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. - T1A11

When is willful interference to other amateur radio stations permitted?

Select	Answer
A	Only if the station being interfered with is expressing extreme religious or political views
B	At no time
C	Only during a contest
D	At any time, amateurs are not protected from willful interference

2. - T1B13

Which emission may be used between 219 and 220 MHz?

Select	Answer
A	Spread spectrum
B	SSB voice
C	Fast-scan television
D	Data

3. - T1C09

What is the grace period following the expiration of an amateur license within which the license may be renewed?

Select	Answer
A	Ten years
B	Five years
C	Two years
D	Three years

4. - T1D06

What, if any, are the restrictions concerning transmission of language that may be considered indecent or obscene?

Select	Answer
A	The FCC maintains a list of words that are not permitted to be used on amateur frequencies
B	There is no such prohibition
C	Any such language is prohibited
D	The ITU maintains a list of words that are not permitted to be used on amateur frequencies

5. - T1E12

When, under normal circumstances, may a Technician Class licensee be the control operator of a station operating in an exclusive Extra Class operator segment of the amateur bands?

Select	Answer
A	When using a club station whose trustee is an Extra Class operator licensee
B	At no time
C	As part of a multi-operator contest team
D	When operating a special event station

6. - T1F13

When must the station licensee make the station and its records available for FCC inspection?

Select	Answer
A	Only after failing to comply with an FCC notice of violation
B	At any time ten days after notification by the FCC of such an inspection
C	At any time upon request by an FCC representative
D	Only when presented with a valid warrant by an FCC official or government agent

7. - T2A10

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

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

8. - T2B03

Which of the following describes the muting of receiver audio controlled solely by the presence or absence of an RF signal?

Select	Answer
A	CTCSS
B	Tone squelch
C	Carrier squelch
D	Modulated carrier

9. - T2C12

What is the Amateur Radio Emergency Service (ARES)?

Select	Answer
A	A training program that certifies amateur operators for membership in the Radio Amateur Civil Emergency Service
B	Licensed amateurs who have voluntarily registered their qualifications and equipment for communications duty in the public service
C	Licensed amateurs who are members of the military and who voluntarily agreed to provide message handling services in the case of an emergency
D	A training program that provides licensing courses for those interested in obtaining an amateur license to use during emergencies

10. - T3A11

Which part of the atmosphere enables the propagation of radio signals around the world?

Select	Answer
A	The stratosphere
B	The magnetosphere
C	The troposphere
D	The ionosphere

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 multiplied by 300
C	Wavelength in meters equals frequency in hertz divided by 300
D	Wavelength in meters equals 300 divided by frequency in megahertz

12. - T3C01

Why are direct (not via a repeater) UHF signals rarely heard from stations outside your local coverage area?

Select	Answer
A	UHF signals are usually not reflected by the ionosphere
B	They collide with trees and shrubbery and fade out
C	FCC regulations prohibit them from going more than 50 miles
D	They are too weak to go very far

13. - T4A06

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

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

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 adjust the automatic gain control
D	To mute receiver output noise when no signal is being received

15. - T5A06

How much voltage does a mobile transceiver usually require?

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

16. - T5B09

What is the approximate amount of change, measured in decibels (dB), of a power increase from 5 watts to 10 watts?

Select	Answer
A	5 dB
B	2 dB
C	3 dB
D	10 dB

17. - T5C05

What is the unit of frequency?

Select	Answer
A	Farad
B	Tesla
C	Hertz
D	Henry

18. - T5D09

What is the current flowing through a 24-ohm resistor connected across 240 volts?

Select	Answer
A	10 amperes
B	216 amperes
C	24,000 amperes
D	0.1 amperes

19. - T6A09

What electrical component is used to protect other circuit components from current overloads?

Select	Answer
A	Capacitor
B	Fuse
C	All of these choices are correct
D	Inductor

20. - T6B07

What does the abbreviation LED stand for?

Select	Answer
A	Liquid Emission Detector
B	Light Emitting Diode
C	Long Echo Delay
D	Low Emission Diode

21. - T6C08

What is component 9 in figure T2?

Select	Answer
A	Variable transformer
B	Variable inductor
C	Variable capacitor
D	Variable resistor

22. - T6D12

Which of the following is a common reason to use shielded wire?

Select	Answer
A	To prevent coupling of unwanted signals to or from the wire
B	To couple the wire to other signals
C	To increase the current carrying capability of the wire
D	To decrease the resistance of DC power connections

23. - T7A11

Where is an RF preamplifier installed?

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

24. - T7B05

How can overload of a non-amateur radio or TV receiver by an amateur signal be reduced or eliminated?

Select	Answer
A	Block the interfering signal with a filter on the amateur transmitter
B	Switch the transmitter from FM to SSB
C	Switch the transmitter to a narrow-band mode
D	Block the amateur signal with a filter at the antenna input of the affected receiver

25. - T7C06

What does an SWR reading of 4:1 indicate?

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

26. - T7D04

Which instrument is used to measure electric current?

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

27. - T8A06

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

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

28. - T8B04

Which amateur stations may make contact with an amateur station on the International Space Station using 2 meter and 70 cm band amateur radio frequencies?

Select	Answer
A	You cannot talk to the ISS on amateur radio frequencies
B	Any amateur holding a Technician or higher class license
C	Only the astronaut's family members who are hams
D	Only members of amateur radio clubs at NASA facilities

29. - T8C05

What is a grid locator?

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

30. - T8D04

What type of transmission is indicated by the term NTSC?

Select	Answer
A	A frame compression scheme for TV signals
B	A Normal Transmission mode in Static Circuit
C	An analog fast scan color TV signal
D	A special mode for earth satellite uplink

31. - T9A02

Which of the following is true regarding vertical antennas?

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

32. - T9B03

Why is coaxial cable used more often than any other feed line for amateur radio antenna systems?

Select	Answer
A	It can handle more power than any other type of feed line
B	It is less expensive than any other types of feed line
C	It has less loss than any other type of feed line
D	It is easy to use and requires few special installation considerations

33. - T0A11

What kind of hazard might exist in a power supply when it is turned off and disconnected?

Select	Answer
A	You might receive an electric shock from the charged stored in large capacitors
B	The fuse might blow if you remove the cover
C	Circulating currents inside the transformer might cause damage
D	Static electricity could damage the grounding system

34. - T0B03

Under what circumstances is it safe to climb a tower without a helper or observer?

Select	Answer
A	When no mechanical work is being performed
B	When no electrical work is being performed
C	Never
D	When the work being done is not more than 20 feet above the ground

35. - T0C09

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

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

Figure T2