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FCC Question ID

E1A09

What is the first action you should take if your digital message forwarding station inadvertently forwards a communication that violates FCC rules?

Choose A

Discontinue forwarding the communication as soon as you become aware of it

Choose B

Notify the originating station that the communication does not comply with FCC rules

Choose C

Notify the nearest FCC Field Engineer’s office

Choose D

Discontinue forwarding all messages

E1B08

What limitations may the FCC place on an amateur station if its signal causes interference to domestic broadcast reception, assuming that the receivers involved are of good engineering design?

Choose A

The amateur station must cease operation

Choose B

The amateur station must cease operation on all frequencies below 30 MHz

Choose C

The amateur station must cease operation on all frequencies above 30 MHz

Choose D

The amateur station must avoid transmitting during certain hours on frequencies that cause the interference

E1C03

How do the control operator responsibilities of a station under automatic control differ from one under local control?

Choose A

Under local control there is no control operator

Choose B

Under automatic control the control operator is not required to be present at the control point

Choose C

Under automatic control there is no control operator

Choose D

Under local control a control operator is not required to be present at a control point

E1D02

What is the amateur satellite service?

Choose A

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

Choose B

A spacecraft launching service for amateur-built satellites

Choose C

A radio communications service using amateur radio stations on satellites

Choose D

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

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?

Choose A

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

Choose B

Three VEs must certify that the examinee is qualified for the license grant and that they have complied with the administering VE requirements

Choose C

Issue the examinee the new or upgrade license

Choose D

All these choices are correct

E1F04

Which of the following geographic descriptions approximately describes "Line A"?

Choose A

A line roughly parallel to and south of the U.S.-Canadian border

Choose B

A line roughly parallel to and west of the U.S. Atlantic coastline

Choose C

A line roughly parallel to and north of the U.S.-Mexican border and Gulf coastline

Choose D

A line roughly parallel to and east of the U.S. Pacific coastline

E2A09

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

Choose A

The 23 centimeter and 13 centimeter bands

Choose B

The 2 meter and 70 centimeter bands

Choose C

FM and Digital Store-and-Forward systems

Choose D

Which sideband to use

E2B10

Which of the following is an acceptable bandwidth for Digital Radio Mondiale (DRM) based voice or SSTV digital transmissions made on the HF amateur bands?

Choose A

3 KHz

Choose B

10 KHz

Choose C

15 KHz

Choose D

20 KHz

E2C13

What indicator is required to be used by U.S.-licensed operators when operating a station via remote control where the transmitter is located in the U.S.?

Choose A

/ followed by the USPS two letter abbreviation for the state in which the remote station is located

Choose B

/R# where # is the district of the remote station

Choose C

The ARRL section of the remote station

Choose D

No additional indicator is required

E2D03

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

Choose A

FSK441

Choose B

PACTOR III

Choose C

Olivia

Choose D

JT65

E2E10

Which of these digital modes has the narrowest bandwidth?

Choose A

MFSK16

Choose B

170 Hz shift, 45 baud RTTY

Choose C

PSK31

Choose D

300-baud packet

E3A14

From the contiguous 48 states, in which approximate direction should an antenna be pointed to take maximum advantage of aurora propagation?

Choose A

South

Choose B

North

Choose C

East

Choose D

West

E3B07

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

Choose A

High D layer absorption

Choose B

Meteor scatter

Choose C

Transmit frequency is higher than the MUF

Choose D

Receipt of a signal by more than one path

E3C03

Which of the following signal paths is most likely to experience high levels of absorption when the A index or K index is elevated?

Choose A

Transequatorial propagation

Choose B

Polar paths

Choose C

Sporadic-E

Choose D

NVIS

E4A01

Which of the following parameters determines the bandwidth of a digital or computer-based oscilloscope?

Choose A

Input capacitance

Choose B

Input impedance

Choose C

Sampling rate

Choose D

Sample resolution

E4B13

Which S parameter is equivalent to forward gain?

Choose A

S11

Choose B

S12

Choose C

S21

Choose D

S22

E4C01

What is an effect of excessive phase noise in the local oscillator section of a receiver?

Choose A

It limits the receiver’s ability to receive strong signals

Choose B

It reduces receiver sensitivity

Choose C

It decreases receiver third-order intermodulation distortion dynamic range

Choose D

It can cause strong signals on nearby frequencies to interfere with reception of weak signals

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?

Choose A

146.34 MHz and 146.61 MHz

Choose B

146.88 MHz and 146.34 MHz

Choose C

146.10 MHz and 147.30 MHz

Choose D

173.35 MHz and 139.40 MHz

E4E05

How can noise from an electric motor be suppressed?

Choose A

By installing a high pass filter in series with the motor’s power leads

Choose B

By installing a brute-force AC-line filter in series with the motor leads

Choose C

By installing a bypass capacitor in series with the motor leads

Choose D

By using a ground-fault current interrupter in the circuit used to power the motor

E5A04

What is the magnitude of the impedance of a circuit with a resistor, an inductor and a capacitor all in parallel, at resonance?

Choose A

Approximately equal to circuit resistance

Choose B

Approximately equal to inductive reactance

Choose C

Low, as compared to the circuit resistance

Choose D

Approximately equal to capacitive reactance

E5B05

What happens to the magnitude of a reactance when it is converted to a susceptance?

Choose A

It is unchanged

Choose B

The sign is reversed

Choose C

It is shifted by 90 degrees

Choose D

The magnitude of the susceptance is the reciprocal of the magnitude of the reactance

E5C14

Which point on Figure E5-2 best represents the impedance of a series circuit consisting of a 400 ohm resistor and a 38 picofarad capacitor at 14 MHz?

Choose A

Point 2

Choose B

Point 4

Choose C

Point 5

Choose D

Point 6

E5D10

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

Choose A

By multiplying the apparent power times the power factor

Choose B

By dividing the reactive power by the power factor

Choose C

By dividing the apparent power by the power factor

Choose D

By multiplying the reactive power times the power factor

E6A14

How does DC input impedance at the gate of a field-effect transistor compare with the DC input impedance of a bipolar transistor?

Choose A

They are both low impedance

Choose B

An FET has low input impedance; a bipolar transistor has high input impedance

Choose C

An FET has high input impedance; a bipolar transistor has low input impedance

Choose D

They are both high impedance

E6B02

What is an important characteristic of a Schottky diode as compared to an ordinary silicon diode when used as a power supply rectifier?

Choose A

Much higher reverse voltage breakdown

Choose B

Controlled reverse avalanche voltage

Choose C

Enhanced carrier retention time

Choose D

Less forward voltage drop

E6C01

What is the function of hysteresis in a comparator?

Choose A

To prevent input noise from causing unstable output signals

Choose B

To allow the comparator to be used with AC input signals

Choose C

To cause the output to change states continually

Choose D

To increase the sensitivity

E6D02

What is the equivalent circuit of a quartz crystal?

Choose A

Motional capacitance, motional inductance, and loss resistance in series, all in parallel with a shunt capacitor representing electrode and stray capacitance

Choose B

Motional capacitance, motional inductance, loss resistance, and a capacitor representing electrode and stray capacitance all in parallel

Choose C

Motional capacitance, motional inductance, loss resistance, and a capacitor representing electrode and stray capacitance all in series

Choose D

Motional inductance and loss resistance in series, paralleled with motional capacitance and a capacitor representing electrode and stray capacitance

E6E01

Which of the following is true of a charge-coupled device (CCD)?

Choose A

Its phase shift changes rapidly with frequency

Choose B

It is a CMOS analog-to-digital converter

Choose C

It samples an analog signal and passes it in stages from the input to the output

Choose D

It is used in a battery charger circuit

E6F08

Why are optoisolators often used in conjunction with solid state circuits when switching 120VAC?

Choose A

Optoisolators provide a low impedance link between a control circuit and a power circuit

Choose B

Optoisolators provide impedance matching between the control circuit and power circuit

Choose C

Optoisolators provide a very high degree of electrical isolation between a control circuit and the circuit being switched

Choose D

Optoisolators eliminate the effects of reflected light in the control circuit

E7A01

Which is a bi-stable circuit?

Choose A

An AND gate

Choose B

An OR gate

Choose C

A flip-flop

Choose D

A clock

E7B06

Which of the following amplifier types reduces or eliminates even order harmonics?

Choose A

Push-push

Choose B

Push-pull

Choose C

Class C

Choose D

Class AB

E7C07

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

Choose A

A band-pass filter

Choose B

A notch filter

Choose C

A Pi-network filter

Choose D

An all-pass filter

E7D06

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

Choose A

It provides negative feedback to improve regulation

Choose B

It provides a constant load for the voltage source

Choose C

It increases the current-handling capability of the regulator

Choose D

It provides D1 with current

E7E07

What is meant by the term baseband in radio communications?

Choose A

The lowest frequency band that the transmitter or receiver covers

Choose B

The frequency components present in the modulating signal

Choose C

The unmodulated bandwidth of the transmitted signal

Choose D

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

E7F13

What is the function of taps in a digital signal processing filter?

Choose A

To reduce excess signal pressure levels

Choose B

Provide access for debugging software

Choose C

Select the point at which baseband signals are generated

Choose D

Provide incremental signal delays for filter algorithms

E7G05

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

Choose A

Restrict both gain and Q

Choose B

Restrict gain but increase Q

Choose C

Restrict Q but increase gain

Choose D

Increase both gain and Q

E7H15

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

Choose A

Wide-band AF and RF power amplification

Choose B

Comparison of two digital input signals, digital pulse counter

Choose C

Photovoltaic conversion, optical coupling

Choose D

Frequency synthesis, FM demodulation

E8A10

What is the purpose of a low pass filter used in conjunction with a digital-to-analog converter?

Choose A

Lower the input bandwidth to increase the effective resolution

Choose B

Improve accuracy by removing out of sequence codes from the input

Choose C

Remove harmonics from the output caused by the discrete analog levels generated

Choose D

All of these choices are correct

E8B08

What describes Orthogonal Frequency Division Multiplexing?

Choose A

A frequency modulation technique which uses non-harmonically related frequencies

Choose B

A bandwidth compression technique using Fourier transforms

Choose C

A digital mode for narrow band, slow speed transmissions

Choose D

A digital modulation technique using subcarriers at frequencies chosen to avoid intersymbol interference

E8C09

Which is the name of a digital code where each preceding or following character changes by only one bit?

Choose A

Binary Coded Decimal Code

Choose B

Extended Binary Coded Decimal Interchange Code

Choose C

Excess 3 code

Choose D

Gray code

E8D09

What is considered a good minimum IMD level for an idling PSK signal?

Choose A

+10 dB

Choose B

+15 dB

Choose C

-20 dB

Choose D

-30 dB

E9A03

Why would one need to know the feed point impedance of an antenna?

Choose A

To match impedances in order to minimize standing wave ratio on the transmission line

Choose B

To measure the near-field radiation density from a transmitting antenna

Choose C

To calculate the front-to-side ratio of the antenna

Choose D

To calculate the front-to-back ratio of the antenna

E9B08

How can the approximate beam-width in a given plane of a directional antenna be determined?

Choose A

Note the two points where the signal strength of the antenna is 3 dB less than maximum and compute the angular difference

Choose B

Measure the ratio of the signal strengths of the radiated power lobes from the front and rear of the antenna

Choose C

Draw two imaginary lines through the ends of the elements and measure the angle between the lines

Choose D

Measure the ratio of the signal strengths of the radiated power lobes from the front and side of the antenna

E9C04

What happens to the radiation pattern of an unterminated long wire antenna as the wire length is increased?

Choose A

The lobes become more perpendicular to the wire

Choose B

The lobes align more in the direction of the wire

Choose C

The vertical angle increases

Choose D

The front-to-back ratio decreases

E9D10

What happens to feed point impedance at the base of a fixed length HF mobile antenna as the frequency of operation is lowered?

Choose A

The radiation resistance decreases and the capacitive reactance decreases

Choose B

The radiation resistance decreases and the capacitive reactance increases

Choose C

The radiation resistance increases and the capacitive reactance decreases

Choose D

The radiation resistance increases and the capacitive reactance increases

E9E04

What is the purpose of the series capacitor in a gamma-type antenna matching network?

Choose A

To provide DC isolation between the feed line and the antenna

Choose B

To cancel the inductive reactance of the matching network

Choose C

To provide a rejection notch that prevents the radiation of harmonics

Choose D

To transform the antenna impedance to a higher value

E9F12

What impedance does a 1/4 wavelength transmission line present to a generator when the line is open at the far end?

Choose A

The same as the characteristic impedance of the line

Choose B

The same as the input impedance to the generator

Choose C

Very high impedance

Choose D

Very low impedance

E9G10

What do the arcs on a Smith chart represent?

Choose A

Frequency

Choose B

SWR

Choose C

Points with constant resistance

Choose D

Points with constant reactance

E9H11

What characteristic of a cardioid pattern antenna is useful for direction finding?

Choose A

A very sharp peak

Choose B

A very sharp single null

Choose C

Broad band response

Choose D

High-radiation angle

E0A06

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

Choose A

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

Choose B

Ground reflections and scattering make the field impedance vary with location

Choose C

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

Choose D

All of these choices are correct