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RF Cafe Quiz #10
A Sampling of RF & Wireless Topics


RF Engineering Quizzes - RF CafeAll RF Cafe quizzes would make perfect fodder in employment interviews for technicians or engineers - particularly those who are fresh out of school or are relatively new to the work world. Come to think of it, they would make equally excellent study material for the same persons who are going to be interviewed for a job.

Click here for the complete list of RF Cafe Quizzes.
Note: Some material based on books have quoted passages.







1. What format would a near-filed communications (13 MHz variety) antenna most likely take?

a) Inductive coil
b) Capacitive plate
c) Yagi
d) Parabolic dish



2. What does SOLT stand for?

a) Short Overload Test
b) Simple OperationaL Test
c) Short, Open, Load, Through
d) Strategic Offensive Limitation Talks



3. Which instrument would be best to use to
    locate a defective waveguide joint?

a) Microscope
b) Micrometer
c) Spectrum Analyzer
d) Time Domain Reflectometer



4. Which entity in the U.S. determines whether an RF energy-emitting device is allowed to be operated?

a) The Federal Communications Commission
b) The American Radio Relay League
c) The Honor System
d) The Underwriter’s Laboratory



5. What does 2G, 2.5G, 3G, etc., mean in reference to cellphones?

a) The average cost of service, expressed in thousands of dollars ($ grand) per year
b) The “generation” of the technology
c) It is an arbitrary alpha-numeric reference code
d) The frequency band of operation, in GHz



6. Where would you be likely to find a free wireless Internet connection?

a) Hotel Lobby
b) Airport
c) Your backyard
d) All the above



7. Who hosts the MTT-S International Microwave Symposium?

a) Microwave Journal Magazine
b) Microwaves & RF Magazine
c) RF Design Magazine
d) The Institute of Electrical & Electronics Engineers



8. What is the “rule of thumb” for estimating RF signal propagation distance vs. time in free space?

a) 1 millimeter per millisecond
b) 1 meter per microsecond
c) 1 foot per nanosecond
d) 1 inch per picosecond



9. What is the “rule of thumb” for estimating RF frequency vs. wavelength in free space?

a) 300 MHz = 1 meter
b) 100 MHz = 1 meter
c) 300 MHz = 3 feet (1 yard)
d) 100 MHz = 1 foot



10. What is the most unique feature of a Helmholtz coil?

a) The high voltage makes for cool Jacob’s Ladders
b) Magnetic field lines are extremely uniform within the coil
c) It is self-powered
d) It uses a rare earth element core



Need some help? Click here for the answers and explanations.
ERZIA (RF amplifiers, wireless, communications) - RF Cafe Rohde & Schwarz RTB2000 Digital Oscilloscope - RF Cafe
Res-Net Microwave - RF Cafe Res-Net Microwave - RF Cafe
About RF Cafe
Kirt Blattenberger - RF Cafe Webmaster
Copyright: 1996 - 2018
Webmaster:
    Kirt Blattenberger,
    BSEE - KB3UON

RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The Internet was still largely an unknown entity at the time and not much was available in the form of WYSIWYG ...

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