Measurement and Instrumentation The problem of Electrostatic coupling in a transformer is acute at High frequencies Low frequencies High load on the transformer Power frequencies High frequencies Low frequencies High load on the transformer Power frequencies ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A Lissajous pattern on an oscilloscope has 5 horinzontal tangencies and 2 vertical tangencies. The frequency of horizontal input is 100 Hz. The frequency of the vertical will be 400 Hz. 625 Hz. 250 Hz. 500 Hz. 400 Hz. 625 Hz. 250 Hz. 500 Hz. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation An oscilloscope indicates Peak to peak value of voltage RMS value DC value of voltage Average value Peak to peak value of voltage RMS value DC value of voltage Average value ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of the following devices may be used for extending the range of instruments? Potential transformers All of the listed here Shunt Current transformers Potential transformers All of the listed here Shunt Current transformers 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 The dynamometer principle can be used for wattmeter only. ammeter only. voltmeter only. ammeter, voltmeter and wattmeter. wattmeter only. ammeter only. voltmeter only. ammeter, voltmeter and wattmeter. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS