Ham Radio Technician Test Safety Procedures & Risk Management 5

Question 1

According to FCC rules, who is responsible for ensuring that an amateur radio station complies with RF exposure limits?

Accepted Answer

The licensed amateur radio operator controlling the station

Answer

The antenna manufacturer

Answer

The FCC field office nearest the station

Answer

The local amateur radio club

Question 2

What does 'time averaging' allow an operator to do when evaluating RF exposure compliance?

Accepted Answer

Average high-power transmit periods with low-power or no-transmit periods to remain within MPE limits

Answer

Transmit at any power level as long as the session is short

Answer

Ignore exposure limits during contest weekends

Answer

Count only the first 6 minutes of each hour

Question 3

What is the safest way to discharge a large electrolytic capacitor before working on equipment?

Accepted Answer

Remove power and let it discharge through the circuit over several minutes, then verify with a meter

Answer

Short the leads together with a screwdriver to drain the charge instantly

Answer

Heat the capacitor with a heat gun to accelerate discharge

Answer

Touch one lead at a time with an insulated probe

Question 4

When is it acceptable to work alone on a tall antenna tower?

Accepted Answer

It is never recommended — a ground person should always be present

Answer

Only during daylight hours with good visibility

Answer

Whenever the operator is experienced and has all required tools

Answer

Anytime the tower is shorter than 50 feet

Question 5

What precaution should be taken before connecting an antenna to a transceiver that has been stored for several years?

Accepted Answer

Inspect all coax connectors, cables, and the antenna itself for corrosion, damage, or water intrusion before operating

Answer

Apply maximum power briefly to burn off any corrosion on the antenna element

Answer

Replace the transceiver's PA transistors as a precaution

Answer

Transmit on reduced power for 30 seconds to warm up stored components

Question 6

What is the purpose of placing warning signs near a transmitting antenna installation?

Accepted Answer

To warn uninformed persons of potential RF exposure so they can maintain safe distance

Answer

To satisfy FCC licensing requirements for commercial installations only

Answer

To deter theft of antenna equipment

Answer

To mark property boundaries near tower guy wires

Question 7

Which condition makes a ladder the most dangerous tool for tower work?

Accepted Answer

Leaning the ladder against the tower while a second person climbs the tower independently

Answer

Using an aluminum ladder instead of fiberglass

Answer

Placing the ladder on a soft surface such as grass

Answer

Using a ladder rated for only 250 lbs when the operator weighs 200 lbs