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. - T1A14

What must you do if you are operating on the 23 cm band and learn that you are interfering with a radiolocation station outside the United States?

Select	Answer
A	Nothing, because this band is allocated exclusively to the amateur service
B	Change to CW mode, because this would not likely cause interference
C	Establish contact with the radiolocation station and ask them to change frequency
D	Stop operating or take steps to eliminate the harmful interference

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

3. - T1C01

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

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

4. - T1D08

In which of the following circumstances may the control operator of an amateur station receive compensation for operating the station?

Select	Answer
A	When re-broadcasting weather alerts during a RACES net
B	When the communication is incidental to classroom instruction at an educational institution
C	When engaging in communications on behalf of their employer
D	When notifying other amateur operators of the availability for sale or trade of apparatus

5. - T1E07

When the control operator is not the station licensee, who is responsible for the proper operation of the station?

Select	Answer
A	Only the station licensee
B	The control operator and the station licensee are equally responsible
C	Only the control operator
D	All licensed amateurs who are present at the operation

6. - T1F03

When is an amateur station required to transmit its assigned call sign?

Select	Answer
A	At the beginning of each contact, and every 10 minutes thereafter
B	At least once during each transmission
C	At least every 15 minutes during and at the end of a communication
D	At least every 10 minutes during and at the end of a communication

7. - T2A10

What is a band plan, beyond the privileges established by the FCC?

Select	Answer
A	A plan devised by a club to indicate frequency band usage
B	A voluntary guideline for using different modes or activities within an amateur band
C	A mandated list of operating schedules
D	A list of scheduled net frequencies

8. - T2B09

Which of the following methods is encouraged by the FCC when identifying your station when using phone?

Select	Answer
A	Use of a phonetic alphabet
B	Send your call sign in CW as well as voice
C	Repeat your call sign three times
D	Increase your signal to full power when identifying

9. - T2C10

What is the preamble in a formal traffic message?

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

10. - T3A01

What should you do if another operator reports that your stations 2 meter signals were strong just a moment ago, but now they are weak or distorted?

Select	Answer
A	Ask the other operator to adjust his squelch control
B	Turn on the CTCSS tone
C	Try moving a few feet or changing the direction of your antenna if possible, as reflections may be causing multi-path distortion
D	Change the batteries in your radio to a different type

11. - T3B03

What are the two components of a radio wave?

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

12. - T3C03

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

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

13. - T4A06

Which of the following would be connected between a transceiver and computer in a packet radio station?

Select	Answer
A	Antenna
B	Transmatch
C	Terminal node controller
D	Mixer

14. - T4B02

Which of the following can be used to enter the operating frequency on a modern transceiver?

Select	Answer
A	The keypad or VFO knob
B	All of these choices are correct
C	The CTCSS or DTMF encoder
D	The Automatic Frequency Control

15. - T5A09

What is the name for a current that reverses direction on a regular basis?

Select	Answer
A	Alternating current
B	Vertical current
C	Circular current
D	Direct current

16. - T5B12

Which of the following frequencies is equal to 28,400 kHz?

Select	Answer
A	2.800 MHz
B	28.400 MHz
C	284.00 MHz
D	28.400 kHz

17. - T5C05

What is the unit of frequency?

Select	Answer
A	Farad
B	Hertz
C	Henry
D	Tesla

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	270 ohms
B	30 ohms
C	3 ohms
D	93 ohms

19. - T6A07

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

Select	Answer
A	Inductor
B	Diode
C	Switch
D	Capacitor

20. - T6B04

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

Select	Answer
A	Pentagrid converter
B	Alternator
C	Triode
D	Transistor

21. - T6C06

What is component 6 in figure T2?

Select	Answer
A	Capacitor
B	Transistor
C	Resistor
D	Regulator IC

22. - T6D11

What is a simple resonant or tuned circuit?

Select	Answer
A	A resistor circuit used for reducing standing wave ratio
B	A type of voltage regulator
C	An inductor and a capacitor connected in series or parallel to form a filter
D	A circuit designed to provide high fidelity audio

23. - T7A01

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

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

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

25. - T7C08

What instrument other than an SWR meter could you use to determine if a feed line and antenna are properly matched?

Select	Answer
A	Ohmmeter
B	Iambic pentameter
C	Directional wattmeter
D	Voltmeter

26. - T7D06

Which of the following might damage a multimeter?

Select	Answer
A	Measuring a voltage too small for the chosen scale
B	Leaving the meter in the milliamps position overnight
C	Attempting to measure voltage when using the resistance setting
D	Not allowing it to warm up properly

27. - T8A06

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

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

28. - T8B02

How much transmitter power should be used on the uplink frequency of an amateur satellite or space station?

Select	Answer
A	The minimum amount of power needed to complete the contact
B	The maximum power of your transmitter
C	No more than half the rating of your linear amplifier
D	Never more than 1 watt

29. - T8C05

What is a grid locator?

Select	Answer
A	An instrument for neutralizing a final amplifier
B	A letter-number designator assigned to a geographic location
C	A letter-number designator assigned to an azimuth and elevation
D	An instrument for radio direction finding

30. - T8D09

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

Select	Answer
A	Hamming
B	Baudot
C	International Morse
D	Gray

31. - T9A02

Which of the following is true regarding vertical antennas?

Select	Answer
A	The electric field is perpendicular to the Earth
B	The phase is inverted
C	The phase is reversed
D	The magnetic field is perpendicular to the Earth

32. - T9B02

What is the impedance of the most commonly used coaxial cable in typical amateur radio installations?

Select	Answer
A	12 ohms
B	50 ohms
C	8 ohms
D	600 ohms

33. - T0A04

What is the purpose of a fuse in an electrical circuit?

Select	Answer
A	All of these choices are correct
B	To interrupt power in case of overload
C	To limit current to prevent shocks
D	To prevent power supply ripple from damaging a circuit

34. - T0B10

Which of the following is true concerning grounding conductors used for lightning protection?

Select	Answer
A	Wires must be carefully routed with precise right-angle bends
B	Only non-insulated wire must be used
C	Common grounds must be avoided
D	Sharp bends must be avoided

35. - T0C03

What is the maximum power level that an amateur radio station may use at VHF frequencies before an RF exposure evaluation is required?

Select	Answer
A	50 watts PEP at the antenna
B	1 watt forward power
C	1500 watts PEP transmitter output
D	50 watts PEP reflected power

Figure T2