E0A06: Why are there separate electric (E) and magnetic (H) field MPE limits?

The body reacts to electromagnetic radiation from both the E and H fields

Ground reflections and scattering make the field impedance vary with location

E field and H field radiation intensity peaks can occur at different locations

E1A07: What is the only amateur band where transmission on specific channels rather than a range of frequencies is permitted?

12 meter band

17 meter band

30 meter band

E1B06: Which of the following additional rules apply if you are installing an amateur station antenna at a site at or near a public use airport?

No special rules apply if your antenna structure will be less than 300 feet in height

You must file an Environmental Impact Statement with the EPA before construction begins

You must obtain a construction permit from the airport zoning authority

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

E1D02: What is the amateur satellite service?

A radio navigation service using satellites for the purpose of self training, intercommunication and technical studies carried out by amateurs

A spacecraft launching service for amateur-built satellites

A radio communications service using stations on Earth satellites for public service broadcast

E1E05: What is the minimum passing score on amateur operator license examinations?

Minimum passing score of 70%

Minimum passing score of 80%

Minimum passing score of 77%

E1F03: Under what circumstances may a dealer sell an external RF power amplifier capable of operation below 144 MHz if it has not been granted FCC certification?

The equipment dealer assembled it from a kit

It was imported from a manufacturer in a country that does not require certification of RF power amplifiers

It was imported from a manufacturer in another country, and it was certificated by that country's government

E2A11: What type of antenna can be used to minimize the effects of spin modulation and Faraday rotation?

A linearly polarized antenna

An isotropic antenna

A log-periodic dipole array

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

30

60

1080

E2C06: During a VHF/UHF contest, in which band segment would you expect to find the highest level of activity?

At the top of each band, usually in a segment reserved for contests

In the middle of each band, usually on the national calling frequency

In the middle of the band, usually 25 kHz above the national calling frequency

E2D10: How can an APRS station be used to help support a public service communications activity?

An APRS station with an emergency medical technician can automatically transmit medical data to the nearest hospital

APRS stations with General Personnel Scanners can automatically relay the participant numbers and time as they pass the check points

All of these choices are correct

E2E12: Which type of digital communication does not support keyboard-to-keyboard operation?

RTTY

PSK31

MFSK

E3A02: What characterizes libration fading of an Earth-Moon-Earth signal?

A slow change in the pitch of the CW signal

A gradual loss of signal as the Sun rises

The returning echo is several Hertz lower in frequency than the transmitted signal

E3B06: Which of the following amateur bands most frequently provides long-path propagation?

80 meters

10 meters

6 meters

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

E4A04: Which of the following test instruments is used to display spurious signals from a radio transmitter?

A wattmeter

A logic analyzer

A time-domain reflectometer

E4B12: What is the significance of voltmeter sensitivity expressed in ohms per volt?

When used as a galvanometer, the reading in volts multiplied by the ohms/volt will determine the power drawn by the device under test

When used as an ohmmeter, the reading in ohms divided by the ohms/volt will determine the voltage applied to the circuit

When used as an ammeter, the full scale reading in amps divided by ohms/volt will determine the size of shunt needed

E4C12: What is an undesirable effect of using too wide a filter bandwidth in the IF section of a receiver?

Output-offset overshoot

Filter ringing

Thermal-noise distortion

E4D14: Which of the following is a way to reduce the likelihood of receiver desensitization?

Raise the receiver IF frequency

Increase the receiver front end gain

Switch from fast AGC to slow AGC

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

E5A09: What is the phase relationship between the current through and the voltage across a parallel resonant circuit at resonance?

The voltage leads the current by 90 degrees

The current leads the voltage by 90 degrees

The voltage and current are 180 degrees out of phase

E5B10: What is the relationship between the current through an inductor and the voltage across an inductor?

Current leads voltage by 90 degrees

Voltage and current are 180 degrees out of phase

Voltage and current are in phase

E5C10: When using rectangular coordinates to graph the impedance of a circuit, what does the vertical axis represent?

Resistive component

The sum of the reactive and resistive components

The difference between the resistive and reactive components

E5D06: In what direction is the magnetic field oriented about a conductor in relation to the direction of electron flow?

In the same direction as the current

In a direction opposite to the current

In all directions; omnidirectional

E6A08: What term indicates the frequency at which the grounded-base current gain of a transistor has decreased to 0.7 of the gain obtainable at 1 kHz?

Corner frequency

Alpha rejection frequency

Beta cutoff frequency

E6B13: What type of bias is required for an LED to emit light?

Reverse bias

Zero bias

Inductive bias

E6C03: Which of the following describes tri-state logic?

Logic devices that utilize ternary math

Low power logic devices designed to operate at 3 volts

Proprietary logic devices manufactured by Tri-State Devices

E6D15: What is the principle advantage of liquid-crystal display (LCD) devices over other types of display devices?

They can display changes instantly

They are visible in all light conditions

They can be easily interchanged with other display devices

E6E02: Which of the following factors has the greatest effect in helping determine the bandwidth and response shape of a crystal ladder filter?

The DC voltage applied to the quartz crystal

The gain of the RF stage preceding the filter

The amplitude of the signals passing through the filter

E6F01: What is photoconductivity?

The conversion of photon energy to electromotive energy

The conversion of electromotive energy to photon energy

The decreased conductivity of an illuminated semiconductor

E7A09: D. It produces a logic "1" at its output if any single input is a logic "1"?

It produces a logic "0" at its output only if all inputs are logic "0"

It produces a logic "1" at its output only if all inputs are logic "1"

E7B03: Which of the following forms the output of a class D amplifier circuit?

A high-pass filter to compensate for low gain at low frequencies

A matched load resistor to prevent damage by switching transients

A temperature-compensated load resistor to improve linearity

E7C11: Which of the following is the common name for a filter network which is equivalent to two L networks connected back-to-back with the inductors in series and the capacitors in shunt at the input and output?

Pi-L

Cascode

Omega

E7D06: What is the purpose of Q1 in the circuit shown in Figure E7-3?

It provides negative feedback to improve regulation

It provides a constant load for the voltage source

It provides D1 with current

E7E07: What is meant by the term baseband in radio communications?

The lowest frequency band that the transmitter or receiver covers

The unmodulated bandwidth of the transmitted signal

The basic oscillator frequency in an FM transmitter that is multiplied to increase the deviation and carrier frequency

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

E7G05: How can unwanted ringing and audio instability be prevented in a multi-section op-amp RC audio filter circuit?

Restrict gain, but increase Q

Restrict Q, but increase gain

Increase both gain and Q

E7H15: Which of these functions can be performed by a phase-locked loop?

Wide-band AF and RF power amplification

Comparison of two digital input signals, digital pulse counter

Photovoltaic conversion, optical coupling

E8A02: What type of wave has a rise time significantly faster than its fall time (or vice versa)?

A cosine wave

A square wave

A sine wave

E8B09: What is meant by deviation ratio?

The ratio of the audio modulating frequency to the center carrier frequency

The ratio of the carrier center frequency to the audio modulating frequency

The ratio of the highest audio modulating frequency to the average audio modulating frequency

E8C07: What is the necessary bandwidth of a 4800-Hz frequency shift, 9600-baud ASCII FM transmission?

9.6 kHz

4.8 kHz

5.76 kHz

E8D01: Which of the following is the easiest voltage amplitude parameter to measure when viewing a pure sine wave signal on an analog oscilloscope?

RMS voltage

Average voltage

DC voltage

E9A10: How is antenna efficiency calculated?

(radiation resistance / transmission resistance) x 100%

(total resistance / radiation resistance) x 100%

(effective radiated power / transmitter output) x 100%

E9B07: How does the total amount of radiation emitted by a directional gain antenna compare with the total amount of radiation emitted from an isotropic antenna, assuming each is driven by the same amount of power?

The total amount of radiation from the directional antenna is increased by the gain of the antenna

The total amount of radiation from the directional antenna is stronger by its front to back ratio

The radiation from the isotropic antenna is 2.15 dB stronger than that from the directional antenna

E9C13: What is the main effect of placing a vertical antenna over an imperfect ground?

It causes increased SWR

It changes the impedance angle of the matching network

It reduces losses in the radiating portion of the antenna

E9D01: How does the gain of an ideal parabolic dish antenna change when the operating frequency is doubled?

Gain does not change

Gain is multiplied by 0.707

Gain increases by 3 dB

E9E10: Which of these choices is an effective way to match an antenna with a 100-ohm feed point impedance to a 50-ohm coaxial cable feed line?

Connect a 1/4-wavelength open stub of 300-ohm twin-lead in parallel with the coaxial feed line where it connects to the antenna

Insert a 1/2 wavelength piece of 300-ohm twin-lead in series between the antenna terminals and the 50-ohm feed cable

Connect 1/2 wavelength shorted stub of 75-ohm cable in parallel with the 50-ohm cable where it attaches to the antenna

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

E9G11: How are the wavelength scales on a Smith chart calibrated?

In fractions of transmission line electrical frequency

In fractions of antenna electrical wavelength

In fractions of antenna electrical frequency

E9H05: What is the main drawback of a wire-loop antenna for direction finding?

It is non-rotatable

It receives equally well in all directions

It is practical for use only on VHF bands