E0A11: Which of the following injuries can result from using high-power UHF or microwave transmitters?

Hearing loss caused by high voltage corona discharge

Blood clotting from the intense magnetic field

Ingestion of ozone gas from the cooling system

E1A01: When using a transceiver that displays the carrier frequency of phone signals, which of the following displayed frequencies represents the highest frequency at which a properly adjusted USB emission will be totally within the band?

The exact upper band edge

300 Hz below the upper band edge

1 kHz below the upper band edge

E1B07: Where must the carrier frequency of a CW signal be set to comply with FCC rules for 60 meter operation?

At the lowest frequency of the channel

At the highest frequency of the channel

On any frequency where the signal's sidebands are within the channel

E1C05: When may an automatically controlled station originate third party communications?

Only when transmitting an RTTY or data emissions

When specifically agreed upon by the sending and receiving stations

When approved by the National Telecommunication and Information Administration

E1D03: What is a telecommand station in the amateur satellite service?

An amateur station located on the Earth's surface for communications with other Earth stations by means of Earth satellites

An amateur station located more than 50 km above the Earth's surface

An amateur station that transmits telemetry consisting of measurements of upper atmosphere data from space

E1E06: Who is responsible for the proper conduct and necessary supervision during an amateur operator license examination session?

The VEC coordinating the session

The FCC

The VE session manager

E1F08: Which of the following types of amateur station communications are prohibited?

Communications that have a political content, except as allowed by the Fairness Doctrine

Communications that have a religious content

Communications in a language other than English

E2A01: What is the direction of an ascending pass for an amateur satellite?

From west to east

From east to west

From north to south

E2B05: Which of the following is an advantage of using vestigial sideband for standard fast- scan TV transmissions?

The vestigial sideband carries the audio information

The vestigial sideband contains chroma information

Vestigial sideband provides high frequency emphasis to sharpen the picture

E2C05: What is the function of a DX QSL Manager?

To allocate frequencies for DXpeditions

To run a net to allow many stations to contact a rare DX station

To relay calls to and from a DX station

E2D09: Under clear communications conditions, which of these digital communications modes has the fastest data throughput?

AMTOR

170-Hz shift, 45 baud RTTY

PSK31

E2E01: Which type of modulation is common for data emissions below 30 MHz?

DTMF tones modulating an FM signal

Pulse modulation

Spread spectrum

E3A04: What type of receiving system is desirable for EME communications?

Equipment with very wide bandwidth

Equipment with very low dynamic range

Equipment with very low gain

E3B11: Which of the following describes gray-line propagation?

Backscatter contacts on the 10 meter band

Over the horizon propagation on the 6 and 2 meter bands

Tropospheric propagation on the 2 meter and 70 centimeter bands

E3C12: How does the maximum distance of ground-wave propagation change when the signal frequency is increased?

It stays the same

It increases

It peaks at roughly 14 MHz

E4A06: Which of the following could be determined with a spectrum analyzer?

The degree of isolation between the input and output ports of a 2 meter duplexer

Whether a crystal is operating on its fundamental or overtone frequency

The spectral output of a transmitter

E4B13: How is the compensation of an oscilloscope probe typically adjusted?

A high frequency sine wave is displayed and the probe is adjusted for maximum amplitude

A frequency standard is displayed and the probe is adjusted until the deflection time is accurate

A DC voltage standard is displayed and the probe is adjusted until the displayed voltage is accurate

E4C11: Which of the following is a desirable amount of selectivity for an amateur SSB phone receiver?

1 kHz

4.2 kHz

4.8 kHz

E4D02: Which of the following describes two problems caused by poor dynamic range in a communications receiver?

Oscillator instability requiring frequent retuning and loss of ability to recover the opposite sideband

Cross-modulation of the desired signal and insufficient audio power to operate the speaker

Oscillator instability and severe audio distortion of all but the strongest received signals

E4E11: Which of the following is the most likely cause if you are hearing combinations of local AM broadcast signals within one or more of the MF or HF ham bands?

The broadcast station is transmitting an over-modulated signal

You are receiving sky wave signals from a distant station

Your station receiver IF amplifier stage is defective

E5A03: What is the magnitude of the impedance of a series RLC circuit at resonance?

High, as compared to the circuit resistance

Approximately equal to capacitive reactance

Approximately equal to inductive reactance

E5B06: How long does it take for an initial charge of 800 V DC to decrease to 294 V DC in a 450-microfarad capacitor when a 1-megohm resistor is connected across it?

4.50 seconds

9 seconds

900 seconds

E5C18: In polar coordinates, what is the impedance of a series circuit consisting of a resistance of 4 ohms, an inductive reactance of 4 ohms, and a capacitive reactance of 1 ohm?

6.4 ohms at an angle of 53 degrees

5 ohms at an angle of 45 degrees

10 ohms at an angle of -51 degrees

E5D13: How much power is consumed in a circuit consisting of a 100 ohm resistor in series with a 100 ohm inductive reactance drawing 1 ampere?

70.7 Watts

141.4 Watts

200 Watts

E6A16: What are the majority charge carriers in N-type semiconductor material?

Holes

Free protons

Free neutrons

E6B05: What characteristic of a PIN diode makes it useful as an RF switch or attenuator?

Extremely high reverse breakdown voltage

Ability to dissipate large amounts of power

Reverse bias controls its forward voltage drop

E6C06: Why do CMOS digital integrated circuits have high immunity to noise on the input signal or power supply?

Larger bypass capacitors are used in CMOS circuit design

The input switching threshold is about two times the power supply voltage

Input signals are stronger

E6D11: How many turns will be required to produce a 1-mH inductor using a ferrite toroidal core that has an inductance index (A L) value of 523 millihenrys/1000 turns?

2 turns

4 turns

229 turns

E6E04: What is the most common input and output impedance of circuits that use MMICs?

300 ohms

450 ohms

10 ohms

E6F04: What is the photovoltaic effect?

The conversion of voltage to current when exposed to light

The conversion of electrical energy to mechanical energy

The tendency of a battery to discharge when used outside

E7A14: What is a JK flip-flop?

A flip-flop utilizing low power, low temperature Joule-Kelvin devices

A flip-flop similar to a D flip-flop except that it triggers on the negative clock edge

A flip-flop originally developed in Japan and Korea which has very low power consumption

E7B21: Which of the following devices is generally best suited for UHF or microwave power amplifier applications?

Nuvistor

Silicon controlled rectifier

Triac

E7C08: What kind of digital signal processing audio filter might be used to remove unwanted noise from a received SSB signal?

A crystal-lattice filter

A Hilbert-transform filter

A phase-inverting filter

E7D05: Which of the following types of linear voltage regulator places a constant load on the unregulated voltage source?

A constant current source

A series regulator

A shunt current source

E7E01: Which of the following can be used to generate FM phone emissions?

A balanced modulator on the audio amplifier

A reactance modulator on the final amplifier

A balanced modulator on the oscillator

E7F09: What is the purpose of a frequency counter?

To generate a series of reference signals at known frequency intervals

To display all frequency components of a transmitted signal

To provide a signal source at a very accurate frequency

E7G09: What will be the output voltage of the circuit shown in Figure E7-4 if R1 is 1000 ohms, RF is 10,000 ohms, and 0.23 volts dc is applied to the input?

0.23 volts

2.3 volts

-0.23 volts

E7H08: What is a Gunn diode oscillator?

An oscillator based on the argon gas diode

A highly stable reference oscillator based on the tee-notch principle

A highly stable reference oscillator based on the hot-carrier effect

E8A08: What is the period of a wave?

The number of degrees in one cycle

The number of zero crossings in one cycle

The amplitude of the wave

E8B03: What is the modulation index of an FM-phone signal having a maximum frequency deviation of 3000 Hz either side of the carrier frequency, when the modulating frequency is 1000 Hz?

0.3

3000

1000

E8C08: What term describes a wide-bandwidth communications system in which the transmitted carrier frequency varies according to some predetermined sequence?

Amplitude compandored single sideband

AMTOR

Time-domain frequency modulation

E8D04: What is the PEP output of a transmitter that develops a peak voltage of 30 volts into a 50-ohm load?

4.5 watts

16 watts

18 watts

E9A05: Which of the following factors may affect the feed point impedance of an antenna?

Transmission-line length

Constant feed point impedance

Sunspot activity and time of day

E9B05: What usually occurs if a Yagi antenna is designed solely for maximum forward gain?

The front-to-back ratio increases

The frequency response is widened over the whole frequency band

The SWR is reduced

E9C05: What are the disadvantages of a terminated rhombic antenna for the HF bands?

The antenna has a very narrow operating bandwidth

The antenna produces a circularly polarized signal

The antenna is more sensitive to man-made static than any other type

E9D05: Where should a high-Q loading coil be placed to minimize losses in a shortened vertical antenna?

As low as possible on the vertical radiator

As close to the transmitter as possible

At a voltage node

E9E05: How must the driven element in a 3-element Yagi be tuned to use a hairpin matching system?

The driven element reactance must be inductive

The driven element resonance must be lower than the operating frequency

The driven element radiation resistance must be higher than the characteristic impedance of the transmission line

E9F03: Why is the physical length of a coaxial cable transmission line shorter than its electrical length?

Skin effect is less pronounced in the coaxial cable

The characteristic impedance is higher in a parallel feed line

The surge impedance is higher in a parallel feed line

E9G02: What type of coordinate system is used in a Smith chart?

Voltage circles and current arcs

Voltage lines and current chords

Resistance lines and reactance chords

E9H01: What is the effective radiated power relative to a dipole of a repeater station with 150 watts transmitter power output, 2-dB feed line loss, 2.2-dB duplexer loss and 7-dBd antenna gain?

1977 watts

78.7 watts

420 watts