T0A04: What is the purpose of a fuse in an electrical circuit?

To prevent power supply ripple from damaging a circuit

To limit current to prevent shocks

All of these choices are correct

T0B02: What is a good precaution to observe before climbing an antenna tower?

Make sure that you wear a grounded wrist strap

Remove all tower grounding connections

All of the these choices are correct

T0C01: What type of radiation are VHF and UHF radio signals?

Gamma radiation

Ionizing radiation

Alpha radiation

T1A01: For whom is the Amateur Radio Service intended?

Persons who have messages to broadcast to the public

Persons who need communications for the activities of their immediate family members, relatives and friends

Persons who need two-way communications for personal reasons

T1B10: Which of the bands available to Technician Class operators have mode-restricted sub-bands?

The 6 meter, 2 meter, and 70 cm bands

The 2 meter and 13 cm bands

The 2 meter and 70 cm bands

T1C06: From which of the following may an FCC-licensed amateur station transmit, in addition to places where the FCC regulates communications?

From within any country that belongs to the International Telecommunications Union

From within any country that is a member of the United Nations

From anywhere within in ITU Regions 2 and 3

T1D10: What is the meaning of the term broadcasting in the FCC rules for the amateur services?

Two-way transmissions by amateur stations

Transmission of music

Transmission of messages directed only to amateur operators

T1E10: What type of control is used when the control operator is not at the station location but can indirectly manipulate the operating adjustments of a station?

Local

Automatic

Unattended

T1F02: When using tactical identifiers, how often must your station transmit the station's FCC-assigned call sign?

Never, the tactical call is sufficient

Once during every hour

At the end of every communication

T2A03: What is a common repeater frequency offset in the 70 cm band?

Plus or minus 600 kHz

Minus 600 kHz

Plus 600 kHz

T2B05: What determines the amount of deviation of an FM signal?

Both the frequency and amplitude of the modulating signal

The frequency of the modulating signal

The relative phase of the modulating signal and the carrier

T2C06: Which of the following is common practice during net operations to get the immediate attention of the net control station when reporting an emergency?

Repeat the words SOS three times followed by the call sign of the reporting station

Press the push-to-talk button three times

Play a pre-recorded emergency alert tone followed by your call sign

T3A06: What term is commonly used to describe the rapid fluttering sound sometimes heard from mobile stations that are moving while transmitting?

Flip-flopping

Frequency shifting

Pulsing

T3B04: How fast does a radio wave travel through free space?

At the speed of sound

Its speed is inversely proportional to its wavelength

Its speed increases as the frequency increases

T3C04: Which of the following propagation types is most commonly associated with occasional strong over-the-horizon signals on the 10, 6, and 2 meter bands?

Backscatter

D layer absorption

Gray-line propagation

T4A06: Which of the following would be connected between a transceiver and computer in a packet radio station?

Transmatch

Mixer

Antenna

T4B09: Which of the following is an appropriate receive filter to select in order to minimize noise and interference for SSB reception?

500 Hz

1000 Hz

5000 Hz

T5A10: Which term describes the rate at which electrical energy is used?

Resistance

Current

Voltage

T5B02: What is another way to specify a radio signal frequency of 1,500,000 hertz?

1500 MHz

15 GHz

150 kHz

T5C11: How many amperes are flowing in a circuit when the applied voltage is 12 volts DC and the load is 120 watts?

0.1 amperes

12 amperes

132 amperes

T5D06: What is the resistance of a circuit that draws 4 amperes from a 12-volt source?

16 ohms

48 ohms

8 Ohms

T6A07: What electrical component is usually composed of a coil of wire?

Switch

Capacitor

Diode

T6B10: Which semiconductor component has an emitter electrode?

Field effect transistor

Silicon diode

Bridge rectifier

T6C02: What is component 1 in figure T1?

Transistor

Battery

Connector

T6D03: What type of switch is represented by item 3 in figure T2?

Single-pole double-throw

Double-pole single-throw

Double-pole double-throw

T7A07: If figure T5 represents a transceiver in which block 1 is the transmitter portion and block 3 is the receiver portion, what is the function of block 2?

A balanced modulator

A power amplifier

A high-pass filter

T7B05: What is a logical first step when attempting to cure a radio frequency interference problem in a nearby telephone?

Install a low-pass filter at the transmitter

Install a high-pass filter at the transmitter

Improve station grounding

T7C11: What is a disadvantage of "air core" coaxial cable when compared to foam or solid dielectric types?

It has more loss per foot

It cannot be used for VHF or UHF antennas

It cannot be used at below freezing temperatures

T7D10: What is probably happening when an ohmmeter, connected across a circuit, initially indicates a low resistance and then shows increasing resistance with time?

The ohmmeter is defective

The circuit contains a large inductor

The circuit is a relaxation oscillator

T8A08: What is the approximate bandwidth of a single sideband voice signal?

1 kHz

6 kHz

15 kHz

T8B11: What is a commonly used method of sending signals to and from a digital satellite?

USB AFSK

PSK31

WSJT

T8C10: How do you select a specific IRLP node when using a portable transceiver?

Choose a specific CTCSS tone

Choose the correct DSC tone

Access the repeater autopatch

T8D04: What type of transmission is indicated by the term NTSC?

A Normal Transmission mode in Static Circuit

A special mode for earth satellite uplink

A frame compression scheme for TV signals

T9A06: What type of antennas are the quad, Yagi, and dish?

Non-resonant antennas

Loop antennas

Isotropic antennas

T9B07: Which of the following is true of PL-259 type coax connectors?

They are good for UHF frequencies

They are water tight

They are a bayonet type connector