Measurement and Instrumentation An electrodynamic meter can be used to measure both AC and DC voltage. DC current. DC voltage. AC volatge. both AC and DC voltage. DC current. DC voltage. AC volatge. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The errors mainly caused by human mistakes are instrumental error. observational error. gross error. systematic error. instrumental error. observational error. gross error. systematic error. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Comparison methods are used when a high accuracy of measurement is required. because they are most simple. because they take least time in measurement. because they are expensive. when a high accuracy of measurement is required. because they are most simple. because they take least time in measurement. because they are expensive. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A metal strain gauge has a gauge factor of two. Its nominal resistance is 120 ohms. If it undergoes a strain of 10-5, the value of change of resistance in response to the strain is 0.0024 Ohm. 0.0012 Ohm. 120 Ohm. 240 Ohm. 0.0024 Ohm. 0.0012 Ohm. 120 Ohm. 240 Ohm. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The pointer of an indicating instrument is generally made of _______ Aluminium Copper Soft steel Silver Aluminium Copper Soft steel Silver ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In DC potentiometer measurments, a second reading is often taken after reversing the polarities of the DC supply and the unknown voltage and the average of the two reading is taken. This is with a view of eliminate the effects of Ripples of the DC supply. Errorneous standardisation. Stray magnetic fields. Stray thermal emfs. Ripples of the DC supply. Errorneous standardisation. Stray magnetic fields. Stray thermal emfs. ANSWER DOWNLOAD EXAMIANS APP
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