Measurement and Instrumentation The errors introduced by an instrument fall in which category ? Gross errors Random errors Environmental errors Systematic errors Gross errors Random errors Environmental errors Systematic errors 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 Errorneous standardisation. Ripples of the DC supply. Stray magnetic fields. Stray thermal emfs. Errorneous standardisation. Ripples of the DC supply. Stray magnetic fields. Stray thermal emfs. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A multirange instrument has Multicoil arrangement Multiple shunt or series resistance inside the meter Multirange meters inside the measurement system Variable turns of coil Multicoil arrangement Multiple shunt or series resistance inside the meter Multirange meters inside the measurement system Variable turns of coil ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A 10MHz CRO has 10MHz horizontal oscillator 5MHz sweep 10MHz vertical oscillator 10MHz supply frequency 10MHz horizontal oscillator 5MHz sweep 10MHz vertical oscillator 10MHz supply frequency ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The coil of a moving coil meter has 100 turns, is 40 mm long and 30 mm wide. The control torque is 240×10-6 N-m on full scale. If magnetic flux density is 1Wb/m2 range of meter is 2 mA. 1 mA. 3 mA. 4 mA. 2 mA. 1 mA. 3 mA. 4 mA. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation If two 300V full scale voltmeters V1 and V2 having sensitivities of 100 kOhm/V and 150 kOhm/V are connected in series to measure 500V then V1 = 300V and V2 = 200V. V1 = 0V and V2 = 0V. V1 = 250V and V2 = 250V. V1 = 200V and V2 = 300V. V1 = 300V and V2 = 200V. V1 = 0V and V2 = 0V. V1 = 250V and V2 = 250V. V1 = 200V and V2 = 300V. ANSWER DOWNLOAD EXAMIANS APP
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