Measurement and Instrumentation A sinusoidal signal waveform, when observed on an oscilloscope, has a peak to peak amplitude of 6 cm. If the vertical sensitivity setting is 5 v/cm, then rms value of the voltage will be 15 V. 12.6 V. 10.6 V. 11.1 V. 15 V. 12.6 V. 10.6 V. 11.1 V. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation An induction wattmeter can be used for Dc only Both DC and AC Ac only Any of the listed here Dc only Both DC and AC Ac only Any of the listed here ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of the following quantities consists of S.I. unit as Hertz? Charge Frequency Power Force Charge Frequency Power Force ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A first order instrument is characterized by Static sensitivity, damping coefficient and natural frequency of oscillations Static sensitivity and damping coefficient Static sensitivity and time constant Time constant only Static sensitivity, damping coefficient and natural frequency of oscillations Static sensitivity and damping coefficient Static sensitivity and time constant Time constant only ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation For power measurement of three phase circuit by two wattmeter method, when the value of power factor is less than 0.5 lagging Pressure coil of the wattmeter will become ineffective. Both give the same readings One of the wattmeter connections will have to be reversed One of the wattmeters will read zero Pressure coil of the wattmeter will become ineffective. Both give the same readings One of the wattmeter connections will have to be reversed One of the wattmeters will read zero ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A moving coil of a meter has 100 turns, and a length and depth of 10 mm and 20 mm respectively. It is positioned in a uniform radial flux density of 200 mT. The coil carries a current of 50 mA. The torque on the coil is 2 µNm. 100 µNm. 200 µNm. 1 µNm. 2 µNm. 100 µNm. 200 µNm. 1 µNm. ANSWER DOWNLOAD EXAMIANS APP
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