General exam question G4B09
Subelement G4, AMATEUR RADIO PRACTICES· Group G4B
When is an analog multimeter preferred to a digital multimeter?
- A.When testing logic circuits
- B.When high precision is desired
- C.When measuring the frequency of an oscillator
- D.When adjusting circuits for maximum or minimum values (correct answer)
WhyAn analog multimeter is preferred to a digital multimeter when adjusting circuits for maximum or minimum values. An analog multimeter's needle sweeps continuously and shows trend and direction at a glance, which makes it easier to peak or null a reading while adjusting a circuit than watching a digital display's numbers jump around, so it's preferred when adjusting circuits for maximum or minimum values, answer D. It isn't the better choice for logic-circuit testing, high-precision work, or frequency measurement, a digital meter or dedicated frequency counter wins on all of those.
Published 2026-08-28 · Last updated 2026-08-28 · Question text is verbatim from the 2023-2027 NCVEC Element 3 pool (public domain); the explanation above is original writing, see our methodology.
Related questions
- G4B01What item of test equipment contains horizontal and vertical channel amplifiers?
- G4B02Which of the following is an advantage of an oscilloscope versus a digital voltmeter?
- G4B03Which of the following is the best instrument to use for checking the keying waveform of a CW transmitter?
- G4B04What signal source is connected to the vertical input of an oscilloscope when checking the RF envelope pattern of a transmitted signal?
- G4B05Why do voltmeters have high input impedance?