Measurement and Instrumentation Which of the following are integrating instruments? Voltmeters Ammeters Ampere hour and watt hour meters Wattmeters Voltmeters Ammeters Ampere hour and watt hour meters Wattmeters ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A single phase load is connected between R and Y terminals of a 415 V, symmetrical, 3-phase, 4 wire system with phase sequence RYB. A wattmeter is connected in the system as shown in figure. The power factor of the load is 0.8 lagging. The wattmeter will read - 597 W. + 795 W. - 795 W. + 597 W. - 597 W. + 795 W. - 795 W. + 597 W. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Kelvin’s double bridge is used to measure low resistance because it has high sensitivity. there is no thermo electric emf. effect of contact and lead resistance is eliminated. resistance variation due to temperature. it has high sensitivity. there is no thermo electric emf. effect of contact and lead resistance is eliminated. resistance variation due to temperature. 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 25.4. 54.2. 31.4. 20. 25.4. 54.2. 31.4. 20. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A 0 - 100 V voltmeter has a guaranteed accuracy of 2 % of full scale reading. The voltage measured by the voltmeter is 75 V. The limiting error is in percentage 2.66 %. 2 %. 1 %. 3.33 %. 2.66 %. 2 %. 1 %. 3.33 %. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation An analog ammeter is a controlling instrument. an indicating instrument. a recording instrument. an absolute instrument. a controlling instrument. an indicating instrument. a recording instrument. an absolute instrument. ANSWER DOWNLOAD EXAMIANS APP
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