T0B-2010: Antenna installation; tower safety, overhead power lines
T0B01:
When should members of a tower work team wear a hard hat and safety glasses?
At all times when any work is being done on the tower
At all times except when climbing the tower
At all times except when belted firmly to the tower
Only when the tower exceeds 30 feet in height
T0B02:
What is a good precaution to observe before climbing an antenna tower?
Put on a climbing harness and safety glasses
Make sure that you wear a grounded wrist strap
Remove all tower grounding connections
All of the these choices are correct
T0B03:
Under what circumstances is it safe to climb a tower without a helper or observer?
Never
When no electrical work is being performed
When no mechanical work is being performed
When the work being done is not more than 20 feet above the ground
T0B04:
Which of the following is an important safety precaution to observe when putting up an antenna tower?
Look for and stay clear of any overhead electrical wires
Wear a ground strap connected to your wrist at all times
Insulate the base of the tower to avoid lightning strikes
All of these choices are correct
T0B05:
What is the purpose of a gin pole?
To lift tower sections or antennas
To temporarily replace guy wires
To be used in place of a safety harness
To provide a temporary ground
T0B06:
What is the minimum safe distance from a power line to allow when installing an antenna?
So that if the antenna falls unexpectedly, no part of it can come closer than 10 feet to the power wires
Half the width of your property
The height of the power line above ground
1/2 wavelength at the operating frequency
T0B07:
Which of the following is an important safety rule to remember when using a crank-up tower?
This type of tower must never be climbed unless it is in the fully retracted position
This type of tower must never be painted
This type of tower must never be grounded
All of these choices are correct
T0B08:
What is considered to be a proper grounding method for a tower?
Separate eight-foot long ground rods for each tower leg, bonded to the tower and each other
A single four-foot ground rod, driven into the ground no more than 12 inches from the base
A ferrite-core RF choke connected between the tower and ground
A connection between the tower base and a cold water pipe
T0B09:
Why should you avoid attaching an antenna to a utility pole?
The antenna could contact high-voltage power wires
The antenna will not work properly because of induced voltages
The utility company will charge you an extra monthly fee
All of these choices are correct
T0B10:
Which of the following is true concerning grounding conductors used for lightning protection?
Sharp bends must be avoided
Only non-insulated wire must be used
Wires must be carefully routed with precise right-angle bends
Common grounds must be avoided
T0B11:
Which of the following establishes grounding requirements for an amateur radio tower or antenna?
Local electrical codes
FCC Part 97 Rules
FAA tower lighting regulations
Underwriters Laboratories’ recommended practices
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Color key:
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● = Unseen
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● = Weak
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● = Review
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● = Learned
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● = Incorrect answer
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