Measurement and Instrumentation A PMMC voltmeter is connected across a series combination of a DC voltage source V1 = 2 V and an AC voltage source V2 = 3sin4t, the voltmeters reads 5 V. (2 + √3/2)V. 0 V. 2 V. 5 V. (2 + √3/2)V. 0 V. 2 V. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation To measure high frequency currents, we mostly use ______ ammeter. Dynamometer Thermocouple Moving iron Hot wire Dynamometer Thermocouple Moving iron Hot wire ANSWER DOWNLOAD EXAMIANS APP
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 sinisoidal. a circle. an ellipse. a straight line. sinisoidal. a circle. an ellipse. a straight line. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The internal resistance of a milli-ammeter must be very low for high accuracy. minimum effect on the current in the circuit. high precision. high sensitivity. high accuracy. minimum effect on the current in the circuit. high precision. high sensitivity. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Relative error is same as true error. absolute error. ratio of absolute error and true value. None of these true error. absolute error. ratio of absolute error and true value. None of these ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A first order instrument is characterized by Static sensitivity and damping coefficient Static sensitivity and time constant Time constant only Static sensitivity, damping coefficient and natural frequency of oscillations Static sensitivity and damping coefficient Static sensitivity and time constant Time constant only Static sensitivity, damping coefficient and natural frequency of oscillations ANSWER DOWNLOAD EXAMIANS APP
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