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E1: Commission's Rules
E2: Operating Procedures
E3: Radio Wave Propagation
E4: Amateur Practices
E5: Electrical Principles
E6: Circuit Components
E7: Practical Circuits
E8: Signals and Emissions
E9: Antennas and Transmission Lines
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Element 4
E7
E7A
E7A08
E7A08:
What logical operation does an OR gate perform?
It produces logic 1 at its output if any or all inputs are logic 1
It produces logic 0 at its output if all inputs are logic 1
It only produces logic 0 at its output when all inputs are logic 1
It produces logic 1 at its output if all inputs are logic 0
E7A01
E7A02
E7A03
E7A04
E7A05
E7A06
E7A07
E7A08
E7A09
E7A10
E7A11