E0A09: Which insulating material commonly used as a thermal conductor for some types of electronic devices is extremely toxic if broken or crushed and the particles are accidentally inhaled?

Mica

Zinc oxide

Uranium Hexaflouride

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

E1B12: What is the highest modulation index permitted at the highest modulation frequency for angle modulation?

.5

2.0

3.0

E1C04: When may an automatically controlled station retransmit third party communications?

Never

When specifically agreed upon by the sending and receiving stations

When approved by the National Telecommunication and Information Administration

E1D07: Which amateur service HF bands have frequencies authorized to space stations?

Only 40m, 20m, 17m, 15m and 10m bands

40m, 30m, 20m, 15m, 12m and 10m bands

All HF bands

E1E11: What must the VE team do if an examinee scores a passing grade on all examination elements needed for an upgrade or new license?

Photocopy all examination documents and forward them to the FCC for processing

Issue the examinee the new or upgrade license

All these choices are correct

E1F07: When may an amateur station send a message to a business?

When the total money involved does not exceed $25

When the control operator is employed by the FCC or another government agency

When transmitting international third-party communications

E2A07: Which of the following types of signals can be relayed through a linear transponder?

FM and CW

SSB and SSTV

PSK and Packet

E2B06: What is vestigial sideband modulation?

A type of modulation in which one sideband is inverted

Narrow-band FM transmission achieved by filtering one sideband from the audio before frequency modulating the carrier

Spread spectrum modulation achieved by applying FM modulation following single sideband amplitude modulation

E2C04: On which of the following frequencies is an amateur radio contest contact generally discouraged?

3.525 MHz

14.020 MHz

28.330 MHz

E2D01: Which of the following digital modes is especially designed for use for meteor scatter signals?

WSPR

Hellschreiber

APRS

E2E02: What do the letters FEC mean as they relate to digital operation?

First Error Correction

Fatal Error Correction

Final Error Correction

E3A07: What frequency range would you normally tune to find EME signals in the 70 cm band?

430.000 - 430.150 MHz

430.100 - 431.100 MHz

431.100 - 431.200 MHz

E3B04: What type of propagation is probably occurring if an HF beam antenna must be pointed in a direction 180 degrees away from a station to receive the strongest signals?

Sporadic-E

Transequatorial

Auroral

E3C01: Which of the following effects does Aurora activity have on radio communications?

SSB signals are raspy

Signals propagating through the Aurora are fluttery

CW signals appear to be modulated by white noise

E4A07: Which of the following is an advantage of using an antenna analyzer compared to an SWR bridge to measure antenna SWR?

Antenna analyzers automatically tune your antenna for resonance

Antenna analyzers display a time-varying representation of the modulation envelope

All of these choices are correct

E4B06: How much power is being absorbed by the load when a directional power meter connected between a transmitter and a terminating load reads 100 watts forward power and 25 watts reflected power?

100 watts

125 watts

25 watts

E4C10: Which of the following is a desirable amount of selectivity for an amateur RTTY HF receiver?

100 Hz

6000 Hz

2400 Hz

E4D11: Why are third-order intermodulation products created within a receiver of particular interest compared to other products?

The third-order intercept is much higher than other orders

Third-order products are an indication of poor image rejection

Third-order intermodulation produces three products for every input signal within the band of interest

E4E02: Which of the following types of receiver noise can often be reduced with a DSP noise filter?

Broadband white noise

Ignition noise

Power line noise

E5A14: What is the resonant frequency of a series RLC circuit if R is 22 ohms, L is 50 microhenrys and C is 40 picofarads?

44.72 MHz

22.36 MHz

1.78 MHz

E5B03: The capacitor in an RC circuit is discharged to what percentage of the starting voltage after two time constants?

86.5%

63.2%

36.8%

E5C15: In polar coordinates, what is the impedance of a circuit of 100 -j100 ohms impedance?

100 ohms at an angle of 45 degrees

100 ohms at an angle of -45 degrees

141 ohms at an angle of 45 degrees

E5D03: What device is used to store electrical energy in an electrostatic field?

A battery

A transformer

An inductor

E6A06: What is the beta of a bipolar junction transistor?

The frequency at which the current gain is reduced to 1

The breakdown voltage of the base to collector junction

The switching speed of the transistor

E6B12: What is one common use for PIN diodes?

As a constant current source

As a constant voltage source

As a high voltage rectifier

E6C08: In Figure E6-5, what is the schematic symbol for a NAND gate?

1

3

4

E6D05: What is a liquid-crystal display (LCD)?

A modern replacement for a quartz crystal oscillator which displays its fundamental frequency

A frequency-determining unit for a transmitter or receiver

A display that uses a glowing liquid to remain brightly lit in dim light

E6E09: Which of the following must be done to insure that a crystal oscillator provides the frequency specified by the crystal manufacturer?

Provide the crystal with a specified parallel inductance

Bias the crystal at a specified voltage

Bias the crystal at a specified current

E6F07: What is a solid state relay?

A relay using transistors to drive the relay coil

A mechanical relay that latches in the on or off state each time it is pulsed

A passive delay line

E7A03: Which of the following can divide the frequency of a pulse train by 2?

An XOR gate

An OR gate

A multiplexer

E7B18: Which of the following is a characteristic of a grounded-grid amplifier?

High power gain

High filament voltage

Low bandwidth

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

E7D14: What is one purpose of a "bleeder" resistor in a conventional (unregulated) power supply?

To cut down on waste heat generated by the power supply

To balance the low-voltage filament windings

To boost the amount of output current

E7E09: What occurs when an excessive amount of signal energy reaches a mixer circuit?

Mixer blanking occurs

Automatic limiting occurs

A beat frequency is generated

E7F11: What is an advantage of a period-measuring frequency counter over a direct-count type?

It can run on battery power for remote measurements

It does not require an expensive high-precision time base

It can directly measure the modulation index of an FM transmitter

E7G01: What primarily determines the gain and frequency characteristics of an op-amp RC active filter?

The values of capacitors and resistors built into the op-amp

The input voltage and frequency of the op-amp's DC power supply

The output voltage and smoothness of the op-amp's DC power supply

E7H10: What information is contained in the lookup table of a direct digital frequency synthesizer?

The phase relationship between a reference oscillator and the output waveform

The phase relationship between a voltage-controlled oscillator and the output waveform

The synthesizer frequency limits and frequency values stored in the radio memories

E8A05: What would be the most accurate way of measuring the RMS voltage of a complex waveform?

By using a grid dip meter

By measuring the voltage with a D'Arsonval meter

By using an absorption wavemeter

E8B01: What is the term for the ratio between the frequency deviation of an RF carrier wave, and the modulating frequency of its corresponding FM-phone signal?

FM compressibility

Quieting index

Percentage of modulation

E8C01: Which one of the following digital codes consists of elements having unequal length?

ASCII

AX.25

Baudot

E8D13: Which of the following is a typical value for the peak voltage at a standard U.S. household electrical outlet?

240 volts

120 volts

340 volts

E9A08: What is meant by antenna gain?

The ratio of the signal in the forward direction to that in the opposite direction

The ratio of the amount of power radiated by an antenna compared to the transmitter output power

The final amplifier gain minus the transmission-line losses, including any phasing lines present

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

E9C09: What is the front-to-back ratio of the radiation pattern shown in Figure E9-2?

15 dB

3 dB

24 dB

E9D09: What is an advantage of using top loading in a shortened HF vertical antenna?

Lower Q

Greater structural strength

Higher losses

E9E02: What is the name of an antenna matching system that matches an unbalanced feed line to an antenna by feeding the driven element both at the center of the element and at a fraction of a wavelength to one side of center?

The delta match

The epsilon match

The stub match

E9F05: What is the approximate physical length of a solid polyethylene dielectric coaxial transmission line that is electrically one-quarter wavelength long at 14.1 MHz?

20 meters

2.3 meters

0.2 meters

E9G03: Which of the following is often determined using a Smith chart?

Beam headings and radiation patterns

Satellite azimuth and elevation bearings

Trigonometric functions

E9H12: What is an advantage of using a shielded loop antenna for direction finding?

It automatically cancels ignition noise pickup in mobile installations

It eliminates tracking errors caused by strong out-of-band signals

It allows stations to communicate without giving away their position