FCC Technician Class Exam Study Guide - 2014-2018/Subelement T0 Group B

Antenna safety: tower safety; erecting an antenna support; overhead power lines; installing an antenna

Question 1

 * When should members of a tower work team wear a hard hat and safety glasses?
 * A. At all times except when climbing the tower
 * B. At all times except when belted firmly to the tower
 * C. At all times when any work is being done on the tower
 * D. Only when the tower exceeds 30 feet in height

The correct answer is C.

Question 2

 * 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 climbing harness and safety glasses
 * D. All of the these choices are correct

The correct answer is C.

Question 3

 * 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

The correct answer is D.

Question 4

 * 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

The correct answer is C.

Question 5

 * 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

The correct answer is C.

Question 6

 * 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. So that if the antenna falls unexpectedly, no part of it can come closer than 10 feet to the power wires

The correct answer is D.

Question 7

 * 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 never be climbed unless it is in the fully retracted position
 * D. All of these choices are correct

The correct answer is C.

Question 8

 * 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

The correct answer is C.

Question 9

 * 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 wires
 * D. All of these choices are correct

The correct answer is C.

Question 10

 * Which of the following is true concerning 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

The correct answer is C.

Question 11

 * 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. Underwriters Laboratories' recommended practices

The correct answer is B.

Question 12

 * 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

The correct answer is C.