Measurement and Instrumentation The chemical effect of current is used in C. ammeter C. ammeter hour meter C. energy meter None of these C. ammeter C. ammeter hour meter C. energy meter None of these ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Some wire- wound resistors have bifilar winding. This type of winding is used to Reduce the inductance of winding Double the power rating of the resistor Increase the thermal stability Reduce the tolerance Reduce the inductance of winding Double the power rating of the resistor Increase the thermal stability Reduce the tolerance ANSWER DOWNLOAD EXAMIANS APP
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 1 0.65 0.73 0.84 1 0.65 0.73 ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Consider the following statement - 1. The compensating coil of a low power factor wattmeter compensates the effect of the impedance of the current coil. 2. The compensating coil of a low power factor wattmeter compensates the effect of the impedance of the voltage coil circuit. Both 1 and 2 are true. 1 is false but 2 is true. 1 is true but 2 is false. Both 1 and 2 are false. Both 1 and 2 are true. 1 is false but 2 is true. 1 is true but 2 is false. Both 1 and 2 are false. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of the following are integrating instruments? Ammeters Voltmeters Ampere hour and watt hour meters Wattmeters Ammeters Voltmeters Ampere hour and watt hour meters Wattmeters ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Resolution of an instrument is ability to distinguish polarity. the maximum quantity it can measure. the minimum quantity it can measure. the maximum non linearity. ability to distinguish polarity. the maximum quantity it can measure. the minimum quantity it can measure. the maximum non linearity. ANSWER DOWNLOAD EXAMIANS APP
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