What does calibration ensure in electrical measurement systems? A Accuracy B Sensitivity C Voltage D Power Explanation Calibration ensures that an instrument provides accurate measurements by comparing it to a known reference. By adjusting the…
What is accuracy in electrical measurements? A Consistency of results B Repeatability of measurements C Closeness to true value D Ability to measure small values Explanation Accuracy refers to how close a measured value is…
What is the purpose of a frequency meter? A Measure voltage B Measure frequency C Measure current D Measure power Explanation A frequency meter is used to measure the frequency of an alternating current (AC)…
Which device is used to measure electrical potential difference? A Ammeter B Wattmeter C Voltmeter D Ohmmeter Explanation A voltmeter is used to measure the potential difference (voltage) between two points in a circuit. It…
What is the main purpose of signal conditioning in measurement systems? A Convert signals B Amplify signals C Filter noise D Improve signal quality Explanation Signal conditioning modifies raw sensor signals into a form suitable…
What is the main function of a wattmeter? A Measure frequency B Measure power C Measure voltage D Measure resistance Explanation A wattmeter is used to measure the electrical power in a circuit. It works…