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. - T1A04

Which of the following meets the FCC definition of harmful interference?

Select	Answer
A	Radio transmissions that annoy users of a repeater
B	Unwanted radio transmissions that cause costly harm to radio station apparatus
C	That which seriously degrades, obstructs, or repeatedly interrupts a radio communication service operating in accordance with the Radio Regulations
D	Static from lightning storms

2. - T1B05

Which 70 cm frequency is authorized to a Technician Class license holder operating in ITU Region 2?

Select	Answer
A	443.350 MHz
B	53.350 MHz
C	222.520 MHz
D	146.520 MHz

3. - T1C10

How soon after passing the examination for your first amateur radio license may you operate a transmitter on an amateur service frequency?

Select	Answer
A	As soon as your operator/station license grant appears in the FCCs license database
B	You must wait until you receive your license in the mail from the FCC
C	Immediately
D	30 days after the test date

4. - T1D06

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

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

5. - T1E06

Under what type of control do APRS network digipeaters operate?

Select	Answer
A	Manual
B	Remote
C	Automatic
D	Local

6. - T1F06

Which of the following formats of a self-assigned indicator is acceptable when identifying using a phone transmission?

Select	Answer
A	KL7CC slant W3
B	All of these choices are correct
C	KL7CC stroke W3
D	KL7CC slash W3

7. - T2A07

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

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

8. - T2B13

Which of the following is true of the use of SSB phone in amateur bands above 50 MHz?

Select	Answer
A	It is permitted only on repeaters
B	It is permitted only on when power is limited to no more than 100 watts
C	It is permitted in at least some portion of all the amateur bands above 50 MHz
D	It is permitted only by holders of a General Class or higher license

9. - T2C06

Which of the following is an accepted practice to get the immediate attention of a net control station when reporting an emergency?

Select	Answer
A	Begin your transmission by saying "Priority" or "Emergency" followed by your call sign
B	Press the push-to-talk button three times
C	Repeat the words SOS three times followed by the call sign of the reporting station
D	Play a pre-recorded emergency alert tone followed by your call sign

10. - T3A11

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

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

11. - T3B09

What are the frequency limits of the UHF spectrum?

Select	Answer
A	30 to 300 kHz
B	300 to 3000 MHz
C	300 to 3000 kHz
D	30 to 300 MHz

12. - T3C12

Which of the following bands may provide long distance communications during the peak of the sunspot cycle?

Select	Answer
A	Six or ten meters
B	All of these choices are correct
C	23 centimeters
D	70 centimeters or 1.25 meters

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

15. - T5A07

Which of the following is a good electrical conductor?

Select	Answer
A	Rubber
B	Copper
C	Wood
D	Glass

16. - T5B13

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

Select	Answer
A	2.425 GHz
B	24.25 GHz
C	0.002425 GHZ
D	2425 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	23.8 watts
B	138 watts
C	3.8 watts
D	0.7 watts

18. - T5D12

What is the voltage across a 10-ohm resistor if a current of 2 amperes flows through it?

Select	Answer
A	20 volts
B	8 volts
C	0.2 volts
D	12 volts

19. - T6A08

What electrical component is used to connect or disconnect electrical circuits?

Select	Answer
A	Magnetron
B	All of these choices are correct
C	Switch
D	Thermistor

20. - T6B07

What does the abbreviation LED stand for?

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

21. - T6C01

What is the name for standardized representations of components in an electrical wiring diagram?

Select	Answer
A	Component callouts
B	Electrical depictions
C	Schematic symbols
D	Grey sketch

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. - T7A09

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

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

24. - T7B09

What is a Part 15 device?

Select	Answer
A	A type of amateur radio that can legally be used in the citizens band
B	An unlicensed device that may emit low powered radio signals on frequencies used by a licensed service
C	A type of test set used to determine whether a transmitter is in compliance with FCC regulation 91.15
D	A device for long distance communications using special codes sanctioned by the International Amateur Radio Union

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. - T7D07

Which of the following measurements are commonly made using a multimeter?

Select	Answer
A	Signal strength and noise
B	SWR and RF power
C	Voltage and resistance
D	Impedance and reactance

27. - T8A02

What type of modulation is most commonly used for VHF packet radio transmissions?

Select	Answer
A	AM
B	FM
C	SSB
D	Spread Spectrum

28. - T8B09

What causes spin fading when referring to satellite signals?

Select	Answer
A	Interfering signals within the satellite uplink band
B	Rotation of the satellite and its antennas
C	Doppler shift of the received signal
D	Circular polarized noise interference radiated from the sun

29. - T8C01

Which of the following methods is used to locate sources of noise interference or jamming?

Select	Answer
A	Doppler radar
B	Echolocation
C	Phase locking
D	Radio direction finding

30. - T8D06

What does the abbreviation PSK mean?

Select	Answer
A	Pulse Shift Keying
B	Phase Shift Keying
C	Phased Slide Keying
D	Packet Short Keying

31. - T9A02

Which of the following is true regarding vertical antennas?

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

32. - T9B07

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

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

33. - T0A01

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

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

34. - T0B11

Which of the following establishes grounding requirements for an amateur radio tower or antenna?

Select	Answer
A	FAA tower lighting regulations
B	Underwriters Laboratories' recommended practices
C	Local electrical codes
D	FCC Part 97 Rules

35. - T0C11

What is the definition of duty cycle during the averaging time for RF exposure?

Select	Answer
A	The percentage of time that a transmitter is transmitting
B	The difference between the PEP and average power output of a transmitter
C	The percentage of time that a transmitter is not transmitting
D	The difference between the lowest power output and the highest power output of a transmitter