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	The local chapter of the Office of National Council of Independent Frequency Coordinators
C	The FCC Office of Spectrum Management and Coordination Policy
D	FCC Regional Field Office

2. - T1B02

Why are the frequency assignments for some U.S. Territories different from those in the 50 U.S. States?

Select	Answer
A	Territorial governments are allowed to select their own frequency allocations
B	Some U. S. Territories are located in ITU regions other than region 2
C	Territorial frequency allocations must also include those of adjacent countries
D	Any territory that was in existence before the ratification of the Communications Act of 1934 is exempt from FCC frequency regulations

3. - T1C05

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

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

4. - T1D11

When may an amateur station transmit without identifying?

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

5. - T1E09

What type of control is being used when the control operator is at the control point?

Select	Answer
A	Radio control
B	Unattended control
C	Local control
D	Automatic control

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

7. - T2A12

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

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

8. - T2B12

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

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

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	Cool the battery in ice for several hours
D	Add acid to the battery

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. - T3B06

What is the formula for converting frequency to approximate wavelength in meters?

Select	Answer
A	Wavelength in meters equals frequency in megahertz divided by 300
B	Wavelength in meters equals frequency in hertz divided by 300
C	Wavelength in meters equals 300 divided by frequency in megahertz
D	Wavelength in meters equals frequency in hertz multiplied by 300

12. - T3C02

Which of the following might be happening when VHF signals are being received from long distances?

Select	Answer
A	Signals are being reflected by lightning storms in your area
B	Signals are arriving by sub-surface ducting
C	Signals are being refracted from a sporadic E layer
D	Signals are being reflected from outer space

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

14. - T4B03

What is the purpose of the squelch control on a transceiver?

Select	Answer
A	To set the transmitter power level
B	To set the highest level of volume desired
C	To mute receiver output noise when no signal is being received
D	To adjust the automatic gain control

15. - T5A03

What is the name for the flow of electrons in an electric circuit?

Select	Answer
A	Voltage
B	Capacitance
C	Current
D	Resistance

16. - T5B01

How many milliamperes is 1.5 amperes?

Select	Answer
A	1,500 milliamperes
B	15,000 milliamperes
C	15 milliamperes
D	150 milliamperes

17. - T5C02

What is the basic unit of capacitance?

Select	Answer
A	The henry
B	The ohm
C	The volt
D	The farad

18. - T5D01

What formula is used to calculate current in a circuit?

Select	Answer
A	Current (I) equals voltage (E) multiplied by resistance (R)
B	Current (I) equals voltage (E) added to resistance (R)
C	Current (I) equals voltage (E) minus resistance (R)
D	Current (I) equals voltage (E) divided by resistance (R)

19. - T6A03

What electrical parameter is controlled by a potentiometer?

Select	Answer
A	Capacitance
B	Resistance
C	Inductance
D	Field strength

20. - T6B12

What is the term that describes a transistor's ability to amplify a signal?

Select	Answer
A	Gain
B	On resistance
C	Forward voltage drop
D	Forward resistance

21. - T6C02

What is component 1 in figure T1?

Select	Answer
A	Transistor
B	Battery
C	Resistor
D	Connector

22. - T6D02

What best describes a relay?

Select	Answer
A	A switch controlled by an electromagnet
B	An optical sensor
C	A pass transistor
D	A current controlled amplifier

23. - T7A01

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

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

24. - T7B01

What can you do if you are told your FM handheld or mobile transceiver is over-deviating?

Select	Answer
A	Let the transceiver cool off
B	Talk farther away from the microphone
C	Talk louder into the microphone
D	Change to a higher power level

25. - T7C13

What does a dummy load consist of?

Select	Answer
A	A high-gain amplifier and a TR switch
B	A 50 ohm reactance used to terminate a transmission line
C	A low voltage power supply and a DC relay
D	A non-inductive resistor and a heat sink

26. - T7D09

What is the characteristic appearance of a cold solder joint?

Select	Answer
A	A greenish tint
B	A bright or shiny surface
C	Dark black spots
D	A grainy or dull surface

27. - T8A09

What is the approximate bandwidth of a VHF repeater FM phone signal?

Select	Answer
A	Between 10 and 15 kHz
B	Between 50 and 125 kHz
C	Less than 500 Hz
D	About 150 kHz

28. - T8B05

What is a satellite beacon?

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

29. - T8C13

What is the Internet Radio Linking Project (IRLP)?

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

30. - T8D09

What code is used when sending CW in the amateur bands?

Select	Answer
A	Baudot
B	Hamming
C	Gray
D	International Morse

31. - T9A12

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

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

32. - T9B04

What does an antenna tuner do?

Select	Answer
A	It allows an antenna to be used on both transmit and receive
B	It matches the antenna system impedance to the transceiver's output impedance
C	It helps a receiver automatically tune in weak stations
D	It automatically selects the proper antenna for the frequency band being used

33. - T0A05

Why is it unwise to install a 20-ampere fuse in the place of a 5-ampere fuse?

Select	Answer
A	The larger fuse would be likely to blow because it is rated for higher current
B	The power supply ripple would greatly increase
C	All of these choices are correct
D	Excessive current could cause a fire

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. - T0C07

What could happen if a person accidentally touched your antenna while you were transmitting?

Select	Answer
A	Touching the antenna could cause television interference
B	All of these choices are correct
C	They might receive a painful RF burn
D	They might develop radiation poisoning

Figure T1