E0A02: When evaluating RF exposure levels from your station at a neighbor's home, what must you do?

Make sure signals from your station are less than the controlled MPE limits

You need only evaluate exposure levels on your own property

Advise your neighbors of the results of your tests

E1A03: With your transceiver displaying the carrier frequency of phone signals, you hear a DX station's CQ on 14.349 MHz USB. Is it legal to return the call using upper sideband on the same frequency?

Yes, because the DX station initiated the contact

Yes, because the displayed frequency is within the 20 meter band

No, USA stations are not permitted to use phone emissions above 14.340 MHz

E1B10: What frequencies are authorized to an amateur station participating in RACES?

Specific segments in the amateur service MF, HF, VHF and UHF bands

Specific local government channels

Military Affiliate Radio System (MARS) channels

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

E1D06: Which of the following special provisions must a space station incorporate in order to comply with space station requirements?

The space station must cease all transmissions after 5 years

The space station must be capable of changing its orbit whenever such a change is ordered by NASA

All of these choices are correct

E1E14: For which types of out-of-pocket expenses do the Part 97 rules state that VEs and VECs may be reimbursed?

Teaching an amateur operator license examination preparation course

No expenses are authorized for reimbursement

Providing amateur operator license examination preparation training materials

E1F05: Amateur stations may not transmit in which of the following frequency segments if they are located in the contiguous 48 states and north of Line A?

440 - 450 MHz

53 - 54 MHz

222 - 223 MHz

E2A12: What is one way to predict the location of a satellite at a given time?

By means of the Doppler data for the specified satellite

By subtracting the mean anomaly from the orbital inclination

By adding the mean anomaly to the orbital inclination

E2B12: How are analog SSTV images typically transmitted on the HF bands?

Video is converted to equivalent Baudot representation

Video is converted to equivalent ASCII representation

Varying tone frequencies representing the video are transmitted using PSK

E2C08: Why are received spread-spectrum signals resistant to interference?

The high power used by a spread-spectrum transmitter keeps its signal from being easily overpowered

The receiver is always equipped with a digital blanker circuit

If interference is detected by the receiver it will signal the transmitter to change frequencies

E2D09: Under clear communications conditions, which of these digital communications modes has the fastest data throughput?

AMTOR

170-Hz shift, 45 baud RTTY

PSK31

E2E02: What do the letters FEC mean as they relate to digital operation?

First Error Correction

Fatal Error Correction

Final Error Correction

E3A03: When scheduling EME contacts, which of these conditions will generally result in the least path loss?

When the Moon is full

When the Moon is at apogee

When the MUF is above 30 MHz

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

80 meters

10 meters

6 meters

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

E-region skip

D-region skip

Downward bending due to aurora refraction

E4A12: Which of the following procedures is an important precaution to follow when connecting a spectrum analyzer to a transmitter output?

Use high quality double shielded coaxial cables to reduce signal losses

Match the antenna to the load

All of these choices are correct

E4B07: Which of the following is good practice when using an oscilloscope probe?

Never use a high impedance probe to measure a low impedance circuit

Never use a DC-coupled probe to measure an AC circuit

All of these choices are correct

E4C03: What is the term for the blocking of one FM phone signal by another, stronger FM phone signal?

Desensitization

Cross-modulation interference

Frequency discrimination

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

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

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

E5A02: What is resonance in an electrical circuit?

The highest frequency that will pass current

The lowest frequency that will pass current

The frequency at which the reactive impedance equals the resistive impedance

E5B11: What is the phase angle between the voltage across and the current through a series RLC circuit if XC is 25 ohms, R is 100 ohms, and XL is 50 ohms?

14 degrees with the voltage lagging the current

76 degrees with the voltage lagging the current

76 degrees with the voltage leading the current

E5C17: In rectangular coordinates, what is the impedance of a circuit that has an admittance of 5 millisiemens at -30 degrees?

173 - j100 ohms

200 + j100 ohms

200 - j100 ohms

E5D17: How many watts are consumed in a circuit having a power factor of 0.6 if the input is 200V AC at 5 amperes?

200 watts

1000 watts

1600 watts

E6A02: Which of the following semiconductor materials contains excess free electrons?

P-type

Bipolar

Insulated gate

E6B04: What type of semiconductor device is designed for use as a voltage-controlled capacitor?

Tunnel diode

Silicon-controlled rectifier

Zener diode

E6C04: Which of the following is the primary advantage of tri-state logic?

Low power consumption

High speed operation

More efficient arithmetic operations

E6D04: What function does a charge-coupled device (CCD) serve in a modern video camera?

It generates the horizontal pulses needed for electron beam scanning

It focuses the light used to produce a pattern of electrical charges corresponding to the image

It combines audio and video information to produce a composite RF signal

E6E04: What is the most common input and output impedance of circuits that use MMICs?

300 ohms

450 ohms

10 ohms

E6F10: What is the most common type of photovoltaic cell used for electrical power generation?

Selenium

Cadmium Sulfide

Copper oxide

E7A10: What is a truth table?

A table of logic symbols that indicate the high logic states of an op-amp

A diagram showing logic states when the digital device's output is true

A table of logic symbols that indicates the low logic states of an op-amp

E7B11: In Figure E7-1, what is the purpose of R3?

Fixed bias

Emitter bypass

Output load resistor

E7C01: How are the capacitors and inductors of a low-pass filter Pi-network arranged between the network's input and output?

Two inductors are in series between the input and output, and a capacitor is connected between the two inductors and ground

Two capacitors are in series between the input and output and an inductor is connected between the two capacitors and ground

An inductor is connected between the input and ground, another inductor is connected between the output and ground, and a capacitor is connected between the input and output

E7D12: What is the purpose of R2 in the circuit shown in Figure E7-3?

It provides fixed bias for Q1

It provides fixed bias for D1

It decouples hum from D1

E7E08: What are the principal frequencies that appear at the output of a mixer circuit?

Two and four times the original frequency

The sum, difference and square root of the input frequencies

1.414 and 0.707 times the input frequency

E7F09: What is the purpose of a frequency counter?

To generate a series of reference signals at known frequency intervals

To display all frequency components of a transmitted signal

To provide a signal source at a very accurate frequency

E7G12: What is an integrated circuit operational amplifier?

A digital audio amplifier whose characteristics are determined by components external to the amplifier

An amplifier used to increase the average output of frequency modulated amateur signals to the legal limit

An RF amplifier used in the UHF and microwave regions

E7H02: What condition must exist for a circuit to oscillate?

It must have at least two stages

It must be neutralized

It must have negative feedback sufficient to cancel the input signal

E8A03: What type of wave is made up of sine waves of a given fundamental frequency plus all its harmonics?

A square wave

A sine wave

A cosine wave

E8B03: What is the modulation index of an FM-phone signal having a maximum frequency deviation of 3000 Hz either side of the carrier frequency, when the modulating frequency is 1000 Hz?

0.3

3000

1000

E8C11: What spread-spectrum communications technique uses a high speed binary bit stream to shift the phase of an RF carrier?

Frequency hopping

Binary phase-shift keying

Phase compandored spread-spectrum

E8D09: What is meant by circularly polarized electromagnetic waves?

Waves with an electric field bent into a circular shape

Waves that circle the Earth

Waves produced by a loop antenna

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

E9D13: What happens to feed point impedance at the base of a fixed-length HF mobile antenna as the frequency of operation is lowered?

The radiation resistance decreases and the capacitive reactance decreases

The radiation resistance increases and the capacitive reactance decreases

The radiation resistance increases and the capacitive reactance increases

E9E05: How must the driven element in a 3-element Yagi be tuned to use a hairpin matching system?

The driven element reactance must be inductive

The driven element resonance must be lower than the operating frequency

The driven element radiation resistance must be higher than the characteristic impedance of the transmission line

E9F02: Which of the following determines the velocity factor of a transmission line?

The termination impedance

The line length

The center conductor resistivity

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

Frequency

SWR

Points with constant resistance

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