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
#1. The interference brought about by the resultant signal from addition and subtraction of two or more signals is called
#2. If the frequency is 400 Mhz, what is the wavelength?
#3. Yellow, Orange, Brown
#5. The circuit element that opposes any change in voltage.
#6. What is the symbol of Inductance?
#7. The frequency band used for shortwave radio broadcast is on
#9. Give the decimal equivalent of a microfarad
#10. The equipment is a simple audio amplifier with high impedance input used to “hear” a signal in a circuit.
#11. In order to be sure that the amateur radio station is operating within the authorized band limits, the licensed amateur must use
#12. Two identical inductors valued at 60 henrys are connected in series, the total equiv. inductance is
#13. To effect maximum transfer of power from the final output stage of a transmitter to the antenna, there must be
#14. What is the test instrument used to measure resistance with value less than one ohm?
#15. A frequency band where Audio Waves fall.
#16. The radiation intensity of an antenna is measured with
#17. What is the second harmonic of 1200 Hz?
#18. No. 16 copper wire has a resistance of 0.85 ohms per 1 meter. What is the resistance of 2 kilometer of this wire?
#19. An instrument which is designed to produce a range of frequencies in the AF and RF bands in known as
#20. What SWR among those mentioned shows the worst impedance match between transmission line and antenna?
#21. What is the capacitance of a 12 uF capacitor in parallel with a 6 uF capacitor?
#22. A voltmeter connected across a resistance reads 52V and an ammeter connected in series with the resistance reads 1.3A. What is the value of the resistance?
#23. The resistance of an open circuit.
#24. What is the symbol of Resistance?
#25. Frequency of operations when the wavelength of the radio signal is one meter long.
