FREE Ham Radio General Class MCQ Questions and Answers

Question 1

What may a ground loop in your station's audio connections manifest as?

Accepted Answer

You receive reports of “hum” on your station’s transmitted signal

Answer

When people report hearing a "hum" in your station's transmitted signal, a ground loop may be the cause. Ground loops frequently cause interference and noise, and in rare situations, they could even put users at danger for electric shock.

Question 2

When utilizing 3 kHz wide LSB, how near to the lower edge of a band's phone segment should your displayed carrier frequency be?

Accepted Answer

At least 3 kHz above the edge of the segment

Answer

When using 3 kHz wide LSB, your displayed carrier frequency must be at least 3 kHz higher than the lower edge of a band's phone section.

Question 3

Why should a storage battery that is being charged by a solar panel have a series diode connected between them?

Accepted Answer

To prevent discharge of the battery through the panel during times of low or no illumination

Answer

To prevent discharge of the storage battery through the solar panel during periods of low or no light, a series diode is attached between the solar panel and the battery. Electronic parts with two terminals called diodes provide zero resistance in one direction and negligible resistance in the other.

Question 4

Which of the following tools can be applied to radio frequency impedance matching?

Accepted Answer

All of the above

Answer

Impedance matching at radio frequencies can be achieved using a transformer, a Pi-network, or a transmission line.

Question 5

What percentage of power is lost when 1 dB is lost?

Accepted Answer

20.6 percent

Answer

A power loss of 20.5% results from a line loss of 1 dB.

Ham Radio General Class Test Practice Test

Ham Radio General Class Test Practice Test

FREE Ham Radio General Class MCQ Questions and Answers