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Amateur radio Technician, General and Extra practice test

161 free practice questions for this exam, each with the reason for the answer and where to look it up.

Amateur radio (Technician): practice test

10 questions, graded as you go, with the reason for every answer. No sign-up.

Practice tests that prepare you for this exam

Amateur radio (Technician)

FCC rules, operating procedures, radio waves, electronics, antennas and safety on the syllabus of the amateur radio Technician exam.

161 questions for this exam

About the exam

ExamAmateur radio Technician, General and Extra
Who runs itFCC, volunteer examiners
WhereUnited States

Question count, time limit and pass mark differ by where you take it. Check the official candidate bulletin from the organisation that runs your exam.

Sample questions

A half-wave dipole is strung parallel to the ground. What is the polarization of its signal?

  1. Vertical
  2. Circular
  3. Horizontal
  4. Elliptical
Show the answer

C. Horizontal

Polarization follows the orientation of the radiating element's electric field, so a horizontal wire radiates a horizontally polarized wave. Turning the same dipole upright would make it vertical.

Reference: Antenna fundamentals: polarization

What are the two leads of a semiconductor diode called, and how is one of them often marked?

  1. Anode and cathode; a stripe marks the anode
  2. Anode and cathode; a stripe marks the cathode
  3. Emitter and collector; a dot marks the emitter
  4. Source and drain; a tab marks the source
Show the answer

B. Anode and cathode; a stripe marks the cathode

A diode has an anode and a cathode, and the band printed on the body identifies the cathode end. Emitter, collector, source and drain are transistor terminals.

Reference: Electronic components: diodes

The henry is the unit of which electrical property?

  1. Inductance
  2. Capacitance
  3. Impedance
  4. Frequency
Show the answer

A. Inductance

Inductance is measured in henrys. Capacitance, the property most often swapped with it, is measured in farads.

Reference: Basic electrical units

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