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General Class Exam Question Pool

effective 7/01/2015 thru 6/30/2019

    Unseen questions
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2015-G0A: RF safety principles, rules and guidelines; routine station evaluation

2015-G0A01: What is one way that RF energy can affect human body tissue?

It heats body tissue

It causes radiation poisoning

It causes the blood count to reach a dangerously low level

It cools body tissue

2015-G0A02: Which of the following properties is important in estimating whether an RF signal exceeds the maximum permissible exposure (MPE)?

All of these choices are correct

Its duty cycle

Its frequency

Its power density

2015-G0A03: How can you determine that your station complies with FCC RF exposure regulations?

All of these choices are correct

By calculation based on FCC OET Bulletin 65

By calculation based on computer modeling

By measurement of field strength using calibrated equipment

2015-G0A04: What does "time averaging" mean in reference to RF radiation exposure?

The total RF exposure averaged over a certain time

The average amount of power developed by the transmitter over a specific 24 hour period

The average time it takes RF radiation to have any long-term effect on the body

The total time of the exposure

2015-G0A05: What must you do if an evaluation of your station shows RF energy radiated from your station exceeds permissible limits?

Take action to prevent human exposure to the excessive RF fields

File an Environmental Impact Statement (EIS-97) with the FCC

Secure written permission from your neighbors to operate above the controlled MPE limits

All of these choices are correct

2015-G0A06: What precaution should be taken when installing a ground-mounted antenna?

It should be installed such that it is protected against unauthorized access

It should not be installed higher than you can reach

It should not be installed in a wet area

It should limited to 10 feet in height

2015-G0A07: What effect does transmitter duty cycle have when evaluating RF exposure?

A lower transmitter duty cycle permits greater short-term exposure levels

A higher transmitter duty cycle permits greater short-term exposure levels

Low duty cycle transmitters are exempt from RF exposure evaluation requirements

High duty cycle transmitters are exempt from RF exposure requirements

2015-G0A08: Which of the following steps must an amateur operator take to ensure compliance with RF safety regulations when transmitter power exceeds levels specified in FCC Part 97.13?

Perform a routine RF exposure evaluation

Post a copy of FCC Part 97.13 in the station

Post a copy of OET Bulletin 65 in the station

All of these choices are correct

2015-G0A09: What type of instrument can be used to accurately measure an RF field?

A calibrated field strength meter with a calibrated antenna

A receiver with an S meter

An SWR meter with a peak-reading function

An oscilloscope with a high-stability crystal marker generator

2015-G0A10: What is one thing that can be done if evaluation shows that a neighbor might receive more than the allowable limit of RF exposure from the main lobe of a directional antenna?

Take precautions to ensure that the antenna cannot be pointed in their direction

Change to a non-polarized antenna with higher gain

Post a warning sign that is clearly visible to the neighbor

Use an antenna with a higher front-to-back ratio

2015-G0A11: What precaution should you take if you install an indoor transmitting antenna?

Make sure that MPE limits are not exceeded in occupied areas

Locate the antenna close to your operating position to minimize feed line radiation

Position the antenna along the edge of a wall to reduce parasitic radiation

Make sure the antenna is properly shielded

2015-G0A12: What precaution should you take whenever you make adjustments or repairs to an antenna?

Turn off the transmitter and disconnect the feed line

Ensure that you and the antenna structure are grounded

Wear a radiation badge

All of these choices are correct

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2015-G9D: Specialized antennas
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General Class Exam Question Pool
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2015-G0B: Safety in the ham shack: electrical shock and treatment, safety grounding, fusing, interlocks, wiring, antenna and tower safety
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