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. - T1A13

What is the FCC Part 97 definition of telecommand?

Select	Answer
A	A one-way transmission to initiate, modify or terminate functions of a device at a distance
B	An instruction from a VEC
C	A one-way radio transmission of measurements at a distance from the measuring instrument
D	An instruction bulletin issued by the FCC

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	So that modulation sidebands do not extend beyond the band edge
C	To allow for transmitter frequency drift
D	To allow for calibration error in the transmitter frequency display

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

4. - T1D07

What types of amateur stations can automatically retransmit the signals of other amateur stations?

Select	Answer
A	Earth, repeater, or space stations
B	Beacon, repeater, or space stations
C	Auxiliary, repeater, or space stations
D	Auxiliary, beacon, or Earth stations

5. - T1E02

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

Select	Answer
A	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
B	Any person over the age of 18
C	Any family member of the station licensee
D	Any U.S. citizen or registered alien

6. - T1F01

What type of identification is being used when identifying a station on the air as Race Headquarters?

Select	Answer
A	Tactical call sign
B	Broadcast station
C	An official call sign reserved for RACES drills
D	SSID

7. - T2A05

How should you respond to a station calling CQ?

Select	Answer
A	Transmit your call sign followed by the other stations call sign
B	Transmit the other stations call sign followed by your call sign
C	Transmit CQ followed by the other stations call sign
D	Transmit a signal report followed by your call sign

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

9. - T2C05

Which of the following describes the Radio Amateur Civil Emergency Service (RACES)?

Select	Answer
A	A radio service using amateur stations for emergency management or civil defense communications
B	An emergency service using amateur operators certified by a civil defense organization as being enrolled in that organization
C	A radio service using amateur frequencies for emergency management or civil defense communications
D	All of these choices are correct

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 to find a path that reflects signals to the repeater
C	Try the long path
D	Increase the antenna SWR

11. - T3B09

What are the frequency limits of the UHF spectrum?

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

12. - T3C05

Which of the following effects might cause radio signals to be heard despite obstructions between the transmitting and receiving stations?

Select	Answer
A	Quantum tunneling
B	Doppler shift
C	Faraday rotation
D	Knife-edge diffraction

13. - T4A07

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

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

14. - T4B03

What is the purpose of the squelch control on a transceiver?

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

15. - T5A01

Electrical current is measured in which of the following units?

Select	Answer
A	Ohms
B	Volts
C	Amperes
D	Watts

16. - T5B08

How many microfarads are 1,000,000 picofarads?

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

17. - T5C10

How much power is being used in a circuit when the applied voltage is 12 volts DC and the current is 2.5 amperes?

Select	Answer
A	30 watts
B	0.208 watts
C	4.8 watts
D	14.5 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	18 ohms
B	13.5 ohms
C	0.125 ohms
D	8 ohms

19. - T6A06

What type of electrical component stores energy in a magnetic field?

Select	Answer
A	Diode
B	Inductor
C	Capacitor
D	Resistor

20. - T6B12

What is the term that describes a transistor's ability to amplify a signal?

Select	Answer
A	Forward resistance
B	Forward voltage drop
C	On resistance
D	Gain

21. - T6C01

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

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

22. - T6D11

What is a simple resonant or tuned circuit?

Select	Answer
A	A type of voltage regulator
B	A resistor circuit used for reducing standing wave ratio
C	A circuit designed to provide high fidelity audio
D	An inductor and a capacitor connected in series or parallel to form a filter

23. - T7A05

What is the name of a circuit that generates a signal of a desired frequency?

Select	Answer
A	Product detector
B	Oscillator
C	Low-pass filter
D	Reactance modulator

24. - T7B08

What should you do if something in a neighbors home is causing harmful interference to your amateur station?

Select	Answer
A	All of these choices are correct
B	Politely inform your neighbor about the rules that prohibit the use of devices which cause interference
C	Work with your neighbor to identify the offending device
D	Check your station and make sure it meets the standards of good amateur practice

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 has more loss per foot
C	It requires special techniques to prevent water absorption
D	It cannot be used for VHF or UHF antennas

26. - T7D03

How is an ammeter usually connected 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. - T8A06

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

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

28. - T8B11

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

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

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	Radio direction finding
D	Phase locking

30. - T8D11

What is an ARQ transmission system?

Select	Answer
A	A system used to encrypt command signals to an amateur radio satellite
B	A digital scheme whereby the receiving station detects errors and sends a request to the sending station to retransmit the information
C	A method of compressing the data in a message so more information can be sent in a shorter time
D	A special transmission format limited to video signals

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

32. - T9B08

Why should coax connectors exposed to the weather be sealed against water intrusion?

Select	Answer
A	All of these choices are correct
B	To prevent an increase in feed line loss
C	To prevent interference to telephones
D	To keep the jacket from becoming loose

33. - T0A07

Which of these precautions should be taken when installing devices for lightning protection in a coaxial cable feed line?

Select	Answer
A	Include a parallel bypass switch for each protector so that it can be switched out of the circuit when running high power
B	Ground all of the protectors to a common plate which is in turn connected to an external ground
C	Keep the ground wires from each protector separate and connected to station ground
D	Include a series switch in the ground line of each protector to prevent RF overload from inadvertently damaging the protector

34. - T0B11

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

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

35. - T0C07

What could happen if a person accidentally touched your antenna while you were transmitting?

Select	Answer
A	All of these choices are correct
B	Touching the antenna could cause television interference
C	They might develop radiation poisoning
D	They might receive a painful RF burn