FCCライセンス General 7月 3 2024 SUBELEMENT G6A SUBELEMENT G6A G6A – Resistors; capacitors; inductors; rectifiers; solid-state diodes and transistors; vacuum tubes; batteries 1 / 12 G6A01What is the minimum allowable discharge voltage for maximum life of a standard 12-volt lead-acid battery? A. 6 volts B. 8.5 volts C. 10.5 volts D. 12 volts 2 / 12 G6A02What is an advantage of batteries with low internal resistance? A. Long life B. High discharge current C. High voltage D. Rapid recharge 3 / 12 G6A03What is the approximate forward threshold voltage of a germanium diode? A. 0.1 volt B. 0.3 volts C. 0.7 volts D. 1.0 volts 4 / 12 G6A04Which of the following is characteristic of an electrolytic capacitor? A. Tight tolerance B. Much less leakage than any other type C. High capacitance for a given volume D. Inexpensive RF capacitor 5 / 12 G6A05What is the approximate forward threshold voltage of a silicon junction diode? A. 0.1 volt B. 0.3 volts C. 0.7 volts D. 1.0 volts 6 / 12 G6A06Why should wire-wound resistors not be used in RF circuits? A. The resistor’s tolerance value would not be adequate B. The resistor’s inductance could make circuit performance unpredictable C. The resistor could overheat D. The resistor’s internal capacitance would detune the circuit 7 / 12 G6A07What are the operating points for a bipolar transistor used as a switch? A. Saturation and cutoff B. The active region (between cutoff and saturation) C. Peak and valley current points D. Enhancement and depletion modes 8 / 12 G6A08Which of the following is characteristic of low voltage ceramic capacitors? A. Tight tolerance B. High stability C. High capacitance for given volume D. Comparatively low cost 9 / 12 G6A09Which of the following describes MOSFET construction? A. The gate is formed by a back-biased junction B. The gate is separated from the channel by a thin insulating layer C. The source is separated from the drain by a thin insulating layer D. The source is formed by depositing metal on silicon 10 / 12 G6A10Which element of a vacuum tube regulates the flow of electrons between cathode and plate? A. Control grid B. Suppressor grid C. Screen grid D. Trigger electrode 11 / 12 G6A11What happens when an inductor is operated above its self-resonant frequency? A. Its reactance increases B. Harmonics are generated C. It becomes capacitive D. Catastrophic failure is likely 12 / 12 G6A12What is the primary purpose of a screen grid in a vacuum tube? A. To reduce grid-to-plate capacitance B. To increase efficiency C. To increase the control grid resistance D. To decrease plate resistance Your score isThe average score is 0% 0% Restart quiz Ed 0 コメント
