Process Control and Instrumentation Working principle of mercury in glass thermometer is Pressure rise with temperature None of these Volumetric expansion Linear expansion Pressure rise with temperature None of these Volumetric expansion Linear expansion ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Time constant is the 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 Same as transportation lag Same as dead time ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation For increased speed of response of an expansion pressure spring thermometer, the thermometer bulb should have a Small specific heat Large area but small mass All of these High thermal conductivity Small specific heat Large area but small mass All of these High thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following controllers has the least maximum deviation? P-I controller P-D controller P-I-D controller P-controller P-I controller P-D controller P-I-D controller P-controller ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation A bimetallic thermometer as compared to industrial mercury in glass thermometer has almost the same Speed of response All of these Temperature measuring range (- 40°C to 450°C) Accuracy (± 1% of span) Speed of response All of these Temperature measuring range (- 40°C to 450°C) Accuracy (± 1% of span) ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Radiation pyrometers as compared to thermocouples Has a slower speed of response Is more affected by corrosive atmosphere Can't measure the temperature of moving objects Can measure higher temperature Has a slower speed of response Is more affected by corrosive atmosphere Can't measure the temperature of moving objects Can measure higher temperature ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS