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

#2 Connect a resistor in series with a meter to ___________ the measuring range of a voltmeter.

#3 The instrument used to measure resistance is

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

#5 A good measure to prevent the use of the Amateur Radio Station equipment by unauthorized persons is

#6 What is the unit of Wave cycle?

#7 The prefix MEGA means, ten raised to the power

#8 Audio Frequency waves are also known as

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

#10 The shorter the copper wire, the

#11 An ammeter measures

#12 Three resistors each valued at 20 ohms are connected in series. If they are connected in parallel to another resistor whose value is 30 ohms, what is their total equivalent resistances?

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

#14 Ohm’s Law is stated in the following formula:

#15 When current passes through a path of lesser resistance thereby destroying the fuse in a circuit, we say that the circuit has

#16 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.

#17 Siemens is a unit of

#18 Short circuit has a resistance equivalent to

#19 A wheatstone bridge measures

#20 Instrument used to measure electric power.

#21 Plastic is an example of a(n)

#22 Instrument used to measure resistance whose value is less than one ohm.

#23 Copper is an example of

#24 Unit of Capacitance is

#25 What is the unit of Resistance?