Practice Exam

G4E02

1. What is the purpose of a "corona ball" on a HF mobile antenna?

• A. To reduce the chance of damage if the antenna should strike an object
• B. To increase the "Q" of the antenna
• C. To narrow the operating bandwidth of the antenna
• D. To reduce high voltage discharge from the tip of the antenna

G9D11

2. Which of the following is a disadvantage of multiband antennas?

• A. They must be fed with open wire line
• B. They present low impedance on all design frequencies
• C. They have poor harmonic rejection
• D. They must be used with an antenna tuner

G8A11

3. What happens to the RF carrier signal when a modulating audio signal is applied to an FM transmitter?

• A. The carrier frequency changes proportionally to the amplitude and frequency of the modulating signal
• B. The carrier phase changes proportionally to the instantaneous amplitude of the modulating signal
• C. The carrier amplitude changes proportionally to the instantaneous frequency of the modulating signal
• D. The carrier frequency changes proportionally to the instantaneous amplitude of the modulating signal

G5B12

4. What would be the RMS voltage across a 50-ohm dummy load dissipating 1200 watts?

• A. 245 volts
• B. 692 volts
• C. 173 volts
• D. 346 volts

G9A11

5. What standing wave ratio will result from the connection of a 50-ohm feed line to a non-reactive load having a 50-ohm impedance?

• A. 50:50
• B. 1:1
• C. 0:0
• D. 2:1

G2A08

6. Which of the following is a recommended way to break into a conversation when using phone?

• A. Say "CQ" followed by the call sign of either station
• B. Say your call sign during a break between transmissions from the other stations
• C. Say "Break. Break. Break." and wait for a response
• D. Say "QRZ" several times followed by your call sign

G1E04

7. Which of the following conditions require an Amateur Radio station licensee to take specific steps to avoid harmful interference to other users or facilities?

• A. When operating within one mile of an FCC Monitoring Station
• B. When a station is transmitting spread spectrum emissions
• C. All of these choices are correct
• D. When using a band where the Amateur Service is secondary

G7A04

8. What is the peak-inverse-voltage across the rectifier in a half-wave power supply?

• A. Two times the normal peak output voltage of the power supply
• B. Equal to the normal output voltage of the power supply
• C. One-half the normal peak output voltage of the power supply
• D. One-half the normal output voltage of the power supply

G7B05

9. How many states does a 3-bit binary counter have?

• A. 3
• B. 16
• C. 6
• D. 8

G2B12

10. When is an amateur station allowed to use any means at its disposal to assist another station in distress?

• A. At any time when transmitting in an organized net
• B. Only on authorized HF frequencies
• C. Only when transmitting in RACES
• D. At any time during an actual emergency

G6A08

11. Which of the following describes a thermistor?

• A. A capacitor that changes value with temperature
• B. A special type of transistor for use at very cold temperatures
• C. A resistor that is resistant to changes in value with temperature variations
• D. A device having a specific change in resistance with temperature variations

G0A01

12. What is one way that RF energy can affect human body tissue?

• A. It causes the blood count to reach a dangerously low level
• B. It cools body tissue
• C. It heats body tissue
• D. It causes radiation poisoning

G6B01

13. What is the peak-inverse-voltage rating of a rectifier?

• A. The maximum voltage the rectifier will handle in the non-conducting direction
• B. 2.8 times the AC frequency
• C. 1.4 times the AC frequency
• D. The maximum voltage the rectifier will handle in the conducting direction

G0B08

14. What should be done by any person preparing to climb a tower that supports electrically powered devices?

• A. All of these choices are correct
• B. Unground the base of the tower
• C. Notify the electric company that a person will be working on the tower
• D. Make sure all circuits that supply power to the tower are locked out and tagged

G4D10

15. How close to the lower edge of the 40 meter General Class phone segment should your displayed carrier frequency be when using 3 kHz wide LSB?

• A. 3 kHz above the edge of the segment
• B. Center your signal on the edge of the segment
• C. Your displayed carrier frequency may be set at the edge of the segment
• D. 3 kHz below the edge of the segment

G2C05

16. What is the best speed to use answering a CQ in Morse Code?

• A. The speed at which the CQ was sent
• B. 5 wpm, as all operators licensed to operate CW can copy this speed
• C. A slow speed until contact is established
• D. The fastest speed at which you are comfortable copying

G3A06

17. What is a geomagnetic storm?

• A. A sudden drop in the solar-flux index
• B. Ripples in the ionosphere
• C. A temporary disturbance in the Earth's magnetosphere
• D. A thunderstorm which affects radio propagation

G7C08

18. What type of circuit is used in many FM receivers to convert signals coming from the IF amplifier to audio?

• A. Phase inverter
• B. Product detector
• C. Discriminator
• D. Mixer

G3B04

19. What is a reliable way to determine if the Maximum Usable Frequency (MUF) is high enough to support skip propagation between your station and a distant location on frequencies between 14 and 30 MHz?

• A. Send a series of dots on the band and listen for echoes from your signal
• B. Listen for signals from an international beacon
• C. Check the strength of signals in the MF AM broadcast band
• D. Check the strength of TV signals from Western Europe

G1C01

20. What is the maximum transmitting power an amateur station may use on 10.140 MHz?

• A. 1500 watts PEP output
• B. 2000 watts PEP output
• C. 200 watts PEP output
• D. 1000 watts PEP output

G4A04

21. What reading on the plate current meter of a vacuum tube RF power amplifier indicates correct adjustment of the plate tuning control?

• A. A slow, rhythmic oscillation
• B. No change will be observed
• C. A pronounced peak
• D. A pronounced dip

G4C11

22. Which of the following is one use for a Digital Signal Processor in an amateur station?

• A. To provide adequate grounding
• B. To increase antenna bandwidth
• C. To remove noise from received signals
• D. To increase antenna gain

G2D07

23. Which of the following is required by the FCC rules when operating in the 60 meter band?

• A. You must keep a log of the manufacturer of your equipment and the antenna used
• B. You must keep a log of the date, time, frequency, power level and stations worked
• C. If you are using other than a dipole antenna, you must keep a record of the gain of your antenna
• D. You must keep a log of all third party traffic

G6C12

24. Which of the following connectors would be a good choice for a serial data port?

• A. PL-259
• B. Type SMA
• C. Type N
• D. DE-9

G2E12

25. How does the receiving station respond to an ARQ data mode packet containing errors?

• A. Terminates the contact
• B. Requests the packet be retransmitted
• C. Requests a change in transmitting protocol
• D. Sends the packet back to the transmitting station

G9B09

26. Which of the following is an advantage of a horizontally polarized as compared to vertically polarized HF antenna?

• A. Lower feed-point impedance
• B. Lower radiation resistance
• C. Shorter Radials
• D. Lower ground reflection losses

G5C02

27. Which part of a transformer is normally connected to the incoming source of energy?

• A. The primary
• B. The core
• C. The secondary
• D. The plates

G4B14

28. What is an instance in which the use of an instrument with analog readout may be preferred over an instrument with a numerical digital readout?

• A. When testing logic circuits
• B. When high precision is desired
• C. When adjusting tuned circuits
• D. When measuring the frequency of an oscillator

G8B03

29. What is another term for the mixing of two RF signals?

• A. Phase inverting
• B. Synthesizing
• C. Cancellation
• D. Heterodyning

G1A07

30. Which of the following frequencies is within the General Class portion of the 75 meter phone band?

• A. 3750 kHz
• B. 1875 kHz
• C. 4005 kHz
• D. 3900 kHz

G5A05

31. How does an inductor react to AC?

• A. As the amplitude of the applied AC increases, the reactance increases
• B. As the frequency of the applied AC increases, the reactance decreases
• C. As the frequency of the applied AC increases, the reactance increases
• D. As the amplitude of the applied AC increases, the reactance decreases

G1D05

32. Which of the following is sufficient for you to be an administering VE for a Technician Class operator license examination?

• A. An FCC General Class or higher license and VEC accreditation
• B. Receipt of a CSCE for General Class
• C. Possession of a properly obtained telegraphy license
• D. Notification to the FCC that you want to give an examination

G9C18

33. What happens when the feed point of a quad antenna is changed from the center of either horizontal wire to the center of either vertical wire?

• A. The direction of the main lobe is reversed
• B. The polarization of the radiated signal changes from horizontal to vertical
• C. The radiated signal changes to an omnidirectional pattern
• D. The polarization of the radiated signal changes from vertical to horizontal

G3C02

34. Where on the Earth do ionospheric layers reach their maximum height?

• A. Where the Sun is rising
• B. Where the Sun is on the opposite side of the Earth
• C. Where the Sun has just set
• D. Where the Sun is overhead

G1B08

35. When choosing a transmitting frequency, what should you do to comply with good amateur practice?

• A. Review FCC Part 97 Rules regarding permitted frequencies and emissions
• B. All of these choices are correct
• C. Before transmitting, listen to avoid interfering with ongoing communication
• D. Follow generally accepted band plans agreed to by the Amateur Radio community.