Process Control and Instrumentation Which of the following is an undesirable dynamic characteristic of an instrument? Reproducibility Static error Dead zone Time lag Reproducibility Static error Dead zone Time lag ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation A pyrheliometer is an instrument used for measuring the Diffuse radiation Bright sunshine period None of these Beam radiation Diffuse radiation Bright sunshine period None of these Beam radiation ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Time constant is the Same as transportation lag Same as dead time Time required by the measured variable to reach 63.2% of its ultimate change Time taken by the controlled variable to reach 63.2% of its full change Same as transportation lag Same as dead time Time required by the measured variable to reach 63.2% of its ultimate change Time taken by the controlled variable to reach 63.2% of its full change ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Emf developed by a thermocouple while measuring a temperature of 800°C is about 31 mV. The type of thermocouple used is Iron-constantan Platinum-platinum+rhodium None of these Chromel-alumel Iron-constantan Platinum-platinum+rhodium None of these Chromel-alumel ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation A system with a double pole at the origin is unstable since the corresponding term in the time domain Grows exponentially with time Decays linearly with time Is a constant Grows linearly with time Grows exponentially with time Decays linearly with time Is a constant Grows linearly with time ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Radiation pyrometers as compared to thermocouples Can measure higher temperature Can't measure the temperature of moving objects Is more affected by corrosive atmosphere Has a slower speed of response Can measure higher temperature Can't measure the temperature of moving objects Is more affected by corrosive atmosphere Has a slower speed of response ANSWER DOWNLOAD EXAMIANS APP
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