Ham Radio General Class Test FREE Ham Radio General Questions and Answers 3

Question 1

What type of filter is used to block signals above a specified frequency while passing those below it?

Accepted Answer

Low-pass filter

Answer

High-pass filter

Answer

Band-pass filter

Answer

Notch filter

Question 2

What is the approximate length of a half-wave dipole antenna for the 40-meter band?

Accepted Answer

66 feet

Answer

33 feet

Answer

132 feet

Answer

20 feet

Question 3

Which of the following is a requirement for transmitting on amateur radio frequencies?

Accepted Answer

You must identify your station with your call sign at least every 10 minutes

Answer

You must use only Morse code on HF bands

Answer

You must have an Extra class license for any HF operation

Answer

You must register each transmission with the FCC

Question 4

What does the term 'intermodulation distortion' refer to in a receiver?

Accepted Answer

Unwanted signals generated by the mixing of two or more strong signals

Answer

Distortion caused by a weak battery

Answer

Signal loss due to long feed line runs

Answer

Noise introduced by atmospheric conditions

Question 5

What is the function of an antenna tuner?

Accepted Answer

To match the impedance of the antenna system to the transceiver output

Answer

To amplify the received signal

Answer

To filter out unwanted frequencies

Answer

To increase the bandwidth of the antenna

Question 6

Which emission mode uses the narrowest bandwidth?

Accepted Answer

CW (Morse code)

Answer

SSB voice

Answer

FM voice

Answer

AM voice