Measurement and Instrumentation One single phase wattmeter operating on 230V and 5A for 5 hours makes 1940 revolutions. Meter constant in revolutions is 400. What is the power factor of the land? 0.84 0.73 0.65 1 0.84 0.73 0.65 1 ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The use of thermocouple meters for AC measurement leads to scale which is square law. logarithmic. linear. expontial. square law. logarithmic. linear. expontial. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation What is the expression for acceleration? Force x displacement Mass x velocity Mass x acceleration Change in velocity / time Force x displacement Mass x velocity Mass x acceleration Change in velocity / time ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The total current I = I1 + I2 in a circuit is measured I1 = 150 ± 3A , I2 = 250 ± 4 A, where the limits of error are given as standard deviations. I is measured as (400 ± 1) A (400 ± 3) A (400 ± 2.24) A (400 ±5) A (400 ± 1) A (400 ± 3) A (400 ± 2.24) A (400 ±5) A ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A bridge circuit is shown in the figure below. Which one of the sentence given below is most suitable for balancing the bridge? First adjust R4 and then adjust R2. First adjust R2 and then adjust R3. First adjust R4 and then adjust R1. First adjust R2 and then adjust R4. First adjust R4 and then adjust R2. First adjust R2 and then adjust R3. First adjust R4 and then adjust R1. First adjust R2 and then adjust R4. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation For measurement of high direct voltage, one would use _____ voltmeter. PMMC Hot wire Moving iron Electrostatic PMMC Hot wire Moving iron Electrostatic ANSWER DOWNLOAD EXAMIANS APP
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