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	Land Mobile Radio Service
B	Broadcast Service
C	Citizens Radio Service
D	Radionavigation Service

2. - T1B07

What amateur band are you using if you are transmitting on 223.50 MHz?

Select	Answer
A	1.25 meter band
B	15 meter band
C	2 meter band
D	10 meter band

3. - T1C04

When are you allowed to operate your amateur station in a foreign country?

Select	Answer
A	When the foreign country authorizes it
B	When you are communicating with non-licensed individuals in another country
C	When there is a mutual agreement allowing third party communications
D	When authorization permits amateur communications in a foreign language

4. - T1D03

When is the transmission of codes or ciphers that hide the meaning of a message allowed by an amateur station?

Select	Answer
A	Only when transmitting control commands to space stations or radio control craft
B	Only when frequencies above 1280 MHz are used
C	Only when operating mobile
D	Only during contests

5. - T1E08

Which of the following is an example of automatic control?

Select	Answer
A	Using a computer or other device to automatically send CW
B	Controlling the station over the Internet
C	Repeater operation
D	Using a computer or other device to automatically identify

6. - T1F04

Which of the following is an acceptable language to use for station identification when operating in a phone sub-band?

Select	Answer
A	The English language
B	English, French, or Spanish
C	Any language recognized by the United Nations
D	Any language recognized by the ITU

7. - T2A05

How should you respond to a station calling CQ?

Select	Answer
A	Transmit the other stations call sign followed by your call sign
B	Transmit CQ followed by the other stations call sign
C	Transmit a signal report followed by your call sign
D	Transmit your call sign followed by the other stations call sign

8. - T2B10

Which Q signal indicates that you are receiving interference from other stations?

Select	Answer
A	QTH
B	QRN
C	QRM
D	QSB

9. - T2C08

Which of the following is a characteristic of good emergency traffic handling?

Select	Answer
A	Passing messages exactly as received
B	Making decisions as to whether or not messages should be relayed or delivered
C	All of these choices are correct
D	Communicating messages to the news media for broadcast outside the disaster area

10. - T3A08

Which of the following is a likely cause of irregular fading of signals received by ionospheric reflection?

Select	Answer
A	Random combining of signals arriving via different paths
B	Frequency shift due to Faraday rotation
C	Intermodulation distortion
D	Interference from thunderstorms

11. - T3B07

What property of radio waves is often used to identify the different frequency bands?

Select	Answer
A	The magnetic intensity of waves
B	The time it takes for waves to travel one mile
C	The approximate wavelength
D	The voltage standing wave ratio of waves

12. - T3C07

What band is best suited for communicating via meteor scatter?

Select	Answer
A	70 cm
B	2 meters
C	10 meters
D	6 meters

13. - T4A03

Which is a good reason to use a regulated power supply for communications equipment?

Select	Answer
A	A regulated power supply has FCC approval
B	It prevents voltage fluctuations from reaching sensitive circuits
C	A fuse or circuit breaker regulates the power
D	Power consumption is independent of load

14. - T4B12

What is the function of automatic gain control or AGC?

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

15. - T5A02

Electrical power is measured in which of the following units?

Select	Answer
A	Ohms
B	Watts
C	Amperes
D	Volts

16. - T5B08

How many microfarads are 1,000,000 picofarads?

Select	Answer
A	1,000,000,000 microfarads
B	0.001 microfarads
C	1000 microfarads
D	1 microfarad

17. - T5C05

What is the unit of frequency?

Select	Answer
A	Tesla
B	Farad
C	Henry
D	Hertz

18. - T5D04

What is the resistance of a circuit in which a current of 3 amperes flows through a resistor connected to 90 volts?

Select	Answer
A	93 ohms
B	30 ohms
C	3 ohms
D	270 ohms

19. - T6A03

What electrical parameter is controlled by a potentiometer?

Select	Answer
A	Resistance
B	Field strength
C	Inductance
D	Capacitance

20. - T6B05

Which of the following electronic components can amplify signals?

Select	Answer
A	Variable resistor
B	Transistor
C	Multi-cell battery
D	Electrolytic capacitor

21. - T6C11

What is component 4 in figure T3?

Select	Answer
A	Dummy load
B	Antenna
C	Transmitter
D	Ground

22. - T6D09

What is the name of a device that combines several semiconductors and other components into one package?

Select	Answer
A	Integrated circuit
B	Transformer
C	Transducer
D	Multi-pole relay

23. - T7A07

What is meant by term PTT?

Select	Answer
A	Precise tone transmissions used to limit repeater access to only certain signals
B	The push to talk function which switches between receive and transmit
C	Pre-transmission tuning to reduce transmitter harmonic emission
D	A primary transformer tuner use to match antennas

24. - T7B04

Which of the following is a way to reduce or eliminate interference by an amateur transmitter to a nearby telephone?

Select	Answer
A	Put a filter on the amateur transmitter
B	Reduce the microphone gain
C	Put a RF filter on the telephone
D	Reduce the SWR on the transmitter transmission line

25. - T7C12

Which of the following is a common use of coaxial cable?

Select	Answer
A	Carrying RF signals between a radio and antenna
B	Connecting data signals from a TNC to a computer
C	Securing masts, tubing, and other cylindrical objects on towers
D	Carrying dc power from a vehicle battery to a mobile radio

26. - T7D04

Which instrument is used to measure electric current?

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

27. - T8A05

Which of the following types of emission has the narrowest bandwidth?

Select	Answer
A	SSB voice
B	CW
C	Slow-scan TV
D	FM voice

28. - T8B11

What is a commonly used method of sending signals to and from a digital satellite?

Select	Answer
A	WSJT
B	USB AFSK
C	FM Packet
D	PSK31

29. - T8C04

Which of the following is good procedure when contacting another station in a radio contest?

Select	Answer
A	Work the station twice to be sure that you are in his log
B	Be sure to sign only the last two letters of your call if there is a pileup calling the station
C	Send only the minimum information needed for proper identification and the contest exchange
D	All of these choices are correct

30. - T8D11

What is an ARQ transmission system?

Select	Answer
A	A digital scheme whereby the receiving station detects errors and sends a request to the sending station to retransmit the information
B	A system used to encrypt command signals to an amateur radio satellite
C	A method of compressing the data in a message so more information can be sent in a shorter time
D	A special transmission format limited to video signals

31. - T9A03

Which of the following describes a simple dipole mounted so the conductor is parallel to the Earth's surface?

Select	Answer
A	A horizontally polarized antenna
B	A vertically polarized antenna
C	A ground wave antenna
D	A rhombic antenna

32. - T9B07

Which of the following is true of PL-259 type coax connectors?

Select	Answer
A	They are water tight
B	They are preferred for microwave operation
C	They are a bayonet type connector
D	They are commonly used at HF frequencies

33. - T0A06

What is a good way to guard against electrical shock at your station?

Select	Answer
A	Use three-wire cords and plugs for all AC powered equipment
B	Connect all AC powered station equipment to a common safety ground
C	Use a circuit protected by a ground-fault interrupter
D	All of these choices are correct

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	The utility company will charge you an extra monthly fee
C	All of these choices are correct
D	The antenna could contact high-voltage power wires

35. - T0C13

If the averaging time for exposure is 6 minutes, how much power density is permitted if the signal is present for 3 minutes and absent for 3 minutes rather than being present for the entire 6 minutes?

Select	Answer
A	3 times as much
B	There is no adjustment allowed for shorter exposure times
C	1/2 as much
D	2 times as much

Figure T3