T0A05: Why is it unwise to install a 20-ampere fuse in the place of a 5-ampere fuse?

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

The power supply ripple would greatly increase

All of these choices are correct

T0B10: Which of the following is true concerning grounding conductors used for lightning protection?

Only non-insulated wire must be used

Wires must be carefully routed with precise right-angle bends

Common grounds must be avoided

T0C05: Why do exposure limits vary with frequency?

Lower frequency RF fields have more energy than higher frequency fields

Lower frequency RF fields do not penetrate the human body

Higher frequency RF fields are transient in nature

T1A04: Which of the following meets the FCC definition of harmful interference?

Radio transmissions that annoy users of a repeater

Unwanted radio transmissions that cause costly harm to radio station apparatus

Static from lightning storms

T1B03: Which frequency is within the 6 meter band?

49.00 MHz

28.50 MHz

222.15 MHz

T1C05: What must you do if you are operating on the 23 cm band and learn that you are interfering with a radiolocation station outside the United States?

Nothing, because this band is allocated exclusively to the amateur service

Establish contact with the radiolocation station and ask them to change frequency

Change to CW mode, because this would not likely cause interference

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

T1E04: What determines the transmitting privileges of an amateur station?

The frequency authorized by the frequency coordinator

The class of operator license held by the station licensee

The highest class of operator license held by anyone on the premises

T1F10: Who is accountable should a repeater inadvertently retransmit communications that violate the FCC rules?

The control operator of the repeater

The owner of the repeater

Both the originating station and the repeater owner

T2A08: What is the meaning of the procedural signal "CQ"?

Call on the quarter hour

A new antenna is being tested (no station should answer)

Only the called station should transmit

T2B07: What should you do if you receive a report that your station's transmissions are causing splatter or interference on nearby frequencies?

Increase transmit power

Change mode of transmission

Report the interference to the equipment manufacturer

T2C04: What do RACES and ARES have in common?

They represent the two largest ham clubs in the United States

Both organizations broadcast road and weather traffic information

Neither may handle emergency traffic supporting public service agencies

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

The stratosphere

The troposphere

The magnetosphere

T3B11: What is the approximate velocity of a radio wave as it travels through free space?

3000 kilometers per second

300,000 miles per hour

186,000 miles per hour

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

T4A10: What is the source of a high-pitched whine that varies with engine speed in a mobile transceiver's receive audio?

The ignition system

The electric fuel pump

Anti-lock braking system controllers

T4B07: What does the term "RIT" mean?

Receiver Input Tone

Rectifier Inverter Test

Remote Input Transmitter

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

Copper

Aluminum

Mercury

T5B07: If a frequency readout calibrated in megahertz shows a reading of 3.525 MHz, what would it show if it were calibrated in kilohertz?

0.003525 kHz

35.25 kHz

3,525,000 kHz

T5C04: What is the basic unit of inductance?

The coulomb

The farad

The ohm

T5D11: What is the voltage across a 10-ohm resistor if a current of 1 ampere flows through it?

1 volt

11 volts

9 volts

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

Resistor

Capacitor

Diode

T6B09: What are the names of the two electrodes of a diode?

Plus and minus

Source and drain

Gate and base

T6C08: What is component 9 in figure T2?

Variable capacitor

Variable inductor

Variable transformer

T6D05: What type of circuit controls the amount of voltage from a power supply?

Oscillator

Filter

Phase inverter

T7A04: What circuit is pictured in Figure T7, if block 1 is a frequency discriminator?

A double-conversion receiver

A regenerative receiver

A superheterodyne receiver

T7B04: What is the most likely cause of interference to a non-cordless telephone from a nearby transmitter?

Harmonics from the transmitter

Poor station grounding

Improper transmitter adjustment

T7C04: What reading on an SWR meter indicates a perfect impedance match between the antenna and the feedline?

2 to 1

1 to 3

10 to 1

T7D06: Which of the following might damage a multimeter?

Measuring a voltage too small for the chosen scale

Leaving the meter in the milliamps position overnight

Not allowing it to warm up properly

T8A11: What is the approximate maximum bandwidth required to transmit a CW signal?

2.4 kHz

1000 Hz

15 kHz

T8B03: Which of the following can be done using an amateur radio satellite?

Get global positioning information

Make telephone calls

All of these choices are correct

T8C06: For what purpose is a temporary "1 by 1" format (letter-number-letter) call sign assigned?

To designate an experimental station

To honor a deceased relative who was a radio amateur

All of these choices are correct

T8D09: What code is used when sending CW in the amateur bands?

Baudot

Hamming

Gray

T9A07: What is a good reason not to use a "rubber duck" antenna inside your car?

It might cause your radio to overheat

The SWR might decrease, decreasing the signal strength

All of these choices are correct

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