T0A12: What kind of hazard might exist in a power supply when it is turned off and disconnected?

Static electricity could damage the grounding system

Circulating currents inside the transformer might cause damage

The fuse might blow if you remove the cover

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

T0C03: What is the maximum power level that an amateur radio station may use at VHF frequencies before an RF exposure evaluation is required?

1500 watts PEP transmitter output

1 watt forward power

50 watts PEP reflected power

T1A07: What is the FCC Part 97 definition of telemetry?

An information bulletin issued by the FCC

A one-way transmission to initiate, modify or terminate functions of a device at a distance

An information bulletin from a VEC

T1B01: What is the ITU?

An agency of the United States Department of Telecommunications Management

An independent frequency coordination agency

A department of the FCC

T1C03: What types of international communications are permitted by an FCC-licensed amateur station?

Communications incidental to conducting business or remarks of a personal nature

Only communications incidental to contest exchanges, all other communications are prohibited

Any communications that would be permitted on an international broadcast station

T1D11: Which of the following types of communications are permitted in the Amateur Radio Service?

Retransmission of entertainment programming from a commercial radio or TV station

Retransmission of entertainment material from a public radio or TV station

Communications on a regular basis that could reasonably be furnished alternatively through other radio services

T1E06: Under which of the following types of control is it permissible for the control operator to be at a location other than the control point?

Local control

Remote control

Indirect control

T1F05: What method of call sign identification is required for a station transmitting phone signals?

Send the call sign followed by the indicator RPT

Send the call sign followed by the indicator R

Send the call sign using only phone emission

T2A06: What must an amateur operator do when making on-air transmissions to test equipment or antennas?

Make test transmissions only after 10:00 p.m. local time

Notify the FCC of the test transmission

State the purpose of the test during the test procedure

T2B10: What is the "Q" signal used to indicate that you are receiving interference from other stations?

QRN

QTH

QSB

T2C08: What is usually considered to be the most important job of an amateur operator when handling emergency traffic messages?

Estimating the number of people affected by the disaster

Communicating messages to the news media for broadcast outside the disaster area

Broadcasting emergency information to the general public

T3A11: Which part of the atmosphere enables the propagation of radio signals around the world?

The stratosphere

The troposphere

The magnetosphere

T3B05: How does the wavelength of a radio wave relate to its frequency?

The wavelength gets longer as the frequency increases

There is no relationship between wavelength and frequency

The wavelength depends on the bandwidth of the signal

T3C09: What is generally the best time for long-distance 10 meter band propagation?

During nighttime hours

When there are coronal mass ejections

Whenever the solar flux is low

T4A04: Where must a filter be installed to reduce harmonic emissions?

Between the receiver and the transmitter

At the station power supply

At the microphone

T4B08: What is the advantage of having multiple receive bandwidth choices on a multimode transceiver?

Permits monitoring several modes at once

Increases the number of frequencies that can be stored in memory

Increases the amount of offset between receive and transmit frequencies

T5A08: Which of the following is a good electrical insulator?

Copper

Aluminum

Mercury

T5B03: How many volts are equal to one kilovolt?

One one-thousandth of a volt

One hundred volts

One million volts

T5C07: What is a usual name for electromagnetic waves that travel through space?

Gravity waves

Sound waves

Pressure waves

T5D01: What formula is used to calculate current in a circuit?

Current (I) equals voltage (E) multiplied by resistance (R)

Current (I) equals voltage (E) added to resistance (R)

Current (I) equals voltage (E) minus resistance (R)

T6A06: What type of electrical component stores energy in a magnetic field?

Resistor

Capacitor

Diode

T6B10: Which semiconductor component has an emitter electrode?

Field effect transistor

Silicon diode

Bridge rectifier

T6C01: What is the name for standardized representations of components in an electrical wiring diagram?

Electrical depictions

Grey sketch

Component callouts

T6D11: Which of the following is a common use of coaxial cable?

Carry dc power from a vehicle battery to a mobile radio

Secure masts, tubing, and other cylindrical objects on towers

Connect data signals from a TNC to a computer

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

T7C09: Which of the following is the most common cause for failure of coaxial cables?

Gamma rays

The velocity factor exceeds 1.0

Overloading

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

T8A02: What type of modulation is most commonly used for VHF packet radio transmissions?

SSB

AM

Spread Spectrum

T8B07: With regard to satellite communications, what is Doppler shift?

A change in the satellite orbit

A mode where the satellite receives signals on one band and transmits on another

A special digital communications mode for some satellites

T8C07: What is the maximum power allowed when transmitting telecommand signals to radio controlled models?

500 milliwatts

25 watts

1500 watts

T8D02: What does the term APRS mean?

Associated Public Radio Station

Auto Planning Radio Set-up

Advanced Polar Radio System

T9A11: What is meant by the gain of an antenna?

The additional power that is added to the transmitter power

The additional power that is lost in the antenna when transmitting on a higher frequency

The increase in impedance on receive or transmit compared to a reference antenna

T9B02: What is the impedance of the most commonly used coaxial cable in typical amateur radio installations?

8 ohms

600 ohms

12 ohms