Measurement and Instrumentation The problem of Electrostatic coupling in a transformer is acute at High frequencies Power frequencies High load on the transformer Low frequencies High frequencies Power frequencies High load on the transformer Low frequencies 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 A is true R is false. Both A and R is true and R is not correct explanation of A. Both A and R is true and R is correct explanation of A C. A is false R is true. A is true R is false. Both A and R is true and R is not correct explanation of A. Both A and R is true and R is correct explanation of A C. A is false R is true. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation When testing a coil having a resistance of 10 ohms, resonance occurred when the oscillator frequency was 10 MHz and rotating capacitor was set at 500/2π pF. The effective value of the Q of the coil is 54.2. 25.4. 20. 31.4. 54.2. 25.4. 20. 31.4. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which one of the following meters has maximum loading effect on the circuit under measurement ? 1000 Ω/volt 10 MΩ/volt 100 Ω/volt 1 MΩ/volt 1000 Ω/volt 10 MΩ/volt 100 Ω/volt 1 MΩ/volt ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A dynamometer wattmeter can be used for Both DC and AC AC only Any of the listed here DC only Both DC and AC AC only Any of the listed here DC only ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A pressure measurement instrument is calibrated between 10 bar and 260 bar. The scale span of the instrument is 250 bar. 260 bar. 10 bar. 270 bar. 250 bar. 260 bar. 10 bar. 270 bar. ANSWER DOWNLOAD EXAMIANS APP
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