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. - T1A08

Which of the following entities recommends transmit/receive channels and other parameters for auxiliary and repeater stations?

Select	Answer
A	International Telecommunications Union
B	FCC Regional Field Office
C	Frequency Coordinator
D	Frequency Spectrum Manager

2. - T1B06

Which 23 cm frequency is authorized to a Technician Class licensee?

Select	Answer
A	3390 MHz
B	1296 MHz
C	2315 MHz
D	146.52 MHz

3. - T1C14

Who may select a vanity call sign for a club station?

Select	Answer
A	Any member of the club
B	Only the person named as trustee on the club station license grant
C	Any Extra Class member of the club
D	Any officer of the club

4. - T1D04

What is the only time an amateur station is authorized to transmit music?

Select	Answer
A	When the music produces no spurious emissions
B	When incidental to an authorized retransmission of manned spacecraft communications
C	When the purpose is to interfere with an illegal transmission
D	When the music is transmitted above 1280 MHz

5. - T1E09

What type of control is being used when the control operator is at the control point?

Select	Answer
A	Unattended control
B	Local control
C	Automatic control
D	Radio control

6. - T1F10

Who is accountable should a repeater inadvertently retransmit communications that violate the FCC rules?

Select	Answer
A	The control operator of the repeater
B	Both the originating station and the repeater owner
C	The control operator of the originating station
D	The owner of the repeater

7. - T2A11

Which of the following is an FCC rule regarding power levels used in the amateur bands, under normal, non-distress circumstances?

Select	Answer
A	There is no limit to power as long as there is no interference with other services
B	While not exceeding the maximum power permitted on a given band, use the minimum power necessary to carry out the desired communication
C	No more than 200 watts PEP may be used
D	Up to 1500 watts PEP may be used on any amateur frequency without restriction

8. - T2B05

What determines the amount of deviation of an FM (as opposed to PM) signal?

Select	Answer
A	Both the frequency and amplitude of the modulating signal
B	The amplitude of the modulating signal
C	The frequency of the modulating signal
D	The relative phase of the modulating signal and the carrier

9. - T2C02

What is one way to recharge a 12-volt lead-acid station battery if the commercial power is out?

Select	Answer
A	Add acid to the battery
B	Connect the battery in parallel with a vehicles battery and run the engine
C	Cool the battery in ice for several hours
D	All of these choices are correct

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

11. - T3B07

What property of radio waves is often used to identify the different frequency bands?

Select	Answer
A	The voltage standing wave ratio of waves
B	The approximate wavelength
C	The magnetic intensity of waves
D	The time it takes for waves to travel one mile

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

13. - T4A05

Where should an in-line SWR meter be connected to monitor the standing wave ratio of the station antenna system?

Select	Answer
A	In series with the station's ground
B	In series with the feed line, between the transmitter and antenna
C	In parallel with the push-to-talk line and the antenna
D	In series with the power supply cable, as close as possible to the radio

14. - T4B09

Which of the following is an appropriate receive filter bandwidth to select in order to minimize noise and interference for SSB reception?

Select	Answer
A	2400 Hz
B	1000 Hz
C	500 Hz
D	5000 Hz

15. - T5A07

Which of the following is a good electrical conductor?

Select	Answer
A	Wood
B	Rubber
C	Glass
D	Copper

16. - T5B04

How many volts are equal to one microvolt?

Select	Answer
A	One one-millionth of a volt
B	One million volts
C	One one-thousandth of a volt
D	One thousand kilovolts

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. - T5D03

What formula is used to calculate resistance in a circuit?

Select	Answer
A	Resistance (R) equals voltage (E) minus current (I)
B	Resistance (R) equals voltage (E) multiplied by current (I)
C	Resistance (R) equals voltage (E) added to current (I)
D	Resistance (R) equals voltage (E) divided by current (I)

19. - T6A02

What type of component is often used as an adjustable volume control?

Select	Answer
A	Power resistor
B	Fixed resistor
C	Transformer
D	Potentiometer

20. - T6B04

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

Select	Answer
A	Pentagrid converter
B	Triode
C	Transistor
D	Alternator

21. - T6C10

What is component 3 in figure T3?

Select	Answer
A	Variable inductor
B	Connector
C	Meter
D	Variable capacitor

22. - T6D10

What is the function of component 2 in Figure T1?

Select	Answer
A	Give off light when current flows through it
B	Control the flow of current
C	Convert electrical energy into radio waves
D	Supply electrical energy

23. - T7A01

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

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

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

25. - T7C11

What is a disadvantage of air core coaxial cable when compared to foam or solid dielectric types?

Select	Answer
A	It cannot be used at below freezing temperatures
B	It cannot be used for VHF or UHF antennas
C	It requires special techniques to prevent water absorption
D	It has more loss per foot

26. - T7D08

Which of the following types of solder is best for radio and electronic use?

Select	Answer
A	Aluminum solder
B	Acid-core solder
C	Silver solder
D	Rosin-core solder

27. - T8A10

What is the typical bandwidth of analog fast-scan TV transmissions on the 70 cm band?

Select	Answer
A	About 3 MHz
B	About 1 MHz
C	More than 10 MHz
D	About 6 MHz

28. - T8B06

Which of the following are inputs to a satellite tracking program?

Select	Answer
A	The Keplerian elements
B	The weight of the satellite
C	All of these answers are correct
D	The last observed time of zero Doppler shift

29. - T8C03

What popular operating activity involves contacting as many stations as possible during a specified period of time?

Select	Answer
A	Simulated emergency exercises
B	Contesting
C	Public service events
D	Net operations

30. - T8D09

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

Select	Answer
A	Baudot
B	Gray
C	International Morse
D	Hamming

31. - T9A03

Which of the following describes a simple dipole mounted so the conductor is parallel to the Earth's surface?

Select	Answer
A	A vertically polarized antenna
B	A ground wave antenna
C	A rhombic antenna
D	A horizontally polarized antenna

32. - T9B09

What might cause erratic changes in SWR readings?

Select	Answer
A	A loose connection in an antenna or a feed line
B	The transmitter is being over-modulated
C	The transmitter is being modulated
D	Interference from other stations is distorting your signal

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	Circulating currents inside the transformer might cause damage
C	The fuse might blow if you remove the cover
D	Static electricity could damage the grounding system

34. - T0B02

What is a good precaution to observe before climbing an antenna tower?

Select	Answer
A	Remove all tower grounding connections
B	Put on a climbing harness and safety glasses
C	All of the these choices are correct
D	Make sure that you wear a grounded wrist strap

35. - T0C02

Which of the following frequencies has the lowest value for Maximum Permissible Exposure limit?

Select	Answer
A	1296 MHz
B	440 MHz
C	3.5 MHz
D	50 MHz

Figure T3

Figure T1