E0A07: How may dangerous levels of carbon monoxide from an emergency generator be detected?

By the odor

Any ordinary smoke detector can be used

By the yellowish appearance of the gas

E1A02: When using a transceiver that displays the carrier frequency of phone signals, which of the following displayed frequencies represents the lowest frequency at which a properly adjusted LSB emission will be totally within the band?

The exact lower band edge

300 Hz above the lower band edge

1 kHz above the lower band edge

E1B04: What must be done before placing an amateur station within an officially designated wilderness area or wildlife preserve, or an area listed in the National Register of Historical Places?

A proposal must be submitted to the National Park Service

A letter of intent must be filed with the National Audubon Society

A form FSD-15 must be submitted to the Department of the Interior

E1C06: Which of the following statements concerning remotely controlled amateur stations is true?

Only Extra Class operators may be the control operator of a remote station

A control operator need not be present at the control point

Repeater and auxiliary stations may not be remotely controlled

E1D01: What is the definition of the term telemetry?

Two-way radiotelephone transmissions in excess of 1000 feet

Two-way single channel transmissions of data

One-way transmission that initiates, modifies, or terminates the functions of a device at a distance

E1E13: What are the consequences of failing to appear for re-administration of an examination when so directed by the FCC?

The person may be fined or imprisoned

The licensee is disqualified from any future examination for an amateur operator license grant

All these choices are correct

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

E2A09: What do the terms L band and S band specify with regard to satellite communications?

The 2 meter and 70 centimeter bands

FM and Digital Store-and-Forward systems

Which sideband to use

E2B16: Which of the following is the video standard used by North American Fast Scan ATV stations?

PAL

DRM

Scottie

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

6 meters

2 meters

33 cm

E2D11: Which of the following data are used by the APRS network to communicate your location?

Polar coordinates

Time and frequency

Radio direction finding LOPs

E2E06: What is the most common data rate used for HF packet communications?

48 baud

110 baud

1200 baud

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

E3C09: Which of the following is usually responsible for causing VHF signals to propagate for hundreds of miles?

D-region absorption

Faraday rotation

Ground wave

E4A11: Which of these instruments could be used for detailed analysis of digital signals?

Dip meter

Ohmmeter

Q meter

E4B14: What happens if a dip meter is too tightly coupled to a tuned circuit being checked?

Harmonics are generated

Cross modulation occurs

Intermodulation distortion occurs

E4C14: On which of the following frequencies might a signal be transmitting which is generating a spurious image signal in a receiver tuned to 14.300 MHz and which uses a 455 kHz IF frequency?

13.845 MHz

14.755 MHz

14.445 MHz

E4D05: What transmitter frequencies would cause an intermodulation-product signal in a receiver tuned to 146.70 MHz when a nearby station transmits on 146.52 MHz?

146.88 MHz and 146.34 MHz

146.10 MHz and 147.30 MHz

173.35 MHz and 139.40 MHz

E4E03: Which of the following signals might a receiver noise blanker be able to remove from desired signals?

Signals which are constant at all IF levels

Signals which appear at one IF but not another

Signals which have a sharply peaked frequency distribution

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

E5B05: How long does it take for an initial charge of 20 V DC to decrease to 7.36 V DC in a 0.01-microfarad capacitor when a 2-megohm resistor is connected across it?

0.04 seconds

20 seconds

40 seconds

E5C06: In polar coordinates, what is the impedance of a network consisting of a 100-ohm-reactance capacitor in series with a 100-ohm resistor?

121 ohms at an angle of -25 degrees

191 ohms at an angle of -85 degrees

161 ohms at an angle of -65 degrees

E5D15: What is the power factor of an RL circuit having a 45 degree phase angle between the voltage and the current?

0.866

1.0

0.5

E6A07: In Figure E6-1, what is the schematic symbol for a PNP transistor?

2

4

5

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

Reverse bias

Zero bias

Inductive bias

E6C05: Which of the following is an advantage of CMOS logic devices over TTL devices?

Differential output capability

Lower distortion

Immune to damage from static discharge

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

E6E05: Which of the following noise figure values is typical of a low-noise UHF preamplifier?

-10 dB

44 dBm

-20 dBm

E6F03: What is the most common configuration of an optoisolator or optocoupler?

A lens and a photomultiplier

A frequency modulated helium-neon laser

An amplitude modulated helium-neon laser

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"

E7B13: In Figure E7-2, what is the purpose of R?

Fixed bias

Collector load

Voltage regulation

E7C13: What is one advantage of a Pi matching network over an L matching network consisting of a single inductor and a single capacitor?

L networks cannot perform impedance transformation

Pi networks have fewer components

Pi networks are designed for balanced input and output

E7D01: What is one characteristic of a linear electronic voltage regulator?

It has a ramp voltage as its output

It eliminates the need for a pass transistor

The control element duty cycle is proportional to the line or load conditions

E7E13: Which of the following describes a common means of generating an SSB signal when using digital signal processing?

Mixing products are converted to voltages and subtracted by adder circuits

A frequency synthesizer removes the unwanted sidebands

Emulation of quartz crystal filter characteristics

E7F06: What is one purpose of a marker generator?

To add audio markers to an oscilloscope

To provide a frequency reference for a phase locked loop

To add time signals to a transmitted signal

E7G15: What is the typical output impedance of an integrated circuit op-amp?

Very high

100 ohms

1000 ohms

E7H01: What are three oscillator circuits used in Amateur Radio equipment?

Taft, Pierce and negative feedback

Pierce, Fenner and Beane

Taft, Hartley and Pierce

E8A09: What type of waveform is produced by human speech?

Sinusoidal

Logarithmic

Trapezoidal

E8B08: What parameter does the modulating signal vary in a pulse-position modulation system?

The number of pulses per second

The amplitude of the pulses

The duration of the pulses

E8C12: What is the advantage of including a parity bit with an ASCII character stream?

Faster transmission rate

The signal can overpower interfering signals

Foreign language characters can be sent

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

E9A03: Which of the following antennas has no gain in any direction?

Quarter-wave vertical

Yagi

Half-wave dipole

E9B01: In the antenna radiation pattern shown in Figure E9-1, what is the 3-dB beamwidth?

75 degrees

25 degrees

30 degrees

E9C04: Which of the following describes a basic unterminated rhombic antenna?

Unidirectional; four-sides, each side one quarter-wavelength long; terminated in a resistance equal to its characteristic impedance

Four-sides; an LC network at each corner except for the transmission connection;

Four-sides, each of a different physical length

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

E9E11: What is an effective way of matching a feed line to a VHF or UHF antenna when the impedances of both the antenna and feed line are unknown?

Use a 50-ohm 1:1 balun between the antenna and feed line

Connect a series-resonant LC network across the antenna feed terminals

Connect a parallel-resonant LC network across the antenna feed terminals

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

E9G07: On the Smith chart shown in Figure E9-3, what is the only straight line shown?

The reactance axis

The current axis

The voltage axis

E9H08: What is the function of a sense antenna?

It increases the sensitivity of a DF antenna array

It allows DF antennas to receive signals at different vertical angles

It provides diversity reception that cancels multipath signals