Measurement and Instrumentation Ryall crest voltmeter is used for measurement of AC voltage of any form High DC voltage Low frequency voltage High AC voltage AC voltage of any form High DC voltage Low frequency voltage High AC voltage ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A 1 mA meter is to be converted to 1 A ammeter. The meter resistance is 100 Ω. The value of shunt resistance 1000 Ω. 100 Ω. 0.001 Ω. 0.1001 Ω. 1000 Ω. 100 Ω. 0.001 Ω. 0.1001 Ω. 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 250 Hz. 500 Hz. 400 Hz. 625 Hz. 250 Hz. 500 Hz. 400 Hz. 625 Hz. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The resistance offered to the passage of an in-varying current by a column of mercury at the temperature of melting ice of mass 14.4521 gms of uniform cross-sectional area and length 106.3cm is Standard ohm One international ohm One ohm according to SI units One ohm according to working standards Standard ohm One international ohm One ohm according to SI units One ohm according to working standards ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In DC potentiometer measurments, a second reading is often taken after reversing the polarities of the DC supply and the unknown voltage and the average of the two reading is taken. This is with a view of eliminate the effects of Stray magnetic fields. Errorneous standardisation. Stray thermal emfs. Ripples of the DC supply. Stray magnetic fields. Errorneous standardisation. Stray thermal emfs. Ripples of the DC supply. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The internal resistance of Weston standard cell is of order of 100 ohm. 1000 ohm. 1 ohm. 10 ohm. 100 ohm. 1000 ohm. 1 ohm. 10 ohm. ANSWER DOWNLOAD EXAMIANS APP
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