Measurement and Instrumentation The limiting errors of measurement of power consumed by and the current passing through a resistance are ±1.5% and ±1% respectively. What is the limiting error ( in %) of measurement of resistance ? ±3.5% ± 1.5% ± 1% ± 2.5% ±3.5% ± 1.5% ± 1% ± 2.5% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Assertion(A): A low power factor wattmeter has special constructional features to ensure accurate measurment. Reason(R): Extension of wattmeter range in DC circuit can be easily done by using current and potential transformer Both A and R is true and R is correct explanation of A C. A is true R is false. Both A and R is true and R is not correct explanation of A. A is false R is true. Both A and R is true and R is correct explanation of A C. A is true R is false. Both A and R is true and R is not correct explanation of A. A is false R is true. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which devices used to measure the temperature of an object ? Poteintiometer Thermometers Odometer Galvanometer Poteintiometer Thermometers Odometer Galvanometer ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A resistance is measured by the voltmeter-ammeter method employing dc excitation and a voltmeter of very high resistance connected directly across the unknown resistance. If the voltmeter and ammeter reading are subject to maximum possible errors of ± 2.4 % and ± 1.0 % respectively, then the magnitude of the maximum possible percentage error in the value of resistance deduced from the measurement is nearly ± 1.4% ± 2.4% ± 3.4% ± 1% ± 1.4% ± 2.4% ± 3.4% ± 1% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation What are the SI units of mass, length and time respectively? kg, cm and s. g, cm and s. kg, m and s. g, m and s. kg, cm and s. g, cm and s. kg, m and s. g, m and s. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of the following instruments can be used to measure AC current only? Induction type ammeter Moving iron ammeter Permanent Magnet Type ammeter Moving iron voltmeter Induction type ammeter Moving iron ammeter Permanent Magnet Type ammeter Moving iron voltmeter ANSWER DOWNLOAD EXAMIANS APP
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