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Element 3

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 3


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#1 The circuit element that stores an electric charge is

#2 What is to be provided in house entrance of circuit switches in order to ensure that radio or other equipment when short-circuited will not cause fire of electric origin.

#3 Audio frequency waves are also known as

#4 The circuit element that opposes any change in current.

#5 Three identical capacitors rated at 120 uf each are connected in series. What is their equivalent capacitance?

#6 An example of a good semi-conductor.

#7 Frequencies comprising Very High Frequency.

#8 An instrument used to measure voltage.

#9 Unit of electric energy.

#10 Short circuit has a resistance equivalent to

#11 The instrument used to measure voltage is

#12 A voltage of 110 Volts across a resistor causes a current of 5 Ampere to flow through the resistor. How much power is expended in the resistor?

#13 The logarithm of the ratio of output power over the input power multiplied by 10 is

#14 To be able to get 4.5 volts dc, use ordinary flashlight battery and convert them as follows:

#15 Audio Frequency waves are also known as

#16 A carbon resistor color coded green, black, orange has a resistance equal to

#17 Cells should be connected in series

#18 For maximum current, dry cells should be connected

#19 Two identical resistors are connected in parallel, what is the resultant resistance?

#20 A device used to connect a balanced line to an unbalanced line.

#21 What is the unit of Resistance?

#22 1 micro henry is equal to

#23 Plastic is an example of a(n)

#24 The larger the diameter of the copper wire, the

#25 What is the value of carbon resistor colored – “brown, red, yellow.”