Ham Extra License Practice Quiz


• Percentage: 0%; Correct: 0; Total: 0 of 50

E0A04: When evaluating a site with multiple transmitters operating at the same time, the operators and licensees of which transmitters are responsible for mitigating over-exposure situations?

Only the most powerful transmitter
Only commercial transmitters
Each transmitter that produces 5% or more of its MPE exposure limit at accessible locations
Each transmitter operating with a duty-cycle greater than 50%

E1A06: Which of the following describes the rules for operation on the 60 meter band?

Working DX is not permitted
Operation is restricted to specific emission types and specific channels
Operation is restricted to LSB
All of these choices are correct

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?

You may have to notify the Federal Aviation Administration and register it with the FCC as required by Part 17 of FCC rules
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

E1C10: What types of amateur stations may automatically retransmit the radio signals of other amateur stations?

Only beacon, repeater or space stations
Only auxiliary, repeater or space stations
Only earth stations, repeater stations or model craft
Only auxiliary, beacon or space stations

E1D05: What class of licensee is authorized to be the control operator of a space station?

All except Technician Class
Only General, Advanced or Amateur Extra Class
All classes
Only Amateur Extra Class

E1E10: What must the administering VEs do after the administration of a successful examination for an amateur operator license?

They must collect and send the documents to the NCVEC for grading
They must collect and submit the documents to the coordinating VEC for grading
They must submit the application document to the coordinating VEC according to the coordinating VEC instructions
They must collect and send the documents to the FCC according to instructions

E1F02: Which of the following operating arrangements allows an FCC-licensed US citizen to operate in many European countries, and alien amateurs from many European countries to operate in the US?

CEPT agreement
IARP agreement
ITU reciprocal license
All of these choices are correct

E2A13: What type of satellite appears to stay in one position in the sky?

HEO
Geostationary
Geomagnetic
LEO

E2B14: What aspect of an amateur slow-scan television signal encodes the brightness of the picture?

Tone frequency
Tone amplitude
Sync amplitude
Sync frequency

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 weak signal segment of the band, with most of the activity near the calling frequency
In the middle of the band, usually 25 kHz above the national calling frequency

E2D03: Which of the following digital modes is especially useful for EME communications?

FSK441
PACTOR III
Olivia
JT65

E2E08: Which of the following HF digital modes can be used to transfer binary files?

Hellschreiber
PACTOR
RTTY
AMTOR

E3A06: What frequency range would you normally tune to find EME signals in the 2 meter band?

144.000 - 144.001 MHz
144.000 - 144.100 MHz
144.100 - 144.300 MHz
145.000 - 145.100 MHz

E3B07: Which of the following could account for hearing an echo on the received signal of a distant station?

High D layer absorption
Meteor scatter
Transmit frequency is higher than the MUF
Receipt of a signal by more than one path

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

E-region skip
D-region skip
Downward bending due to aurora refraction
Downward bending due to density variations in the atmosphere

E4A09: Which of the following describes a good method for measuring the intermodulation distortion of your own PSK signal?

Transmit into a dummy load, receive the signal on a second receiver, and feed the audio into the sound card of a computer running an appropriate PSK program
Multiply the ALC level on the transmitter during a normal transmission by the average power output
Use an RF voltmeter coupled to the transmitter output using appropriate isolation to prevent damage to the meter
All of these choices are correct

E4B01: Which of the following factors most affects the accuracy of a frequency counter?

Input attenuator accuracy
Time base accuracy
Decade divider accuracy
Temperature coefficient of the logic

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
Easier for front-end circuitry to eliminate image responses
Improved receiver noise figure

E4D01: What is meant by the blocking dynamic range of a receiver?

The difference in dB between the noise floor and thelevel of an incoming signal which will cause 1 dB of gain compression
The minimum difference in dB between the levels of two FM signals which will cause one signal to block the other
The difference in dB between the noise floor and the third order intercept point
The minimum difference in dB between two signals which produce third order intermodulation products greater than the noise floor

E4E07: How can you determine if line noise interference is being generated within your home?

By checking the power line voltage with a time domain reflectometer
By observing the AC power line waveform with an oscilloscope
By turning off the AC power line main circuit breaker and listening on a battery operated radio
By observing the AC power line voltage with a spectrum analyzer

E5A10: What is the half-power bandwidth of a parallel resonant circuit that has a resonant frequency of 1.8 MHz and a Q of 95?

18.9 kHz
1.89 kHz
94.5 kHz
9.45 kHz

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?

0.02 seconds
0.04 seconds
20 seconds
40 seconds

E5C21: Which point on Figure E5-2 best represents the impedance of a series circuit consisting of a 300 ohm resistor and a 19 picofarad capacitor at 21.200 MHz?

Point 1
Point 3
Point 7
Point 8

E5D04: What unit measures electrical energy stored in an electrostatic field?

Coulomb
Joule
Watt
Volt

E6A04: What is the name given to an impurity atom that adds holes to a semiconductor crystal structure?

Insulator impurity
N-type impurity
Acceptor impurity
Donor impurity

E6B10: In Figure E6-3, what is the schematic symbol for a light-emitting diode?

1
5
6
7

E6C01: What is the recommended power supply voltage for TTL series integrated circuits?

12 volts
1.5 volts
5 volts
13.6 volts

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 is commonly used as an analog-to-digital converter
It samples and stores analog signals

E6E06: What characteristics of the MMIC make it a popular choice for VHF through microwave circuits?

The ability to retrieve information from a single signal even in the presence of other strong signals.
Plate current that is controlled by a control grid
Nearly infinite gain, very high input impedance, and very low output impedance
Controlled gain, low noise figure, and constant input and output impedance over the specified frequency range

E6F09: What is the efficiency of a photovoltaic cell?

The output RF power divided by the input dc power
The effective payback period
The open-circuit voltage divided by the short-circuit current under full illumination
The relative fraction of light that is converted to current

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

Reverse Logic
Assertive Logic
Negative logic
Positive Logic

E7B08: How can an RF power amplifier be neutralized?

By increasing the driving power
By reducing the driving power
By feeding a 180-degree out-of-phase portion of the output back to the input
By feeding an in-phase component of the output back to the input

E7C05: Which filter type is described as having ripple in the passband and a sharp cutoff?

A Butterworth filter
An active LC filter
A passive op-amp filter
A Chebyshev filter

E7D02: What is one characteristic of a switching electronic voltage regulator?

The resistance of a control element is varied in direct proportion to the line voltage or load current
It is generally less efficient than a linear regulator
The control device's duty cycle is controlled to produce a constant average output voltage
It gives a ramp voltage at its output

E7E12: What is a frequency discriminator stage in a FM receiver?

An FM generator circuit
A circuit for filtering two closely adjacent signals
An automatic band-switching circuit
A circuit for detecting FM signals

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

It produces one output pulse for every ten input pulses
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

E7G14: What is the typical input impedance of an integrated circuit op-amp?

100 ohms
1000 ohms
Very low
Very high

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

Taft, Pierce and negative feedback
Pierce, Fenner and Beane
Taft, Hartley and Pierce
Colpitts, Hartley and Pierce

E8A01: What type of wave is made up of a sine wave plus all of its odd harmonics?

A square wave
A sine wave
A cosine wave
A tangent wave

E8B09: What is meant by deviation ratio?

The ratio of the audio modulating frequency to the center carrier frequency
The ratio of the maximum carrier frequency deviation to the highest audio modulating 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

E8C03: What is one advantage of using the ASCII code for data communications?

It includes built-in error-correction features
It contains fewer information bits per character than any other code
It is possible to transmit both upper and lower case text
It uses one character as a shift code to send numeric and special characters

E8D16: What is the RMS value of a 340-volt peak-to-peak pure sine wave?

120V AC
170V AC
240V AC
300V AC

E9A09: What is meant by antenna bandwidth?

Antenna length divided by the number of elements
The frequency range over which an antenna satisfies a performance requirement
The angle between the half-power radiation points
The angle formed between two imaginary lines drawn through the element ends

E9B02: In the antenna radiation pattern shown in Figure E9-1, what is the front-to-back ratio?

36 dB
18 dB
24 dB
14 dB

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 low-angle radiation
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 6 dB
Gain increases by 3 dB

E9E01: What system matches a high-impedance transmission line to a lower impedance antenna by connecting the line to the driven element in two places spaced a fraction of a wavelength each side of element center?

The gamma matching system
The delta matching system
The omega matching system
The stub matching system

E9F15: What impedance does a 1/2-wavelength transmission line present to a generator when the line is open at the far end?

Very high impedance
Very low impedance
The same as the characteristic impedance of the line
The same as the output impedance of the generator

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

In fractions of transmission line electrical frequency
In fractions of transmission line electrical wavelength
In fractions of antenna electrical wavelength
In fractions of antenna electrical frequency

E9H02: What is the effective radiated power relative to a dipole of a repeater station with 200 watts transmitter power output, 4-dB feed line loss, 3.2-dB duplexer loss, 0.8-dB circulator loss and 10-dBd antenna gain?

317 watts
2000 watts
126 watts
300 watts