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. - T1A09

Who selects a Frequency Coordinator?

Select	Answer
A	Amateur operators in a local or regional area whose stations are eligible to be auxiliary or repeater stations
B	FCC Regional Field Office
C	The FCC Office of Spectrum Management and Coordination Policy
D	The local chapter of the Office of National Council of Independent Frequency Coordinators

2. - T1B08

Which of the following is a result of the fact that the amateur service is secondary in some portions of the 70 cm band?

Select	Answer
A	International communications are not permitted on 70 cm
B	U.S. amateurs may find non-amateur stations in the bands, and must avoid interfering with them
C	U.S. amateurs must give foreign amateur stations priority in those portions
D	Digital transmissions are not permitted on 70 cm

3. - T1C14

Who may select a vanity call sign for a club station?

Select	Answer
A	Any member of the club
B	Only the person named as trustee on the club station license grant
C	Any officer of the club
D	Any Extra Class member of the club

4. - T1D11

When may an amateur station transmit without identifying?

Select	Answer
A	When transmitting signals to control a model craft
B	When the transmissions are of a brief nature to make station adjustments
C	When the transmitted power level is below 1 watt
D	When the transmissions are unmodulated

5. - T1E11

Who does the FCC presume to be the control operator of an amateur station, unless documentation to the contrary is in the station records?

Select	Answer
A	The third party participant
B	The station licensee
C	The station custodian
D	The person operating the station equipment

6. - T1F07

Which of the following restrictions apply when a non-licensed person is allowed to speak to a foreign station using a station under the control of a Technician Class control operator?

Select	Answer
A	The foreign station must be one with which the U.S. has a third party agreement
B	The licensed control operator must do the station identification
C	All of these choices are correct
D	The person must be a U.S. citizen

7. - T2A12

Which of the following is a guideline to use when choosing an operating frequency for calling CQ?

Select	Answer
A	Ask if the frequency is in use
B	Make sure you are in your assigned band
C	Listen first to be sure that no one else is using the frequency
D	All of these choices are correct

8. - T2B08

Which of the following applies when two stations transmitting on the same frequency interfere with each other?

Select	Answer
A	Common courtesy should prevail, but no one has absolute right to an amateur frequency
B	Whoever has the strongest signal has priority on the frequency
C	The station which has the weakest signal has priority on the frequency
D	Whoever has been on the frequency the longest has priority on the frequency

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	Connect the battery in parallel with a vehicles battery and run the engine
C	Add acid to the battery
D	Cool the battery in ice for several hours

10. - T3A10

What may occur if data signals propagate over multiple paths?

Select	Answer
A	Transmission rates must be decreased by a factor equal to the number of separate paths observed
B	Transmission rates can be increased 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. - T3B05

How does the wavelength of a radio wave relate to its frequency?

Select	Answer
A	The wavelength gets longer as the frequency increases
B	The wavelength depends on the bandwidth of the signal
C	The wavelength gets shorter as the frequency increases
D	There is no relationship between wavelength and frequency

12. - T3C03

What is a characteristic of VHF signals received via auroral reflection?

Select	Answer
A	Signals from distances of 10,000 or more miles are common
B	These types of signals are generally strongest when your antenna is aimed west
C	These types of signals occur only during winter nighttime hours
D	The signals exhibit rapid fluctuations of strength and often sound distorted

13. - T4A10

What is the source of a high-pitched whine that varies with engine speed in a mobile transceivers receive audio?

Select	Answer
A	Anti-lock braking system controllers
B	The alternator
C	The ignition system
D	The electric fuel pump

14. - T4B12

What is the function of automatic gain control or AGC?

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

15. - T5A12

What term describes the number of times per second that an alternating current reverses direction?

Select	Answer
A	Frequency
B	Wavelength
C	Speed
D	Pulse rate

16. - T5B13

If a frequency readout shows a reading of 2425 MHz, what frequency is that in GHz?

Select	Answer
A	2425 GHz
B	24.25 GHz
C	0.002425 GHZ
D	2.425 GHz

17. - T5C09

How much power is being used in a circuit when the applied voltage is 13.8 volts DC and the current is 10 amperes?

Select	Answer
A	3.8 watts
B	23.8 watts
C	0.7 watts
D	138 watts

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	30 ohms
B	270 ohms
C	93 ohms
D	3 ohms

19. - T6A04

What electrical component stores energy in an electric field?

Select	Answer
A	Capacitor
B	Diode
C	Resistor
D	Inductor

20. - T6B03

Which of these components can be used as an electronic switch or amplifier?

Select	Answer
A	Oscillator
B	Voltmeter
C	Transistor
D	Potentiometer

21. - T6C05

What is component 4 in figure T1?

Select	Answer
A	Battery
B	Ground symbol
C	Resistor
D	Transistor

22. - T6D07

Which of the following is commonly used as a visual indicator?

Select	Answer
A	FET
B	LED
C	Bipolar transistor
D	Zener diode

23. - T7A03

Which of the following is used to convert a radio signal from one frequency to another?

Select	Answer
A	Phase splitter
B	Amplifier
C	Mixer
D	Inverter

24. - T7B07

Which of the following may be useful in correcting a radio frequency interference problem?

Select	Answer
A	Snap-on ferrite chokes
B	Band-reject and band-pass filters
C	Low-pass and high-pass filters
D	All of these choices are correct

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 signal to noise ratio of your receiver
C	To improve the radiation from your antenna
D	To prevent the radiation of signals when making tests

26. - T7D04

Which instrument is used to measure electric current?

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

27. - T8A03

Which type of voice mode is most often used for long-distance (weak signal) contacts on the VHF and UHF bands?

Select	Answer
A	PM
B	FM
C	SSB
D	DRM

28. - T8B06

Which of the following are inputs to a satellite tracking program?

Select	Answer
A	The Keplerian elements
B	All of these answers are correct
C	The weight of the satellite
D	The last observed time of zero Doppler shift

29. - T8C07

What is the maximum power allowed when transmitting telecommand signals to radio controlled models?

Select	Answer
A	500 milliwatts
B	1500 watts
C	1 watt
D	25 watts

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

31. - T9A05

How would you change a dipole antenna to make it resonant on a higher frequency?

Select	Answer
A	Shorten it
B	Lengthen it
C	Insert coils in series with radiating wires
D	Add capacitive loading to the ends of the radiating wires

32. - T9B08

Why should coax connectors exposed to the weather be sealed against water intrusion?

Select	Answer
A	All of these choices are correct
B	To keep the jacket from becoming loose
C	To prevent interference to telephones
D	To prevent an increase in feed line loss

33. - T0A08

What safety equipment should always be included in home-built equipment that is powered from 120V AC power circuits?

Select	Answer
A	A fuse or circuit breaker in series with the AC hot conductor
B	An inductor in series with the AC power source
C	A capacitor across the AC power source
D	An AC voltmeter across the incoming power source

34. - T0B07

Which of the following is an important safety rule to remember when using a crank-up tower?

Select	Answer
A	This type of tower must never be grounded
B	This type of tower must never be climbed unless it is in the fully retracted position
C	All of these choices are correct
D	This type of tower must never be painted

35. - T0C09

How can you make sure your station stays in compliance with RF safety regulations?

Select	Answer
A	All of these choices are correct
B	By making sure your antennas have low SWR
C	By re-evaluating the station whenever an item of equipment is changed
D	By informing the FCC of any changes made in your station

Figure T1