Disclaimer: We made a question pool available to the public to test their readiness to take the NTC Amateur Radio Exam. The question provided herein are taken from various review materials and are not the actual questions given by the NTC. These questions are only for review purposes. By answering these sample questions, you hereby agree to free CHARL from any accountabilities or liabilities resulting from the use or misuse of these materials. 73’s!
Note: As per rules, the examinee must obtain an average of at least 70% of the 3 elements per class, with no score below 50% in any of the elements. We provided a 40-minute limit to answer each element to simulate actual exam conditions.
Class “C” (Technician Class), Element 4
QUIZ START
Results
#1. The resistance of an open circuit.
#2. The extent of reflection of radio waves in a transmission line can be measured with a
#3. The two-tone test is used in SSB transmitter to
#4. What is the capacitance of a 12 uF capacitor in parallel with a 6 uF capacitor?
#5. The circuit element that opposes any change in voltage.
#6. What SWR among those mentioned shows the worst impedance match between transmission line and antenna?
#7. If the transmitter output is not matched with the antenna, what must be the effect aside from reduced power?
#8. Spectrum analyzers are used to present signals in the
#9. What is the test instrument used to measure resistance with value less than one ohm?
#10. What is the symbol of Reactance?
#11. What is the symbol of Inductance?
#12. Give the decimal equivalent of a microfarad
#13. Two identical inductors valued at 60 henrys are connected in series, the total equiv. inductance is
#14. An electrical circuit with predominantly inductive reactance has a(n)
#15. Three cells, each with an EMF of 1.5 and an internal resistance of 0.3 ohms, are connected in series, and a resistance of 14.1 ohms is connected across the group. How much current flows in the circuit?
#16. What is the second harmonic of 1200 Hz?
#17. An electrical circuit with equal reactances is said to be
#18. What is the term used for the phenomenon where most of the radio frequency current flows along the surface of the conductor?
#19. The opposition of a conductor to the flow of electric current.
#20. What is the symbol of Resistance?
#21. Two identical resistors valued at 1000 ohms are connected in series. They are further connected to a 220 V source. What current passes through the resistors?
#22. The interference brought about by the resultant signal from addition and subtraction of two or more signals is called
#23. In order to be sure that the amateur radio station is operating within the authorized band limits, the licensed amateur must use
#24. Frequency of operations when the wavelength of the radio signal is one meter long.
#25. Yellow, Orange, Brown
Finish