Measurement and Instrumentation A thermo couple ammeter gives full scale deflection of 10 A, when it reads one fifth of the scale, the current will be 2 A. 4 A. 5.78 A. 4.47 A. 2 A. 4 A. 5.78 A. 4.47 A. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of the following devices should be used for accurate measurement of low D.C. voltage? Small range thermocouple voltmeter None of these C. potentiometer Small range moving coil voltmeter Small range thermocouple voltmeter None of these C. potentiometer Small range moving coil voltmeter ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The resistance offered to the passage of an in-varying current by a column of mercury at the temperature of melting ice of mass 14.4521 gms of uniform cross-sectional area and length 106.3cm is Standard ohm One ohm according to working standards One ohm according to SI units One international ohm Standard ohm One ohm according to working standards One ohm according to SI units One international ohm ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A 10MHz CRO has 10MHz vertical oscillator 10MHz supply frequency 5MHz sweep 10MHz horizontal oscillator 10MHz vertical oscillator 10MHz supply frequency 5MHz sweep 10MHz horizontal oscillator ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Some wire- wound resistors have bifilar winding. This type of winding is used to Increase the thermal stability Double the power rating of the resistor Reduce the tolerance Reduce the inductance of winding Increase the thermal stability Double the power rating of the resistor Reduce the tolerance Reduce the inductance of winding ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Assertion(A): A low power factor wattmeter has special constructional features to ensure accurate measurment. Reason(R): Extension of wattmeter range in DC circuit can be easily done by using current and potential transformer A is false R is true. Both A and R is true and R is correct explanation of A C. A is true R is false. Both A and R is true and R is not correct explanation of A. A is false R is true. Both A and R is true and R is correct explanation of A C. A is true R is false. Both A and R is true and R is not correct explanation of A. ANSWER DOWNLOAD EXAMIANS APP
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