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

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

3. - T1C08

What is the normal term for an FCC-issued primary station/operator amateur radio license grant?

Select	Answer
A	Life
B	Five years
C	Ten years
D	Twenty years

4. - T1D09

Under which of the following circumstances are amateur stations authorized to transmit signals related to broadcasting, program production, or news gathering, assuming no other means is available?

Select	Answer
A	Only when broadcasting communications to or from the space shuttle
B	Only where such communications directly relate to the immediate safety of human life or protection of property
C	Only when using amateur repeaters linked to the Internet
D	Only where noncommercial programming is gathered and supplied exclusively to the National Public Radio network

5. - T1E02

Who may a station licensee designate to be the control operator of an amateur station?

Select	Answer
A	Any U.S. citizen or registered alien
B	Only a person for whom an amateur operator/primary station license grant appears in the FCC database or who is authorized for alien reciprocal operation
C	Any family member of the station licensee
D	Any person over the age of 18

6. - T1F12

How many persons are required to be members of a club for a club station license to be issued by the FCC?

Select	Answer
A	A trustee and 2 officers
B	At least 5
C	At least 2
D	At least 4

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	Listen first to be sure that no one else is using the frequency
C	Make sure you are in your assigned band
D	Ask if the frequency is in use

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	Modulated carrier
B	Carrier squelch
C	Tone squelch
D	CTCSS

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	Add acid to the battery
C	Cool the battery in ice for several hours
D	Connect the battery in parallel with a vehicles battery and run the engine

10. - T3A05

When using a directional antenna, how might your station be able to access a distant repeater if buildings or obstructions are blocking the direct line of sight path?

Select	Answer
A	Change from vertical to horizontal polarization
B	Try the long path
C	Try to find a path that reflects signals to the repeater
D	Increase the antenna SWR

11. - T3B11

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

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

12. - T3C01

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

Select	Answer
A	FCC regulations prohibit them from going more than 50 miles
B	UHF signals are usually not reflected by the ionosphere
C	They collide with trees and shrubbery and fade out
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	Terminal node controller
B	Mixer
C	Antenna
D	Transmatch

14. - T4B12

What is the function of automatic gain control or AGC?

Select	Answer
A	To protect an antenna from lightning
B	An asymmetric goniometer control used for antenna matching
C	To keep received audio relatively constant
D	To eliminate RF on the station cabling

15. - T5A11

What is the basic unit of electromotive force?

Select	Answer
A	The watt
B	The ampere
C	The ohm
D	The volt

16. - T5B08

How many microfarads are 1,000,000 picofarads?

Select	Answer
A	1,000,000,000 microfarads
B	1000 microfarads
C	0.001 microfarads
D	1 microfarad

17. - T5C11

How many amperes are flowing in a circuit when the applied voltage is 12 volts DC and the load is 120 watts?

Select	Answer
A	12 amperes
B	10 amperes
C	132 amperes
D	0.1 amperes

18. - T5D07

What is the current flow in a circuit with an applied voltage of 120 volts and a resistance of 80 ohms?

Select	Answer
A	9600 amperes
B	200 amperes
C	1.5 amperes
D	0.667 amperes

19. - T6A11

Which of the following battery types is not rechargeable?

Select	Answer
A	Carbon-zinc
B	Lithium-ion
C	Nickel-cadmium
D	Lead-acid

20. - T6B07

What does the abbreviation LED stand for?

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

21. - T6C08

What is component 9 in figure T2?

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

22. - T6D01

Which of the following devices or circuits changes an alternating current into a varying direct current signal?

Select	Answer
A	Rectifier
B	Reflector
C	Transformer
D	Amplifier

23. - T7A07

What is meant by term PTT?

Select	Answer
A	Pre-transmission tuning to reduce transmitter harmonic emission
B	The push to talk function which switches between receive and transmit
C	A primary transformer tuner use to match antennas
D	Precise tone transmissions used to limit repeater access to only certain signals

24. - T7B02

What would cause a broadcast AM or FM radio to receive an amateur radio transmission unintentionally?

Select	Answer
A	The microphone gain of the transmitter is turned up too high
B	The audio amplifier of the transmitter is overloaded
C	The deviation of an FM transmitter is set too low
D	The receiver is unable to reject strong signals outside the AM or FM band

25. - T7C02

Which of the following instruments can be used to determine if an antenna is resonant at the desired operating frequency?

Select	Answer
A	A frequency counter
B	An antenna analyzer
C	A VTVM
D	A Q meter

26. - T7D02

What is the correct way to connect a voltmeter to a circuit?

Select	Answer
A	In parallel with the circuit
B	In quadrature with the circuit
C	In series with the circuit
D	In phase with the circuit

27. - T8A11

What is the approximate maximum bandwidth required to transmit a CW signal?

Select	Answer
A	150 Hz
B	2.4 kHz
C	1000 Hz
D	15 kHz

28. - T8B11

What is a commonly used method of sending signals to and from a digital satellite?

Select	Answer
A	USB AFSK
B	FM Packet
C	PSK31
D	WSJT

29. - T8C04

Which of the following is good procedure when contacting another station in a radio contest?

Select	Answer
A	All of these choices are correct
B	Be sure to sign only the last two letters of your call if there is a pileup calling the station
C	Send only the minimum information needed for proper identification and the contest exchange
D	Work the station twice to be sure that you are in his log

30. - T8D07

What is PSK31?

Select	Answer
A	A method of reducing noise interference to FM signals
B	A low-rate data transmission mode
C	A method of compressing digital television signals
D	A high-rate data transmission mode

31. - T9A11

What is meant by the gain of an antenna?

Select	Answer
A	The increase in signal strength in a specified direction when compared to a reference antenna
B	The additional power that is lost in the antenna when transmitting on a higher frequency
C	The additional power that is added to the transmitter power
D	The increase in impedance on receive or transmit compared to a reference antenna

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 preferred for microwave operation
D	They are water tight

33. - T0A06

What is a good way to guard against electrical shock at your station?

Select	Answer
A	Use three-wire cords and plugs for all AC powered equipment
B	Connect all AC powered station equipment to a common safety ground
C	Use a circuit protected by a ground-fault interrupter
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	Only non-insulated wire must be used
B	Common grounds must be avoided
C	Wires must be carefully routed with precise right-angle bends
D	Sharp bends must be avoided

35. - T0C08

Which of the following actions might amateur operators take to prevent exposure to RF radiation in excess of FCC-supplied limits?

Select	Answer
A	Relocate antennas
B	All of these choices are correct
C	Increase the duty cycle
D	Relocate the transmitter

Figure T2