Measurement and Instrumentation A moving iron ammeter produces a full scale torque of 240 μNm with a deflection of 120° at a current of 10 A. The rate of change of self induction (μH/radian) of the instrument at full scale is 12.0 μH/radian. 2.0 μH/radian. 4.8 μH/radian. 114.6 μH/radian. 12.0 μH/radian. 2.0 μH/radian. 4.8 μH/radian. 114.6 μH/radian. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation An induction meter can handle current upto 10 A 30 A 60 A 100 A 10 A 30 A 60 A 100 A ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of the following devices may be used for extending the range of instruments? Potential transformers All of the listed here Current transformers Shunt Potential transformers All of the listed here Current transformers Shunt ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Attraction and repulsion type instruments are the two different types of which instrument ? Multipliers. Dynamo-meter type. Induction type. Moving iron type. Multipliers. Dynamo-meter type. Induction type. Moving iron type. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Why is a MISC meter not recommended for DC measurement? The error is high due to hysteresis effect The meter does not respond to DC signals The meter is calibrated for AC and it’s error for DC would be high The error is high due to eddy current effect The error is high due to hysteresis effect The meter does not respond to DC signals The meter is calibrated for AC and it’s error for DC would be high The error is high due to eddy current effect ANSWER DOWNLOAD EXAMIANS APP
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. 5.78 A. 4.47 A. 4 A. 2 A. 5.78 A. 4.47 A. 4 A. ANSWER DOWNLOAD EXAMIANS APP
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