Process Control and Instrumentation Which of the following is a desirable characteristic of an instrument? Poor reproducibility High fidelity High measuring lag High drift Poor reproducibility High fidelity High measuring lag High drift ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following is not a second order instrument? Pressure gauge with one bellow, two tubes and a tank Mercury in glass thermometer with covering Bare mercury in glass thermometer None of these Pressure gauge with one bellow, two tubes and a tank Mercury in glass thermometer with covering Bare mercury in glass thermometer None of these ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Dilute wine was used as a thermometric liquid initially to develop temperature scale. First emperical temperature scale developed was the __________ scale. Reaumer Fahrenheit Kelvin Centigrade Reaumer Fahrenheit Kelvin Centigrade ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The transfer function of a first order system is S/(Ts + 1) 1/(Ts + 1) None of these 1/Ts S/(Ts + 1) 1/(Ts + 1) None of these 1/Ts 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 Same as dead time Same as transportation lag Time taken by the controlled variable to reach 63.2% of its full change Time required by the measured variable to reach 63.2% of its ultimate change Same as dead time Same as transportation lag Time taken by the controlled variable to reach 63.2% of its full change ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following temperature measuring instruments need not touch the object whose temperature is being measured? Thermo electric pyrometer Radiation/infrared pyrometer Mercury in glass thermometer Filled system thermometer Thermo electric pyrometer Radiation/infrared pyrometer Mercury in glass thermometer Filled system thermometer ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS