CallSign.co - Amateur Radio on the Web

FCC Question ID

T1E01

When is an amateur station permitted to transmit without a control operator?

Choose A

When using automatic control, such as in the case of a repeater

Choose B

When the station licensee is away and another licensed amateur is using the station

Choose C

When the transmitting station is an auxiliary station

Choose D

Never

T1D07

What types of amateur stations can automatically retransmit the signals of other amateur stations?

Choose A

Auxiliary, beacon, or Earth stations

Choose B

Repeater, auxiliary, or space stations

Choose C

Beacon, repeater, or space stations

Choose D

Earth, repeater, or space stations

T1D02

Under which of the following circumstances may an amateur radio station make one-way transmissions?

Choose A

Under no circumstances

Choose B

When transmitting code practice, information bulletins, or transmissions necessary to provide emergency communications

Choose C

At any time, as long as no music is transmitted

Choose D

At any time, as long as the material being transmitted did not originate from a commercial broadcast station

T1A10

Which of the following describes the Radio Amateur Civil Emergency Service (RACES)?

Choose A

A radio service using amateur frequencies for emergency management or civil defense communications

Choose B

A radio service using amateur stations for emergency management or civil defense communications

Choose C

An emergency service using amateur operators certified by a civil defense organization as being enrolled in that organization

Choose D

All of these choices are correct

T1C09

What is the grace period following the expiration of an amateur license within which the license may be renewed?

Choose A

Two years

Choose B

Three years

Choose C

Five years

Choose D

Ten years

T1B02

Which amateur radio stations may make contact with an amateur radio station on the International Space Station (ISS) using 2 meter and 70 cm band frequencies?

Choose A

Only members of amateur radio clubs at NASA facilities

Choose B

Any amateur holding a Technician or higher-class license

Choose C

Only the astronaut's family members who are hams

Choose D

Contacts with the ISS are not permitted on amateur radio frequencies

T2A12

Which of the following is a guideline when choosing an operating frequency for calling CQ?

Choose A

Listen first to be sure that no one else is using the frequency

Choose B

Ask if the frequency is in use

Choose C

Make sure you are in your assigned band

Choose D

All of these choices are correct

T2B05

What might be the problem if a repeater user says your transmissions are breaking up on voice peaks?

Choose A

You have the incorrect offset

Choose B

You need to talk louder

Choose C

You are talking too loudly

Choose D

Your transmit power is too high

T2C12

What is the Amateur Radio Emergency Service (ARES)?

Choose A

Licensed amateurs who have voluntarily registered their qualifications and equipment for communications duty in the public service

Choose B

Licensed amateurs who are members of the military and who voluntarily agreed to provide message handling services in the case of an emergency

Choose C

A training program that provides licensing courses for those interested in obtaining an amateur license to use during emergencies

Choose D

A training program that certifies amateur operators for membership in the Radio Amateur Civil Emergency Service

T3A08

Which of the following is a likely cause of irregular fading of signals received by ionospheric reflection?

Choose A

Frequency shift due to Faraday rotation

Choose B

Interference from thunderstorms

Choose C

Random combining of signals arriving via different paths

Choose D

Intermodulation distortion

T3B02

What property of a radio wave is used to describe its polarization?

Choose A

The orientation of the electric field

Choose B

The orientation of the magnetic field

Choose C

The ratio of the energy in the magnetic field to the energy in the electric field

Choose D

The ratio of the velocity to the wavelength

T3C06

What mode is responsible for allowing over-the-horizon VHF and UHF communications to ranges of approximately 300 miles on a regular basis?

Choose A

Tropospheric ducting

Choose B

D layer refraction

Choose C

F2 layer refraction

Choose D

Faraday rotation

T4A10

What is the source of a high-pitched whine that varies with engine speed in a mobile transceiver’s receive audio?

Choose A

The ignition system

Choose B

The alternator

Choose C

The electric fuel pump

Choose D

Anti-lock braking system controllers

T4B11

What is the function of automatic gain control, or AGC?

Choose A

To keep received audio relatively constant

Choose B

To protect an antenna from lightning

Choose C

To eliminate RF on the station cabling

Choose D

An asymmetric goniometer control used for antenna matching

T5A13

In which type of circuit is current the same through all components?

Choose A

Series

Choose B

Parallel

Choose C

Resonant

Choose D

Branch

T5B11

What is the amount of change, measured in decibels (dB), of a power increase from 20 watts to 200 watts?

Choose A

10 dB

Choose B

12 dB

Choose C

18 dB

Choose D

28 dB

T5C06

What does the abbreviation “RF” refer to?

Choose A

Radio frequency signals of all types

Choose B

The resonant frequency of a tuned circuit

Choose C

The real frequency transmitted as opposed to the apparent frequency

Choose D

Reflective force in antenna transmission lines

T5D05

What is the resistance in a circuit for which the applied voltage is 12 volts and the current flow is 1.5 amperes?

Choose A

18 ohms

Choose B

0.125 ohms

Choose C

8 ohms

Choose D

13.5 ohms

T6A05

What type of electrical component consists of two or more conductive surfaces separated by an insulator?

Choose A

Resistor

Choose B

Potentiometer

Choose C

Oscillator

Choose D

Capacitor

T6B04

Which of the following components can consist of three layers of semiconductor material?

Choose A

Alternator

Choose B

Transistor

Choose C

Triode

Choose D

Pentagrid converter

T6C12

What do the symbols on an electrical schematic represent?

Choose A

Electrical components

Choose B

Logic states

Choose C

Digital codes

Choose D

Traffic nodes

T6D07

Which of the following is commonly used as a visual indicator?

Choose A

LED

Choose B

FET

Choose C

Zener diode

Choose D

Bipolar transistor

T7A07

What is meant by “PTT”?

Choose A

Pre-transmission tuning to reduce transmitter harmonic emission

Choose B

Precise tone transmissions used to limit repeater access to only certain signals

Choose C

A primary transformer tuner use to match antennas

Choose D

The push-to-talk function that switches between receive and transmit

T7B11

What is a symptom of RF feedback in a transmitter or transceiver?

Choose A

Excessive SWR at the antenna connection

Choose B

The transmitter will not stay on the desired frequency

Choose C

Reports of garbled, distorted, or unintelligible voice transmissions

Choose D

Frequent blowing of power supply fuses

T7C11

What is a disadvantage of air core coaxial cable when compared to foam or solid dielectric types?

Choose A

It has more loss per foot

Choose B

It cannot be used for VHF or UHF antennas

Choose C

It requires special techniques to prevent water absorption

Choose D

It cannot be used at below freezing temperatures

T7D07

Which of the following measurements are commonly made using a multimeter?

Choose A

SWR and RF power

Choose B

Signal strength and noise

Choose C

Impedance and reactance

Choose D

Voltage and resistance

T8A09

What is the approximate bandwidth of a VHF repeater FM phone signal?

Choose A

Less than 500 Hz

Choose B

About 150 kHz

Choose C

Between 10 and 15 kHz

Choose D

Between 50 and 125 kHz

T8B09

What causes spin fading of satellite signals?

Choose A

Circular polarized noise interference radiated from the sun

Choose B

Rotation of the satellite and its antennas

Choose C

Doppler shift of the received signal

Choose D

Interfering signals within the satellite uplink band

T8C11

What name is given to an amateur radio station that is used to connect other amateur stations to the internet?

Choose A

A gateway

Choose B

A repeater

Choose C

A digipeater

Choose D

A beacon

T8D13

What is FT8?

Choose A

A wideband FM voice mode

Choose B

A digital mode capable of operating in low signal-to-noise conditions that transmits on 15-second intervals

Choose C

An eight channel multiplex mode for FM repeaters

Choose D

A digital slow scan TV mode with forward error correction and automatic color compensation

T9A10

In which direction does a half-wave dipole antenna radiate the strongest signal?

Choose A

Equally in all directions

Choose B

Off the ends of the antenna

Choose C

Broadside to the antenna

Choose D

In the direction of the feed line

T9B09

What can cause erratic changes in SWR readings?

Choose A

The transmitter is being modulated

Choose B

A loose connection in an antenna or a feed line

Choose C

The transmitter is being over-modulated

Choose D

Interference from other stations is distorting your signal

T0A05

Why is it unwise to install a 20-ampere fuse in the place of a 5-ampere fuse?

Choose A

The larger fuse would be likely to blow because it is rated for higher current

Choose B

The power supply ripple would greatly increase

Choose C

Excessive current could cause a fire

Choose D

All of these choices are correct

T0B11

Which of the following establishes grounding requirements for an amateur radio tower or antenna?

Choose A

FCC Part 97 Rules

Choose B

Local electrical codes

Choose C

FAA tower lighting regulations

Choose D

UL recommended practices

T0C06

Which of the following is an acceptable method to determine that your station complies with FCC RF exposure regulations?

Choose A

By calculation based on FCC OET Bulletin 65

Choose B

By calculation based on computer modeling

Choose C

By measurement of field strength using calibrated equipment

Choose D

All of these choices are correct