Measurement and Instrumentation Which instrument has identical calibration for ac as well as dc values? Moving iron type Moving coil type Induction type Hot wire type Moving iron type Moving coil type Induction type Hot wire type ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A 50 Hz bar primary CT has a secondary with 500 turns. The secondary supplies 5 A current into a purely resistive burden of 1Ω. The magnetizing ampere-turn is 200. The phase angle between the primary and secondary current is 175.4o. 4.6o. 85.4o. 94.6o. 175.4o. 4.6o. 85.4o. 94.6o. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A PMMC voltmeter is connected across a series combination of a DC voltage source V1 = 2 V and an AC voltage source V2 = 3sin4t, the voltmeters reads 5 V. 0 V. (2 + √3/2)V. 2 V. 5 V. 0 V. (2 + √3/2)V. 2 V. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of the following is a variable displacement transducer? tachometer potentiometer synchros None of these tachometer potentiometer synchros None of these ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A CRO can display Both AC and DC signals AC signals Time invariant signals DC signals Both AC and DC signals AC signals Time invariant signals DC signals ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A set of independent current measurements taken by four observers was recorded as : 117.02 mA, 117.11 mA, 117.08 mA and 117.03 mA. What is the range of error ? ± 0.065 ± 0.056 ± 0.054 ± 0.045 ± 0.065 ± 0.056 ± 0.054 ± 0.045 ANSWER DOWNLOAD EXAMIANS APP
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