
B. Make sure that all bends in the ground wires are clean, right-angle bends
C. Ensure that connections are short and direct
D. All of these choices are correct - ✔✔C
,✔✔T0B13
What is the purpose of a safety wire through a turnbuckle used to tension guy lines?
A. Secure the guy if the turnbuckle breaks
B. Prevent loosening of the guy line from vibration
C. Prevent theft or vandalism
D. Deter unauthorized climbing of the tower - ✔✔B
✔✔T0C01
What type of radiation are VHF and UHF radio signals?
A. Gamma radiation
B. Ionizing radiation
C. Alpha radiation
D. Non-ionizing radiation - ✔✔D
✔✔T0C02
Which of the following frequencies has the lowest value for Maximum Permissible
Exposure limit?
A. 3.5 MHz
B. 50 MHz
C. 440 MHz
D. 1296 MHz - ✔✔B
✔✔T0C03
What is the maximum power level that an amateur radio station may use at VHF
frequencies before an RF exposure evaluation is required?
A. 1500 watts PEP transmitter output
B. 1 watt forward power
C. 50 watts PEP at the antenna
D. 50 watts PEP reflected power - ✔✔C
✔✔T0C04
What factors affect the RF exposure of people near an amateur station antenna?
A. Frequency and power level of the RF field
B. Distance from the antenna to a person
C. Radiation pattern of the antenna
D. All of these choices are correct - ✔✔D
✔✔T0C05
Why do exposure limits vary with frequency?
A. Lower frequency RF fields have more energy than higher frequency fields
B. Lower frequency RF fields do not penetrate the human body
C. Higher frequency RF fields are transient in nature
D. The human body absorbs more RF energy at some frequencies than at others -
✔✔D
, ✔✔T0C06
Which of the following is an acceptable method to determine that your station complies
with FCC RF exposure regulations?
A. By calculation based on FCC OET Bulletin 65
B. By calculation based on computer modeling
C. By measurement of field strength using calibrated equipment
D. All of these choices are correct - ✔✔D
✔✔T0C07
What could happen if a person accidentally touched your antenna while you were
transmitting?
A. Touching the antenna could cause television interference
B. They might receive a painful RF burn
C. They might develop radiation poisoning
D. All of these choices are correct - ✔✔B
✔✔T0C08
Which of the following actions might amateur operators take to prevent exposure to RF
radiation in excess of FCC-supplied limits?
A. Relocate antennas
B. Relocate the transmitter
C. Increase the duty cycle
D. All of these choices are correct - ✔✔A
✔✔T0C09
How can you make sure your station stays in compliance with RF safety regulations?
A. By informing the FCC of any changes made in your station
B. By re-evaluating the station whenever an item of equipment is changed
C. By making sure your antennas have low SWR
D. All of these choices are correct - ✔✔B
✔✔T0C10
Why is duty cycle one of the factors used to determine safe RF radiation exposure
levels?
A. It affects the average exposure of people to radiation
B. It affects the peak exposure of people to radiation
C. It takes into account the antenna feed line loss
D. It takes into account the thermal effects of the final amplifier - ✔✔A
✔✔T0C11
What is the definition of duty cycle during the averaging time for RF exposure?
A. The difference between the lowest power output and the highest power output of a
transmitter
B. The difference between the PEP and average power output of a transmitter
C. The percentage of time that a transmitter is transmitting
