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. 63.25o. 105.6o. 150o. 30o. 63.25o. 105.6o. 150o. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A moving coil permanent magnet instrument can be used as ______ by using a low resistance shunt. Flux meter Ballastic galvanometer Voltmeter Ammeter Flux meter Ballastic galvanometer Voltmeter Ammeter ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation How many time-base circuits does a dual face CRO can have? 1. 2. 3. 4. 1. 2. 3. 4. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The circuit in figure is used to measure the power consumed by the load. The current coil and the voltage coil of the wattmeter have 0.02 Ω and 1000 Ω resistance respectively. The measured power compared to the load power will be 0.4% less. 0.2% less. 0.4 more. 0.2% more. 0.4% less. 0.2% less. 0.4 more. 0.2% more. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A sampling wattmeter is used to measure the average power of a load. The peak to peak voltage of a square wave is 10 V and the current is triangular wave of 5 Amp P-P as shown in the figure. The period is 20 ms. The reading in W will be 100 W. 25 W. 0 W. 50 W. 100 W. 25 W. 0 W. 50 W. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The three resistors R1, R2 and R3 have the following ratings: R1 = 25Ω ± 4%, R2 = 65 Ω ± 4%; R3 =45 Ω ± 4%. If the resistance are connected in series, then limiting error produced in equivalent resistance is 1% 2% 3% 4% 1% 2% 3% 4% ANSWER DOWNLOAD EXAMIANS APP
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