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. - T1A06

Which of the following services are protected from interference by amateur signals under all circumstances?

Select	Answer
A	Radionavigation Service
B	Citizens Radio Service
C	Land Mobile Radio Service
D	Broadcast Service

2. - T1B06

Which 23 cm frequency is authorized to a Technician Class licensee?

Select	Answer
A	3390 MHz
B	2315 MHz
C	146.52 MHz
D	1296 MHz

3. - T1C05

Which of the following is a vanity call sign which a technician class amateur operator might select if available?

Select	Answer
A	K1XXX
B	W1XX
C	KA1X
D	All of these choices are correct

4. - T1D07

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

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

5. - T1E06

Under what type of control do APRS network digipeaters operate?

Select	Answer
A	Manual
B	Local
C	Remote
D	Automatic

6. - T1F05

What method of call sign identification is required for a station transmitting phone signals?

Select	Answer
A	Send the call sign followed by the indicator R
B	Send the call sign using only phone emission
C	Send the call sign followed by the indicator RPT
D	Send the call sign using CW or phone emission

7. - T2A02

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

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

8. - T2B13

Which of the following is true of the use of SSB phone in amateur bands above 50 MHz?

Select	Answer
A	It is permitted in at least some portion of all the amateur bands above 50 MHz
B	It is permitted only by holders of a General Class or higher license
C	It is permitted only on repeaters
D	It is permitted only on when power is limited to no more than 100 watts

9. - T2C02

What is one way to recharge a 12-volt lead-acid station battery if the commercial power is out?

Select	Answer
A	All of these choices are correct
B	Add acid to the battery
C	Cool the battery in ice for several hours
D	Connect the battery in parallel with a vehicles battery and run the engine

10. - T3A06

What term is commonly used to describe the rapid fluttering sound sometimes heard from mobile stations that are moving while transmitting?

Select	Answer
A	Picket fencing
B	Frequency shifting
C	Flip-flopping
D	Pulsing

11. - T3B04

How fast does a radio wave travel through free space?

Select	Answer
A	Its speed is inversely proportional to its wavelength
B	At the speed of light
C	At the speed of sound
D	Its speed increases as the frequency increases

12. - T3C10

What is the radio horizon?

Select	Answer
A	The distance from the ground to a horizontally mounted antenna
B	The shortest distance between two points on the Earth's surface
C	The farthest point you can see when standing at the base of your antenna tower
D	The distance over which two stations can communicate by direct path

13. - T4A05

Where should an in-line SWR meter be connected to monitor the standing wave ratio of the station antenna system?

Select	Answer
A	In series with the station's ground
B	In series with the power supply cable, as close as possible to the radio
C	In series with the feed line, between the transmitter and antenna
D	In parallel with the push-to-talk line and the antenna

14. - T4B12

What is the function of automatic gain control or AGC?

Select	Answer
A	To eliminate RF on the station cabling
B	To keep received audio relatively constant
C	An asymmetric goniometer control used for antenna matching
D	To protect an antenna from lightning

15. - T5A06

How much voltage does a mobile transceiver usually require?

Select	Answer
A	About 30 volts
B	About 120 volts
C	About 12 volts
D	About 240 volts

16. - T5B05

Which of the following is equivalent to 500 milliwatts?

Select	Answer
A	0.5 watts
B	5 watts
C	50 watts
D	0.02 watts

17. - T5C06

What does the abbreviation RF refer to?

Select	Answer
A	The resonant frequency of a tuned circuit
B	The real frequency transmitted as opposed to the apparent frequency
C	Radio frequency signals of all types
D	Reflective force in antenna transmission lines

18. - T5D06

What is the resistance of a circuit that draws 4 amperes from a 12-volt source?

Select	Answer
A	8 Ohms
B	3 ohms
C	48 ohms
D	16 ohms

19. - T6A07

What electrical component is usually composed of a coil of wire?

Select	Answer
A	Inductor
B	Diode
C	Capacitor
D	Switch

20. - T6B02

What electronic component allows current to flow in only one direction?

Select	Answer
A	Driven Element
B	Fuse
C	Resistor
D	Diode

21. - T6C01

What is the name for standardized representations of components in an electrical wiring diagram?

Select	Answer
A	Grey sketch
B	Schematic symbols
C	Component callouts
D	Electrical depictions

22. - T6D06

What component is commonly used to change 120V AC house current to a lower AC voltage for other uses?

Select	Answer
A	Transistor
B	Transformer
C	Variable capacitor
D	Diode

23. - T7A11

Where is an RF preamplifier installed?

Select	Answer
A	Between a transmitter and antenna tuner
B	At the output of the transmitter's power amplifier
C	At the receiver's audio output
D	Between the antenna and receiver

24. - T7B08

What should you do if something in a neighbors home is causing harmful interference to your amateur station?

Select	Answer
A	Check your station and make sure it meets the standards of good amateur practice
B	Work with your neighbor to identify the offending device
C	Politely inform your neighbor about the rules that prohibit the use of devices which cause interference
D	All of these choices are correct

25. - T7C06

What does an SWR reading of 4:1 indicate?

Select	Answer
A	Good impedance match
B	Gain of +4dB
C	Loss of -4dB
D	Impedance mismatch

26. - T7D02

What is the correct way to connect a voltmeter to a circuit?

Select	Answer
A	In parallel with the circuit
B	In series with the circuit
C	In quadrature with the circuit
D	In phase with the circuit

27. - T8A04

Which type of modulation is most commonly used for VHF and UHF voice repeaters?

Select	Answer
A	PSK
B	AM
C	SSB
D	FM

28. - T8B05

What is a satellite beacon?

Select	Answer
A	A reflective surface on the satellite
B	A transmission from a space station that contains information about a satellite
C	The primary transmit antenna on the satellite
D	An indicator light that that shows where to point your antenna

29. - T8C13

What is the Internet Radio Linking Project (IRLP)?

Select	Answer
A	A technique to connect amateur radio systems, such as repeaters, via the Internet using Voice Over Internet Protocol
B	A technique for measuring signal strength of an amateur transmitter via the Internet
C	A system for informing amateurs in real time of the frequency of active DX stations
D	A system for providing access to websites via amateur radio

30. - T8D05

Which of the following is an application of APRS (Automatic Packet Reporting System)?

Select	Answer
A	Providing real time tactical digital communications in conjunction with a map showing the locations of stations
B	Showing automatically the number of packets transmitted via PACTOR during a specific time interval
C	Providing voice over Internet connection between repeaters
D	Providing information on the number of stations signed into a repeater

31. - T9A08

What is the approximate length, in inches, of a quarter-wavelength vertical antenna for 146 MHz?

Select	Answer
A	12
B	19
C	50
D	112

32. - T9B06

Which of the following connectors is most suitable for frequencies above 400 MHz?

Select	Answer
A	A UHF (PL-259/SO-239) connector
B	A DB-25 connector
C	An RS-213 connector
D	A Type N connector

33. - T0A02

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

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

34. - T0B09

Why should you avoid attaching an antenna to a utility pole?

Select	Answer
A	The antenna will not work properly because of induced voltages
B	All of these choices are correct
C	The antenna could contact high-voltage power wires
D	The utility company will charge you an extra monthly fee

35. - T0C12

How does RF radiation differ from ionizing radiation (radioactivity)?

Select	Answer
A	RF radiation can only be detected with an RF dosimeter
B	RF radiation is limited in range to a few feet
C	RF radiation is perfectly safe
D	RF radiation does not have sufficient energy to cause genetic damage