Measurement and Instrumentation A wheatstone bridge cannot be used for precision measurements because errors are introduced into on account of Thermoelectric emfs. Resistance of connecting leads. All of above. Contact resistance. Thermoelectric emfs. Resistance of connecting leads. All of above. Contact resistance. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The operating voltage of a megger is about 100 V 12 V 40 V 6 V 100 V 12 V 40 V 6 V ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A resistance of 105 ohms is specified using significant figures as indicated below : 1. 105 ohms 2. 105.0 ohms 3. 0.000105 mega ohms Among these, 2 and 3 represent greater precision than 1. 1 represents greater precision than 2 and 3. 1, 2 and 3 represent same precision. 2 represents greater precision but 1 and 3 represent same precision. 2 and 3 represent greater precision than 1. 1 represents greater precision than 2 and 3. 1, 2 and 3 represent same precision. 2 represents greater precision but 1 and 3 represent same precision. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation An Ohmmeter is a Moving iron instrument Moving coil instrument Dynamometer instrument None of the listed here Moving iron instrument Moving coil instrument Dynamometer instrument None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A CRO can display Both AC and DC signals AC signals DC signals Time invariant signals Both AC and DC signals AC signals DC signals Time invariant signals ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A thermometer having first order dynamics is subjected to a sudden temperature change of 30oc to 150oc. If it has he time constant of 5 sec, what temperature will be indicated by after 5 sec? 30o. 105.6o. 63.25o. 150o. 30o. 105.6o. 63.25o. 150o. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS