US Amateur Radio - Technician (Element 2, 2014-2018) Practice Test

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US Amateur Radio - Technician (Element 2, 2014-2018) Practice Test

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1. - T1A01

Which of the following is a purpose of the Amateur Radio Service as stated in the FCC rules and regulations?

Select	Answer
A	Providing personal radio communications for as many citizens as possible
B	Advancing skills in the technical and communication phases of the radio art
C	All of these choices are correct
D	Providing communications for international non-profit organizations

2. - T1B13

Which emission may be used between 219 and 220 MHz?

Select	Answer
A	Spread spectrum
B	SSB voice
C	Data
D	Fast-scan television

3. - T1C01

Which type of call sign has a single letter in both its prefix and suffix?

Select	Answer
A	Sequential
B	Special event
C	Vanity
D	In-memoriam

4. - T1D07

What types of amateur stations can automatically retransmit the signals of other amateur stations?

Select	Answer
A	Auxiliary, beacon, or Earth stations
B	Earth, repeater, or space stations
C	Beacon, repeater, or space stations
D	Auxiliary, repeater, or space stations

5. - T1E05

What is an amateur station control point?

Select	Answer
A	The location at which the control operator function is performed
B	The mailing address of the station licensee
C	The location of the stations transmitting antenna
D	The location of the station transmitting apparatus

6. - T1F11

To which foreign stations do the FCC rules authorize the transmission of non-emergency third party communications?

Select	Answer
A	Those in ITU Regions 2 and 3 only
B	Those in ITU Region 3 only
C	Those in ITU Region 2 only
D	Any station whose government permits such communications

7. - T2A02

What is the national calling frequency for FM simplex operations in the 70 cm band?

Select	Answer
A	146.520 MHz
B	432.100 MHz
C	446.000 MHz
D	145.000 MHz

8. - T2B12

Under what circumstances should you consider communicating via simplex rather than a repeater?

Select	Answer
A	When the stations can communicate directly without using a repeater
B	Only if you have simplex modulation capability
C	Only when you have an endorsement for simplex operation on your license
D	Only when third party traffic is not being passed

9. - T2C10

What is the preamble in a formal traffic message?

Select	Answer
A	The first paragraph of the message text
B	The message number
C	The information needed to track the message as it passes through the amateur radio traffic handling system
D	The priority handling indicator for the message

10. - T3A10

What may occur if data signals propagate over multiple paths?

Select	Answer
A	Transmission rates can be increased by a factor equal to the number of separate paths observed
B	Transmission rates must be decreased by a factor equal to the number of separate paths observed
C	No significant changes will occur if the signals are transmitting using FM
D	Error rates are likely to increase

11. - T3B03

What are the two components of a radio wave?

Select	Answer
A	AC and DC
B	Voltage and current
C	Electric and magnetic fields
D	Ionizing and non-ionizing radiation

12. - T3C06

What mode is responsible for allowing over-the-horizon VHF and UHF communications to ranges of approximately 300 miles on a regular basis?

Select	Answer
A	Faraday rotation
B	Tropospheric scatter
C	D layer refraction
D	F2 layer refraction

13. - T4A01

Which of the following is true concerning the microphone connectors on amateur transceivers?

Select	Answer
A	Un-keyed connectors allow any microphone to be connected
B	Some connectors include push-to-talk and voltages for powering the microphone
C	All transceivers using the same connector type are wired identically
D	All transceivers use the same microphone connector type

14. - T4B11

Which of the following describes the common meaning of the term "repeater offset"?

Select	Answer
A	The time delay before the repeater timer resets
B	The distance between the repeaters transmit and receive antennas
C	Matching the antenna impedance to the feed line impedance
D	The difference between the repeaters transmit and receive frequencies

15. - T5A11

What is the basic unit of electromotive force?

Select	Answer
A	The volt
B	The ampere
C	The ohm
D	The watt

16. - T5B09

What is the approximate amount of change, measured in decibels (dB), of a power increase from 5 watts to 10 watts?

Select	Answer
A	10 dB
B	3 dB
C	2 dB
D	5 dB

17. - T5C11

How many amperes are flowing in a circuit when the applied voltage is 12 volts DC and the load is 120 watts?

Select	Answer
A	10 amperes
B	132 amperes
C	12 amperes
D	0.1 amperes

18. - T5D10

What is the voltage across a 2-ohm resistor if a current of 0.5 amperes flows through it?

Select	Answer
A	2.5 volts
B	1.5 volts
C	0.25 volts
D	1 volt

19. - T6A09

What electrical component is used to protect other circuit components from current overloads?

Select	Answer
A	All of these choices are correct
B	Inductor
C	Capacitor
D	Fuse

20. - T6B04

Which of the following components can be made of three layers of semiconductor material?

Select	Answer
A	Transistor
B	Triode
C	Pentagrid converter
D	Alternator

21. - T6C02

What is component 1 in figure T1?

Select	Answer
A	Connector
B	Resistor
C	Transistor
D	Battery

22. - T6D12

Which of the following is a common reason to use shielded wire?

Select	Answer
A	To couple the wire to other signals
B	To prevent coupling of unwanted signals to or from the wire
C	To increase the current carrying capability of the wire
D	To decrease the resistance of DC power connections

23. - T7A01

Which term describes the ability of a receiver to detect the presence of a signal?

Select	Answer
A	Total Harmonic Distortion
B	Linearity
C	Selectivity
D	Sensitivity

24. - T7B02

What would cause a broadcast AM or FM radio to receive an amateur radio transmission unintentionally?

Select	Answer
A	The audio amplifier of the transmitter is overloaded
B	The microphone gain of the transmitter is turned up too high
C	The deviation of an FM transmitter is set too low
D	The receiver is unable to reject strong signals outside the AM or FM band

25. - T7C01

What is the primary purpose of a dummy load?

Select	Answer
A	To prevent over-modulation of your transmitter
B	To improve the radiation from your antenna
C	To improve the signal to noise ratio of your receiver
D	To prevent the radiation of signals when making tests

26. - T7D04

Which instrument is used to measure electric current?

Select	Answer
A	A wavemeter
B	A voltmeter
C	An ohmmeter
D	An ammeter

27. - T8A06

Which sideband is normally used for 10 meter HF, VHF and UHF single-sideband communications?

Select	Answer
A	Inverted sideband
B	Upper sideband
C	Suppressed sideband
D	Lower sideband

28. - T8B09

What causes spin fading when referring to satellite signals?

Select	Answer
A	Circular polarized noise interference radiated from the sun
B	Rotation of the satellite and its antennas
C	Interfering signals within the satellite uplink band
D	Doppler shift of the received signal

29. - T8C10

How do you select a specific IRLP node when using a portable transceiver?

Select	Answer
A	Choose the correct DSC tone
B	Use the keypad to transmit the IRLP node ID
C	Access the repeater autopatch
D	Choose a specific CTCSS tone

30. - T8D03

Which of the following devices provides data to the transmitter when sending automatic position reports from a mobile amateur radio station?

Select	Answer
A	A WWV receiver
B	A Global Positioning System receiver
C	The vehicle speedometer
D	A connection to a broadcast FM sub-carrier receiver

31. - T9A12

What is a reason to use a properly mounted 5/8 wavelength antenna for VHF or UHF mobile service?

Select	Answer
A	It features a very high angle of radiation and is better for communicating via a repeater
B	The 5/8 wavelength antenna completely eliminates distortion caused by reflected signals
C	The 5/8 wavelength antenna offers a 10-times power gain over a 1/4 wavelength design
D	It offers a lower angle of radiation and more gain than a 1/4 wavelength antenna and usually provides improved coverage

32. - T9B10

What electrical difference exists between the smaller RG-58 and larger RG-8 coaxial cables?

Select	Answer
A	RG-58 cable can handle higher power levels
B	RG-8 cable has less loss at a given frequency
C	There is no significant difference between the two types
D	RG-58 cable has less loss at a given frequency

33. - T0A02

How does current flowing through the body cause a health hazard?

Select	Answer
A	It causes involuntary muscle contractions
B	All of these choices are correct
C	By heating tissue
D	It disrupts the electrical functions of cells

34. - T0B04

Which of the following is an important safety precaution to observe when putting up an antenna tower?

Select	Answer
A	All of these choices are correct
B	Look for and stay clear of any overhead electrical wires
C	Wear a ground strap connected to your wrist at all times
D	Insulate the base of the tower to avoid lightning strikes

35. - T0C11

What is the definition of duty cycle during the averaging time for RF exposure?

Select	Answer
A	The percentage of time that a transmitter is transmitting
B	The difference between the PEP and average power output of a transmitter
C	The difference between the lowest power output and the highest power output of a transmitter
D	The percentage of time that a transmitter is not transmitting

Figure T1