Measurement and Instrumentation Purely mechanical instrument cannot be used for dynamic measurements because they have large time constant. high inertia. All of these higher response time. large time constant. high inertia. All of these higher response time. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A first order instrument is characterized by Static sensitivity, damping coefficient and natural frequency of oscillations Time constant only Static sensitivity and damping coefficient Static sensitivity and time constant Static sensitivity, damping coefficient and natural frequency of oscillations Time constant only Static sensitivity and damping coefficient Static sensitivity and time constant ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation One single phase wattmeter operating on 230V and 5A for 5 hours makes 1940 revolutions. Meter constant in revolutions is 400. What is the power factor of the land? 1 0.73 0.84 0.65 1 0.73 0.84 0.65 ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In figure Z1 = 200∠60° ohm. Z2 = 400∠-90° ohm, Z3 = 300∠0° ohm. Then Z4 for bridge to be balanced is 400∠-90° ohm. 600∠-150° ohm. 300∠90° ohm. 150∠30° ohm. 400∠-90° ohm. 600∠-150° ohm. 300∠90° ohm. 150∠30° ohm. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A dynamometer wattmeter can be used for Both DC and AC Any of the listed here AC only DC only Both DC and AC Any of the listed here AC only DC only ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The terminals across the source are ______________________________ if a current source is to be neglected. open circuited replaced by a capacitor replaced by a source resistance short circuited open circuited replaced by a capacitor replaced by a source resistance short circuited ANSWER DOWNLOAD EXAMIANS APP
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