Practice Exam

T2C04

1. What is RACES?

• A. A radio contest held in a short period, sometimes called a "sprint"
• B. An emergency organization combining amateur radio and citizens band operators and frequencies
• C. An FCC Part 97 amateur radio service for civil defense communications during national emergencies
• D. An international radio experimentation society

T5C02

2. What is the unit of capacitance?

• A. Henry
• B. Farad
• C. Ohm
• D. Volt

T1C09

3. What is the grace period for renewal if an amateur license expires?

• A. Ten years
• B. Two years
• C. Five years
• D. Three years

T5B10

4. Which decibel value most closely represents a power decrease from 12 watts to 3 watts?

• A. -9 dB
• B. -3 dB
• C. -1 dB
• D. -6 dB

T8A11

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

• A. 2.4 kHz
• B. 1000 Hz
• C. 15 kHz
• D. 150 Hz

T6C02

6. What is component 1 in figure T-1?

• A. Connector
• B. Battery
• C. Transistor
• D. Resistor

T4B01

7. What is the effect of excessive microphone gain on SSB transmissions?

• A. Frequency instability
• B. Distorted transmitted audio
• C. Increased SWR
• D. Sideband inversion

T1B07

8. Which of the following VHF/UHF band segments are limited to CW only?

• A. All these choices are correct
• B. 50.0 MHz to 50.1 MHz and 144.0 MHz to 144.1 MHz
• C. 902.0 MHz to 902.1 MHz
• D. 219 MHz to 220 MHz and 420.0 MHz to 420.1 MHz

T0C06

9. Which of the following is an acceptable method to determine whether your station complies with FCC RF exposure regulations?

• A. By calculation based on computer modeling
• B. All these choices are correct
• C. By measurement of field strength using calibrated equipment
• D. By calculation based on FCC OET Bulletin 65

T7D06

10. Which of the following can damage a multimeter?

• A. Attempting to measure resistance using the voltage setting
• B. Attempting to measure voltage when using the resistance setting
• C. Not allowing it to warm up properly
• D. Failing to connect one of the probes to ground

T6B02

11. What electronic component allows current to flow in only one direction?

• A. Fuse
• B. Driven element
• C. Diode
• D. Resistor

T7A05

12. What is the name of a circuit that generates a signal at a specific frequency?

• A. Oscillator
• B. Low-pass filter
• C. Phase modulator
• D. Reactance modulator

T7C07

13. What happens to power lost in a feed line?

• A. It distorts the signal
• B. It increases the SWR
• C. It is converted into heat
• D. It is radiated as harmonics

T5D09

14. What is the current through a 24-ohm resistor connected across 240 volts?

• A. 5760 amperes
• B. 0.1 amperes
• C. 2400 amperes
• D. 10 amperes

T9B07

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

• A. They are commonly used at HF and VHF frequencies
• B. They are a bayonet-type connector
• C. They are watertight
• D. They are preferred for microwave operation

T9A09

16. What is an advantage of a 5/8-wavelength whip antenna for VHF or UHF mobile service compared to a 1/4-wave antenna?

• A. It has lower SWR
• B. It radiates at a higher angle
• C. It has lower impedance
• D. It has more gain

T3C08

17. What causes tropospheric ducting?

• A. Temperature inversions in the atmosphere
• B. Sunspots and solar flares
• C. Updrafts from hurricanes and tornadoes
• D. Discharges of lightning during electrical storms

T6A06

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

• A. Resistor
• B. Capacitor
• C. Inductor
• D. Diode

T8D09

19. What is CW?

• A. A type of electromagnetic propagation
• B. Another name for a Morse code transmission
• C. Error correction for digital transmission using code words
• D. A digital mode used primarily on 2-meter FM

T1A03

20. What do the FCC rules state regarding the use of a phonetic alphabet for station identification in the Amateur Radio Service?

• A. All these choices are correct
• B. It is required when transmitting emergency messages
• C. It is encouraged when using phone emissions
• D. It is required when in contact with foreign stations

T6D02

21. What is a relay?

• A. An electrically-controlled switch
• B. An inverting amplifier
• C. A current-controlled amplifier
• D. A pass transistor

T3A03

22. What antenna polarization is normally used for long-distance CW and SSB contacts on the VHF and UHF bands?

• A. Left-hand circular
• B. Right-hand circular
• C. Vertical
• D. Horizontal

T2A10

23. What is a band plan, beyond the privileges established by the FCC?

• A. A list of operating schedules
• B. A voluntary guideline for using different modes or activities within an amateur band
• C. A plan devised by a club to indicate frequency band usage
• D. A list of available net frequencies

T1E06

24. When, other than during an emergency, may a Technician class licensee be the control operator of a station operating in an Amateur Extra Class band segment?

• A. When using a club station whose trustee holds an Amateur Extra Class license
• B. At no time
• C. As part of a multi-operator contest team
• D. When designated as the control operator by an Amateur Extra Class licensee

T4A10

25. What function does a digital mode hotspot perform for nearby transceivers?

• A. High-speed digital communications for meteor scatter
• B. FT8 digital communications via AFSK using a smartphone connected to the internet
• C. RTTY encoding and decoding without a computer
• D. Communication with a digital voice or data network

T7B03

26. Which of the following can cause radio frequency interference?

• A. Harmonics
• B. Fundamental overload
• C. Spurious emissions
• D. All these choices are correct

T3B01

27. What is the relationship between the electric and magnetic fields of an electromagnetic wave?

• A. They travel at different speeds
• B. They revolve in opposite directions
• C. They are at right angles
• D. They are in parallel

T8C07

28. What is Voice Over Internet Protocol (VoIP)?

• A. A technique employed to "spot" DX stations via the internet
• B. A technique for measuring the modulation quality of a transmitter using remote sites monitored via the internet
• C. A set of rules specifying how to identify your station when linked over the internet to another station
• D. A method of delivering voice communications over the internet using digital techniques

T2B12

29. What is the digital color code used on DMR repeater systems?

• A. A code which automatically programs the repeater offset to a frequency chosen by the user
• B. An access code which must be programmed into a DMR transmitter to access a specific repeater
• C. A code transmitted by the repeater to indicate health and status of the equipment
• D. A code which identifies the specific CODEC being used so that the repeater can properly decode the audio

T5A11

30. What type of current flow is opposed by resistance?

• A. RF current
• B. Alternating current
• C. Direct current
• D. All these choices are correct

T8B04

31. What mode of transmission is commonly used by amateur radio satellites?

• A. SSB
• B. CW/data
• C. FM
• D. All these choices are correct

T0B02

32. What is required when climbing an antenna tower?

• A. Use appropriate tie-off to the tower at all times
• B. Have sufficient training on safe tower climbing techniques
• C. All these choices are correct
• D. Always wear an approved climbing harness

T1D03

33. When is it permissible to transmit messages encoded to obscure their meaning?

• A. Only when using a remote station during a contest
• B. Never
• C. Only when transmitting certain approved digital codes
• D. Only when transmitting control commands to space stations or model craft

T0A10

34. What hazard exists when rapidly charging or discharging an unprotected battery?

• A. Excess output ripple
• B. Electric shock
• C. Overheating or out-gassing
• D. Overvoltage

T1F02

35. How often must you identify with your FCC-assigned call sign when using tactical call signs such as "Race Headquarters"?

• A. Never, the tactical call is sufficient
• B. At the end of every transmission
• C. At least every 10 minutes during and at the end of a communication
• D. Once every hour