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 Digital Voltmeter (DVM) 50 Flashcards |
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What is a digital voltmeter abbreviated as? |
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DVM |
Card: 2 / 50 |
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True or False: Digital voltmeters only measure DC voltage. |
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False. Digital voltmeters can measure both AC and DC voltage. |
Card: 4 / 50 |
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Fill in the blank: The output from a digital voltmeter can be fed to ______ for storage. |
Card: 5 / 50 |
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Memory devices |
Card: 6 / 50 |
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Which type of digital voltmeter operates by measuring time using a linear ramp voltage? |
Card: 7 / 50 |
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Ramp type digital voltmeter |
Card: 8 / 50 |
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Riddle: I display voltage in neat digits, I’m portable and precise, my readouts are error-free, what device am I? |
Card: 9 / 50 |
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Digital voltmeter |
Card: 10 / 50 |
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What component generates a rectangular pulse in a digital voltmeter? |
Card: 11 / 50 |
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Pulse generator |
Card: 12 / 50 |
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True or False: Digital voltmeters have a slower response compared to analog voltmeters. |
Card: 13 / 50 |
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False. Digital voltmeters are designed for faster readings. |
Card: 14 / 50 |
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Fill in the blank: The primary purpose of a digital voltmeter is to measure ______ between two points. |
Card: 15 / 50 |
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Potential difference |
Card: 16 / 50 |
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Which of the following is a feature of digital voltmeters? A) High power consumption B) Difficult to read C) Versatile and accurate D) Large size |
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C) Versatile and accurate |
Card: 18 / 50 |
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What advantage do digital voltmeters have over analog voltmeters regarding reading errors? |
Card: 19 / 50 |
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They eliminate observational errors and parallax. |
Card: 20 / 50 |
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Fill in the blank: Digital voltmeters can be classified based on the ______ used for A/D conversion. |
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Method |
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What does the output of an AND gate depend on? |
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Both inputs must be high. |
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True or False: Digital voltmeters can display readings without any calibration. |
Card: 25 / 50 |
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False. They need to be calibrated to ensure accuracy. |
Card: 26 / 50 |
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Which digital voltmeter type uses a comparator to determine when the input voltage matches a ramp voltage? |
Card: 27 / 50 |
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Ramp type digital voltmeter |
Card: 28 / 50 |
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Riddle: I count pulses to measure voltage, my outputs are in volts, what am I? |
Card: 29 / 50 |
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Digital voltmeter |
Card: 30 / 50 |
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What device in a digital voltmeter counts the number of pulses during measurement? |
Card: 31 / 50 |
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Counter |
Card: 32 / 50 |
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Fill in the blank: The output of a digital voltmeter is displayed on a ______. |
Card: 33 / 50 |
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LED or LCD display |
Card: 34 / 50 |
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What is a significant disadvantage of digital voltmeters when measuring fluctuating signals? |
Card: 35 / 50 |
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They may show incorrect readings. |
Card: 36 / 50 |
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Which digital voltmeter type integrates the input voltage over time to generate a corresponding output? |
Card: 37 / 50 |
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Integrating type digital voltmeter |
Card: 38 / 50 |
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True or False: Digital voltmeters are less expensive than analog voltmeters. |
Card: 39 / 50 |
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True. Digital voltmeters are generally more economical. |
Card: 40 / 50 |
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How does a successive approximation digital voltmeter determine the input voltage? |
Card: 41 / 50 |
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By comparing it to a reference voltage using a DAC. |
Card: 42 / 50 |
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Fill in the blank: High-accuracy DVMs have an input resistance of ______ or more for minimum voltage levels. |
Card: 43 / 50 |
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1 GΩ |
Card: 44 / 50 |
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What is the role of the inverter in a digital voltmeter? |
Card: 45 / 50 |
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It inverts the output from the AND gate. |
Card: 46 / 50 |
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Which type of digital voltmeter is known for its ability to handle varying input signals effectively? |
Card: 47 / 50 |
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Dual slope integrating digital voltmeter |
Card: 48 / 50 |
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Riddle: I can measure voltage, current, and resistance, I am a multi-tasker. What am I? |
Card: 49 / 50 |
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Digital multimeter |
Card: 50 / 50 |
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Completed! Keep practicing to master all of them. |
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