Measurement and Instrumentation To the y input of a CRO a signal defined by 10sin100t is applied. To the x input the signal 10cos100t is fed. The gain for both x-channel and y-channel is the same. The screen shows a straight line. sinisoidal. a circle. an ellipse. a straight line. sinisoidal. a circle. an ellipse. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The smallest change in measured variable to which instrument will respond is accuracy. sensitivity. precision. resolution. accuracy. sensitivity. precision. resolution. 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 ± 2.4% ± 1% ± 1.4% ± 3.4% ± 2.4% ± 1% ± 1.4% ± 3.4% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The transfer instrument which is used for standardization of a polar type AC potentiometer is an electrostatic instrument. a dynamometer instrument. a moving coil instrument. a thermal instrument. an electrostatic instrument. a dynamometer instrument. a moving coil instrument. a thermal instrument. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A high frequency AC signal is applied to a PMMC instrument. The RMS value of the AC signal is 2V, the reading of the instrument is 2√2V. 2V. Zero. √2V. 2√2V. 2V. Zero. √2V. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of following is not correct? Voltmeter should have very high resistance. A shunt should have a very low resistance. An ammeter should have a very low resitance. An electronic voltmeter draw appreciable current from the source. Voltmeter should have very high resistance. A shunt should have a very low resistance. An ammeter should have a very low resitance. An electronic voltmeter draw appreciable current from the source. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS