# Technician Class Exam Question Pool

effective 7/01/2010 thru 6/30/2014

 Show: Unseen questions Weak questions Review questions Learned questions Incorrect answer choices

T3B-2010: Radio and electromagnetic wave properties; the electromagnetic spectrum, wavelength vs. frequency, velocity of electromagnetic waves

T3B01: What is the name for the distance a radio wave travels during one complete cycle?

Wavelength

Wave speed

Waveform

T3B02: What term describes the number of times per second that an alternating current reverses direction?

Frequency

Pulse rate

Speed

Wavelength

T3B03: What are the two components of a radio wave?

Electric and magnetic fields

AC and DC

Voltage and current

Ionizing and non-ionizing radiation

T3B04: How fast does a radio wave travel through free space?

At the speed of light

At the speed of sound

Its speed is inversely proportional to its wavelength

Its speed increases as the frequency increases

T3B05: How does the wavelength of a radio wave relate to its frequency?

The wavelength gets shorter as the frequency increases

The wavelength gets longer as the frequency increases

There is no relationship between wavelength and frequency

The wavelength depends on the bandwidth of the signal

T3B06: What is the formula for converting frequency to wavelength in meters?

Wavelength in meters equals 300 divided by frequency in megahertz

Wavelength in meters equals frequency in hertz multiplied by 300

Wavelength in meters equals frequency in hertz divided by 300

Wavelength in meters equals frequency in megahertz divided by 300

T3B07: What property of radio waves is often used to identify the different frequency bands?

The approximate wavelength

The magnetic intensity of waves

The time it takes for waves to travel one mile

The voltage standing wave ratio of waves

T3B08: What are the frequency limits of the VHF spectrum?

30 to 300 MHz

30 to 300 kHz

300 to 3000 kHz

300 to 3000 MHz

T3B09: What are the frequency limits of the UHF spectrum?

300 to 3000 MHz

30 to 300 kHz

30 to 300 MHz

300 to 3000 kHz

T3B10: What frequency range is referred to as HF?

3 to 30 MHz

300 to 3000 MHz

30 to 300 MHz

300 to 3000 kHz

T3B11: What is the approximate velocity of a radio wave as it travels through free space?

300,000,000 meters per second

3000 kilometers per second

300,000 miles per hour

186,000 miles per hour

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