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

2. - T1B09

Why should you not set your transmit frequency to be exactly at the edge of an amateur band or sub-band?

Select	Answer
A	All of these choices are correct
B	To allow for calibration error in the transmitter frequency display
C	To allow for transmitter frequency drift
D	So that modulation sidebands do not extend beyond the band edge

3. - T1C12

Who may select a desired call sign under the vanity call sign rules?

Select	Answer
A	Only licensed amateurs with general or extra class licenses
B	Any licensed amateur
C	Only an amateur licensee who has been licensed continuously for more than 10 years
D	Only licensed amateurs with an extra class license

4. - T1D12

Under which of the following circumstances may an amateur radio station engage in broadcasting?

Select	Answer
A	When transmitting code practice, information bulletins, or transmissions necessary to provide emergency communications
B	Under no circumstances
C	At any time as long as the material being transmitted did not originate from a commercial broadcast station
D	At any time as long as no music is transmitted

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

6. - T1F08

Which indicator is required by the FCC to be transmitted after a station call sign?

Select	Answer
A	/ followed the FCC Region number when operating out of the region in which the license was issued
B	/R when operating a repeater
C	/KT, /AE or /AG when using new license privileges earned by CSCE while waiting for an upgrade to a previously issued license to appear in the FCC license database
D	/M when operating mobile

7. - T2A07

Which of the following is true when making a test transmission?

Select	Answer
A	Station identification is required at least every ten minutes during the test and at the end of the test
B	Station identification is not required if the transmission is less than 1 watt
C	Station identification is not required if the transmission is less than 15 seconds
D	Station identification is only required once an hour when the transmissions are for test purposes only

8. - T2B02

What is the term used to describe the use of a sub-audible tone transmitted with normal voice audio to open the squelch of a receiver?

Select	Answer
A	CTCSS
B	DTMF
C	Carrier squelch
D	Tone burst

9. - T2C12

What is the Amateur Radio Emergency Service (ARES)?

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

10. - T3A03

What antenna polarization is normally used for long-distance weak-signal CW and SSB contacts using the VHF and UHF bands?

Select	Answer
A	Left-hand circular
B	Vertical
C	Right-hand circular
D	Horizontal

11. - T3B11

What is the approximate velocity of a radio wave as it travels through free space?

Select	Answer
A	3000 kilometers per second
B	300,000 miles per hour
C	300,000,000 meters per second
D	186,000 miles per hour

12. - T3C11

Why do VHF and UHF radio signals usually travel somewhat farther than the visual line of sight distance between two stations?

Select	Answer
A	Radio waves are not blocked by dust particles
B	Radio waves are blocked by dust particles
C	The Earth seems less curved to radio waves than to light
D	Radio signals move somewhat faster than the speed of light

13. - T4A07

How is a computers sound card used when conducting digital communications using a computer?

Select	Answer
A	The sound card records the audio frequency for video display
B	The sound card communicates between the computer CPU and the video display
C	All of these choices are correct
D	The sound card provides audio to the microphone input and converts received audio to digital form

14. - T4B08

What is the advantage of having multiple receive bandwidth choices on a multimode transceiver?

Select	Answer
A	Increases the amount of offset between receive and transmit frequencies
B	Increases the number of frequencies that can be stored in memory
C	Permits monitoring several modes at once
D	Permits noise or interference reduction by selecting a bandwidth matching the mode

15. - T5A07

Which of the following is a good electrical conductor?

Select	Answer
A	Copper
B	Rubber
C	Glass
D	Wood

16. - T5B10

What is the approximate amount of change, measured in decibels (dB), of a power decrease from 12 watts to 3 watts?

Select	Answer
A	-6 dB
B	-9 dB
C	-1 dB
D	-3 dB

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	23.8 watts
B	3.8 watts
C	138 watts
D	0.7 watts

18. - T5D05

What is the resistance in a circuit for which the applied voltage is 12 volts and the current flow is 1.5 amperes?

Select	Answer
A	0.125 ohms
B	18 ohms
C	8 ohms
D	13.5 ohms

19. - T6A09

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

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

20. - T6B05

Which of the following electronic components can amplify signals?

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

21. - T6C06

What is component 6 in figure T2?

Select	Answer
A	Capacitor
B	Regulator IC
C	Resistor
D	Transistor

22. - T6D04

Which of the following can be used to display signal strength on a numeric scale?

Select	Answer
A	Transistor
B	Potentiometer
C	Relay
D	Meter

23. - T7A09

Which of the following devices is most useful for VHF weak-signal communication?

Select	Answer
A	A mobile VHF FM transceiver
B	A multi-mode VHF transceiver
C	An omni-directional antenna
D	A quarter-wave vertical antenna

24. - T7B12

What might be the first step to resolve cable TV interference from your ham radio transmission?

Select	Answer
A	Add a preamplifier to the TV antenna input
B	Add a low pass filter to the TV antenna input
C	Be sure all TV coaxial connectors are installed properly
D	Add a high pass filter to the TV antenna input

25. - T7C01

What is the primary purpose of a dummy load?

Select	Answer
A	To prevent the radiation of signals when making tests
B	To prevent over-modulation of your transmitter
C	To improve the radiation from your antenna
D	To improve the signal to noise ratio of your receiver

26. - T7D12

Which of the following precautions should be taken when measuring high voltages with a voltmeter?

Select	Answer
A	Ensure that the voltmeter is set to the correct frequency
B	Ensure that the voltmeter has very low impedance
C	Ensure that the circuit is grounded through the voltmeter
D	Ensure that the voltmeter and leads are rated for use at the voltages to be measured

27. - T8A07

What is the primary advantage of single sideband over FM for voice transmissions?

Select	Answer
A	SSB signals are less susceptible to interference
B	SSB signals are easier to tune
C	SSB signals have narrower bandwidth
D	All of these choices are correct

28. - T8B10

What do the initials LEO tell you about an amateur satellite?

Select	Answer
A	The satellite is in a Low Earth Orbit
B	The satellite uses Light Emitting Optics
C	The satellite is performing a Lunar Ejection Orbit maneuver
D	The satellite battery is in Low Energy Operation mode

29. - T8C05

What is a grid locator?

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

30. - T8D08

Which of the following may be included in packet transmissions?

Select	Answer
A	Automatic repeat request in case of error
B	All of these choices are correct
C	A check sum which permits error detection
D	A header which contains the call sign of the station to which the information is being sent

31. - T9A07

What is a good reason not to use a rubber duck antenna inside your car?

Select	Answer
A	Signals can be significantly weaker than when it is outside of the vehicle
B	The SWR might decrease, decreasing the signal strength
C	All of these choices are correct
D	It might cause your radio to overheat

32. - T9B07

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

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

33. - T0A01

Which of the following is a safety hazard of a 12-volt storage battery?

Select	Answer
A	Shorting the terminals can cause burns, fire, or an explosion
B	RF emissions from the battery
C	Touching both terminals with the hands can cause electrical shock
D	All of these choices are correct

34. - T0B10

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

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

35. - T0C10

Why is duty cycle one of the factors used to determine safe RF radiation exposure levels?

Select	Answer
A	It affects the peak exposure of people to radiation
B	It takes into account the antenna feed line loss
C	It affects the average exposure of people to radiation
D	It takes into account the thermal effects of the final amplifier

Figure T2