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.

601 questions | Page 14 of 29
E5D01

What is the result of conductor skin effect?

E5D02

Why is it important to keep lead lengths short for components used in circuits for VHF and above?

E5D03

What is the phase relationship between current and voltage for reactive power?

E5D04

Why are short connections used at microwave frequencies?

E5D05

What parasitic characteristic causes electrolytic capacitors to be unsuitable for use at RF?

E5D06

What parasitic characteristic creates an inductor’s self-resonance?

E5D07

What combines to create the self-resonance of a component?

E5D08

What is the primary cause of loss in film capacitors at RF?

E5D09

What happens to reactive power in ideal inductors and capacitors?

E5D10

As a conductor’s diameter increases, what is the effect on its electrical length?

E5D11

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?

E5D12

What is reactive power?

E6A01

In what application is gallium arsenide used as a semiconductor material?

E6A02

Which of the following semiconductor materials contains excess free electrons?

E6A03

Why does a PN-junction diode not conduct current when reverse biased?

E6A04

What is the name given to an impurity atom that adds holes to a semiconductor crystal structure?

E6A05

How does DC input impedance at the gate of a field-effect transistor (FET) compare with that of a bipolar transistor?

E6A06

What is the beta of a bipolar junction transistor?

E6A07

Which of the following indicates that a silicon NPN junction transistor is biased on?

E6A08

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.