Measurement and Instrumentation The dynamometer principle can be used for ammeter, voltmeter and wattmeter. ammeter only. wattmeter only. voltmeter only. ammeter, voltmeter and wattmeter. ammeter only. wattmeter only. voltmeter only. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The meter constant of a single phase 240 V induction watthour meter is 400 revolutions per KWh. The speed of the meter disc for a current of 10 Amperes of 0.8 p.f lagging will be 12.8 rpm. 16.02 rpm. 18.2 rpm. 21.1 rpm. 12.8 rpm. 16.02 rpm. 18.2 rpm. 21.1 rpm. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation For a circuit given that I = 2 ± 5 % A, R = 100 ± 0.2 % Ω the limiting error in the power dissipation I2 R in the resistor R is 1.2% 25.2% 5.2% 10.2% 1.2% 25.2% 5.2% 10.2% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation To the y input of a CRO a signal defined by 10sin100t is applied. To the x input the signal 10cos100t is fed. The gain for both x-channel and y-channel is the same. The screen shows sinisoidal. a straight line. an ellipse. a circle. sinisoidal. a straight line. an ellipse. a circle. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation What is the expression for momentum? mass × velocity force × displacement mass × acceleration change of velocity / time mass × velocity force × displacement mass × acceleration change of velocity / time ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of the following are integrating instruments? Voltmeters Wattmeters Ammeters Ampere hour and watt hour meters Voltmeters Wattmeters Ammeters Ampere hour and watt hour meters ANSWER DOWNLOAD EXAMIANS APP
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