Ham Radio Technician Test Equipment & Tools Usage 2

Question 1

What is the purpose of a dummy load when testing a transmitter?

Accepted Answer

To absorb RF energy without radiating a signal

Answer

To boost output power during testing

Answer

To match the antenna impedance to 300 ohms

Answer

To filter harmonics from the output

Question 2

Which instrument would you use to measure the standing wave ratio (SWR) of an antenna system?

Accepted Answer

SWR meter (reflectometer)

Answer

Oscilloscope

Answer

Frequency counter

Answer

Signal generator

Question 3

What does a low SWR reading (close to 1:1) indicate about an antenna system?

Accepted Answer

The antenna and feedline are well matched

Answer

The antenna is radiating excessive harmonics

Answer

The feedline has high loss

Answer

The transmitter output power is too high

Question 4

A technician uses an antenna analyzer at the feed point of a dipole. What advantage does this have over measuring SWR at the radio?

Accepted Answer

It eliminates feedline loss from the measurement, giving true antenna impedance

Answer

It shows the antenna's color code

Answer

It measures transmitter output power directly

Answer

It automatically tunes the antenna

Question 5

Which of the following is a common use for a signal generator in amateur radio equipment maintenance?

Accepted Answer

Injecting a known RF signal to align or troubleshoot receivers

Answer

Charging battery packs

Answer

Measuring antenna height

Answer

Calculating feedline velocity factor

Question 6

What safety precaution should you take before working on a capacitor in a transmitter power supply?

Accepted Answer

Discharge the capacitor through a suitable bleeder resistor before touching it

Answer

Verify the antenna is connected

Answer

Increase the supply voltage to clear stored charge

Answer

Connect the capacitor directly to ground with bare hands

Question 7

When soldering a coaxial cable connector, which technique helps ensure a reliable, low-resistance joint?

Accepted Answer

Apply flux, heat the connector and conductor together, then flow solder in

Answer

Use cold solder to preserve the dielectric

Answer

Drip solder onto a cold connector and press it on

Answer

Avoid flux because it corrodes RF connectors