Extra Class
The highest level of amateur radio license with full operating privileges on all amateur bands. Most technical exam. 50 questions, 37 needed to pass.
What is the result of conductor skin effect?
Why is it important to keep lead lengths short for components used in circuits for VHF and above?
What is the phase relationship between current and voltage for reactive power?
Why are short connections used at microwave frequencies?
What parasitic characteristic causes electrolytic capacitors to be unsuitable for use at RF?
What parasitic characteristic creates an inductor’s self-resonance?
What combines to create the self-resonance of a component?
What is the primary cause of loss in film capacitors at RF?
What happens to reactive power in ideal inductors and capacitors?
As a conductor’s diameter increases, what is the effect on its electrical length?
How much real power is consumed in a circuit consisting of a 100-ohm resistor in series with a 100-ohm inductive reactance drawing 1 ampere?
What is reactive power?
In what application is gallium arsenide used as a semiconductor material?
Which of the following semiconductor materials contains excess free electrons?
Why does a PN-junction diode not conduct current when reverse biased?
What is the name given to an impurity atom that adds holes to a semiconductor crystal structure?
How does DC input impedance at the gate of a field-effect transistor (FET) compare with that of a bipolar transistor?
What is the beta of a bipolar junction transistor?
Which of the following indicates that a silicon NPN junction transistor is biased on?
What is the term for the frequency at which the grounded-base current gain of a bipolar junction transistor has decreased to 0.7 of the gain obtainable at 1 kHz?
HAM Test Bank Editorial Team
Licensed Amateur Radio Operators & Volunteer Examiners
Content for Extra Class exam questions is based on official FCC Part 97 regulations and the NCVEC question pool.