License Exam Quiz #383
de Steve, AE8AT
The quiz topic this week is random, selected from the least used sections of each question pool.
T9A03 How is the polarization of an antenna described?
A. By the shape of the driven element
B. By the orientation of the electric field
C. By the orientation of the magnetic field
D. By the direction of radiation
G5C06 What is the voltage output of a transformer with a 500-turn primary and a 1500-turn secondary when 120 VAC is applied to the primary?
A. 360 volts
B. 120 volts
C. 40 volts
D. 25.5 volts
E7H02 What is a microphonic?
A. An IC used for amplifying microphone signals
B. Distortion caused by RF pickup on the microphone cable
C. Changes in oscillator frequency caused by mechanical vibration
D. Excess loading of the microphone by an oscillator
Answers:
T9A03 = B
G5C06 = A
E7H02 = C
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