Measurement and Instrumentation Which of the following quantities consists of S.I. unit as Hertz? Force Power Frequency Charge Force Power Frequency Charge ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation For measurement of high direct voltage, one would use _____ voltmeter. Hot wire PMMC Electrostatic Moving iron Hot wire PMMC Electrostatic Moving iron ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The power factor of a single phase load can be calculated if the instruments available are One voltmeter and one ammeter One voltmeter, one ammeter and one wattmeter One ammeter, one voltmeter and one energy meter Any of the listed here One voltmeter and one ammeter One voltmeter, one ammeter and one wattmeter One ammeter, one voltmeter and one energy meter Any of the listed here ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In a dynamometer wattmeter, the moving coil is the Current coil and potential coil None of the listed here Current coil Potential coil Current coil and potential coil None of the listed here Current coil Potential coil ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation It is found that 10A current passes through a resistor of 10°hms. The resistor has 5% tolerance . The error in measurement of current can be as high as 5%. What is max error in measurement of power, calculated from measured value of I and the nominal value of resistor? 50W 200W 150W 100W 50W 200W 150W 100W 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 Errorneous standardisation. Ripples of the DC supply. Stray thermal emfs. Stray magnetic fields. Errorneous standardisation. Ripples of the DC supply. Stray thermal emfs. Stray magnetic fields. ANSWER DOWNLOAD EXAMIANS APP
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