Measurement and Instrumentation The errors introduced by an instrument fall in which category ? Systematic errors Environmental errors Random errors Gross errors Systematic errors Environmental errors Random errors Gross errors ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The time/div and voltage axes of an oscilloscope have been creased. A student connects a 1 KHz, 5 V P-P square wave calibrition pulse to channel-1 of the scope and observes the screen to be as shown in the upper trace of figure. An unknown signal is connected to channel-2 (lower trace) of the scope. If the time/div and V/div on both channels are the same, the amplitude (P-P) and period of the unknown signal are respectively 7.5 V, 2 ms. 5 V, 2 ms. 5 V, 1 ms. 10 V, 1 ms. 7.5 V, 2 ms. 5 V, 2 ms. 5 V, 1 ms. 10 V, 1 ms. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The maximum percentage error in the sum of two voltage measurements when V1 = 100V ± 1% and V2 = 80V ± 5% is ± 3% ± 4% ± 6% ± 2.8% ± 3% ± 4% ± 6% ± 2.8% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Systematic errors are observational errors. environmental errors. All of these instrument errors. observational errors. environmental errors. All of these instrument errors. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The effect of load resistance is important in measurement of resistance of shunt. resistance of ammeter. both A and B. resistance of shunt winding. resistance of shunt. resistance of ammeter. both A and B. resistance of shunt winding. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of following is not correct? Voltmeter should have very high resistance. An electronic voltmeter draw appreciable current from the source. A shunt should have a very low resistance. An ammeter should have a very low resitance. Voltmeter should have very high resistance. An electronic voltmeter draw appreciable current from the source. A shunt should have a very low resistance. An ammeter should have a very low resitance. ANSWER DOWNLOAD EXAMIANS APP
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