Measurement and Instrumentation When the pointer of an indicating instrument comes to rest in the final deflected position, ______ Only controlling torque acts Both deflecting and controlling torques act None of the listed here Only deflecting torque acts Only controlling torque acts Both deflecting and controlling torques act None of the listed here Only deflecting torque acts ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation What is the expression for momentum? mass × velocity change of velocity / time force × displacement mass × acceleration mass × velocity change of velocity / time force × displacement mass × acceleration 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 50 W. 0 W. 25 W. 100 W. 50 W. 0 W. 25 W. 100 W. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The thermocouple instruments do not have High degree of measuring accuracy Independence of ambient temperature High sensitivity Absence of frequency error High degree of measuring accuracy Independence of ambient temperature High sensitivity Absence of frequency error 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 ? ± 0.054 ± 0.045 ± 0.056 ± 0.065 ± 0.054 ± 0.045 ± 0.056 ± 0.065 ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A transducer measures a range of 0 – 200 N force with a resolution of 0.15 percent of full scale. What is the smallest change which can be measured by this transducer ? 3.33 N 6.66 N 0.3 N 0.15 N 3.33 N 6.66 N 0.3 N 0.15 N ANSWER DOWNLOAD EXAMIANS APP
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