E0A10: What material found in some electronic components such as high-voltage capacitors and transformers is considered toxic?

Polyethylene

Polytetrafluroethylene

Polymorphic silicon

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

E1C09: Which of these frequencies are available for an automatically controlled repeater operating below 30 MHz?

18.110 - 18.168 MHz

24.940 - 24.990 MHz

10.100 - 10.150 MHz

E1D04: What is an Earth station in the amateur satellite service?

An amateur station that is not able to communicate using amateur satellites

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

Any amateur station on the surface of the Earth

E1E07: What should a VE do if a candidate fails to comply with the examiner's instructions during an amateur operator license examination?

Warn the candidate that continued failure to comply will result in termination of the examination

Allow the candidate to complete the examination, but invalidate the results

Immediately terminate everyones examination and close the session

E1F01: On what frequencies are spread spectrum transmissions permitted?

Only on amateur frequencies above 50 MHz

Only on amateur frequencies above 420 MHz

Only on amateur frequencies above 144 MHz

E2A08: Why should effective radiated power to a satellite which uses a linear transponder be limited?

To prevent creating errors in the satellite telemetry

To prevent the satellite from emitting out of band signals

To avoid interfering with terrestrial QSOs

E2B02: How many horizontal lines make up a fast-scan (NTSC) television frame?

30

60

1080

E2C03: From which of the following bands is amateur radio contesting generally excluded?

6 meters

2 meters

33 cm

E2D06: Which of the following is a commonly used 2-meter APRS frequency?

144.20 MHz

145.02 MHz

146.52 MHz

E2E04: What is indicated when one of the ellipses in an FSK crossed-ellipse display suddenly disappears?

One of the signal filters has saturated

The receiver has drifted 5 kHz from the desired receive frequency

The mark and space signal have been inverted

E3A09: Which of the following frequency ranges is well suited for meteor-scatter communications?

1.8 - 1.9 MHz

10 - 14 MHz

220 - 450 MHz

E3B03: What is the best time of day for transequatorial propagation?

Morning

Noon

Late at night

E3C14: Why does the radio-path horizon distance exceed the geometric horizon?

E-region skip

D-region skip

Downward bending due to aurora refraction

E4A03: Which of the following parameters would a spectrum analyzer display on the vertical axis?

Duration

SWR

Q

E4B08: Which of the following is a characteristic of a good DC voltmeter?

High reluctance input

Low reluctance input

Low impedance input

E4C09: Which of the following choices is a good reason for selecting a high frequency for the design of the IF in a conventional HF or VHF communications receiver?

Fewer components in the receiver

Reduced drift

Improved receiver noise figure

E4D07: Which of the following describes the most significant effect of an off-frequency signal when it is causing cross-modulation interference to a desired signal?

A large increase in background noise

A reduction in apparent signal strength

The desired signal can no longer be heard

E4E04: How can conducted and radiated noise caused by an automobile alternator be suppressed?

By installing filter capacitors in series with the DC power lead and by installing a blocking capacitor in the field lead

By installing a noise suppression resistor and a blocking capacitor in both leads

By installing a high-pass filter in series with the radio's power lead and a low-pass filter in parallel with the field lead

E5A05: What is the magnitude of the current at the input of a series RLC circuit as the frequency goes through resonance?

Minimum

R/L

L/R

E5B12: What is the phase angle between the voltage across and the current through a series RLC circuit if XC is 75 ohms, R is 100 ohms, and XL is 50 ohms?

76 degrees with the voltage lagging the current

14 degrees with the voltage leading the current

76 degrees with the voltage leading the current

E5C16: In polar coordinates, what is the impedance of a circuit that has an admittance of 7.09 millisiemens at 45 degrees?

5.03 E-06 ohms at an angle of 45 degrees

19,900 ohms at an angle of -45 degrees

141 ohms at an angle of 45 degrees

E5D10: How can the true power be determined in an AC circuit where the voltage and current are out of phase?

By dividing the reactive power by the power factor

By dividing the apparent power by the power factor

By multiplying the reactive power times the power factor

E6A10: In Figure E6-2, what is the schematic symbol for an N-channel dual-gate MOSFET?

2

5

6

E6B12: What is one common use for PIN diodes?

As a constant current source

As a constant voltage source

As a high voltage rectifier

E6C13: Which of the following is an advantage of BiCMOS logic?

Its simplicity results in much less expensive devices than standard CMOS

It is totally immune to electrostatic damage

All of these choices are correct

E6D14: Which is NOT true of a charge-coupled device (CCD)?

It uses a combination of analog and digital circuitry

It can be used to make an audio delay line

It samples and stores analog signals

E6E11: Which of the following materials is likely to provide the highest frequency of operation when used in MMICs?

Silicon

Silicon nitride

Silicon dioxide

E6F05: Which of the following describes an optical shaft encoder?

A device which measures the strength a beam of light using analog to digital conversion

A digital encryption device often used to encrypt spacecraft control signals

A device for generating RTTY signals by means of a rotating light source.

E7A12: What is the name for logic which represents a logic "0" as a high voltage?

Reverse Logic

Assertive Logic

Positive Logic

E7B17: Why are third-order intermodulation distortion products of particular concern in linear power amplifiers?

Because they are relatively far in frequency from the desired signal

Because they invert the sidebands causing distortion

Because they maintain the sidebands, thus causing multiple duplicate signals

E7C07: What kind of filter would you use to attenuate an interfering carrier signal while receiving an SSB transmission?

A band-pass filter

A Pi-network filter

An all-pass filter

E7D17: What is the primary reason that a high-frequency inverter type high-voltage power supply can be both less expensive and lighter in weight than a conventional power supply?

The inverter design does not require any output filtering

It uses a diode bridge rectifier for increased output

It uses a large power-factor compensation capacitor to create "free power" from the unused portion of the AC cycle

E7E03: How does an analog phase modulator function?

By varying the tuning of a microphone preamplifier to produce PM signals

By varying the tuning of an amplifier tank circuit to produce AM signals

By varying the tuning of a microphone preamplifier to produce AM signals

E7F03: What is the function of a decade counter digital IC?

It decodes a decimal number for display on a seven-segment LED display

It produces ten output pulses for every input pulse

It adds two decimal numbers together

E7G04: Which of the following is a type of capacitor best suited for use in high-stability op-amp RC active filter circuits?

Electrolytic

Disc ceramic

Paper

E7H14: What is a phase-locked loop circuit?

An electronic servo loop consisting of a ratio detector, reactance modulator, and voltage-controlled oscillator

An electronic circuit also known as a monostable multivibrator

An electronic circuit consisting of a precision push-pull amplifier with a differential input

E8A15: What would the waveform of a stream of digital data bits look like on a conventional oscilloscope?

A series of sine waves with evenly spaced gaps

A running display of alpha-numeric characters

None of the above; this type of signal cannot be seen on a conventional oscilloscope

E8B06: What is the deviation ratio of an FM-phone signal having a maximum frequency swing of plus or minus 7.5 kHz when the maximum modulation frequency is 3.5 kHz?

0.214

0.47

47

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

E8D15: Which of the following is a typical value for the RMS voltage at a standard U.S. household electrical power outlet?

340V AC

85V AC

170V AC

E9A01: Which of the following describes an isotropic antenna?

A grounded antenna used to measure earth conductivity

A horizontally polarized antenna used to compare Yagi antennas

A spacecraft antenna used to direct signals toward the earth

E9B11: What is a disadvantage of decreasing the number of wire segments in an antenna model below the guideline of 10 segments per half-wavelength?

Ground conductivity will not be accurately modeled

The resulting design will favor radiation of harmonic energy

The antenna will become mechanically unstable

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

E9D12: What is one advantage of using a trapped antenna?

It has high directivity in the higher-frequency bands

It has high gain

It minimizes harmonic radiation

E9E03: What is the name of the matching system that uses a section of transmission line connected in parallel with the feed line at the feed point?

The gamma match

The delta match

The omega match

E9F09: What is the approximate physical length of a solid polyethylene dielectric coaxial transmission line that is electrically one-quarter wavelength long at 7.2 MHz?

10 meters

24 meters

50 meters

E9G10: What do the arcs on a Smith chart represent?

Frequency

SWR

Points with constant resistance

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