Process Control and Instrumentation Radiation pyrometers as compared to thermocouples 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 Can measure higher temperature ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation E.m.f. generated by thermocouples is of the order of Kilo volts Millivolts Volts Microvolts Kilo volts Millivolts Volts Microvolts ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The time constant of a unity gain, first order plus time delay process is 5 min. If the phase lag at a frequency of 0.2 rad/min is 60°, then the dead time (in minutes) is π/12 π/6 5π/12 π/3 π/12 π/6 5π/12 π/3 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following is not a second order instrument? 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 Pressure gauge with one bellow, two tubes and a tank Mercury in glass thermometer with covering ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Starting temperature of optical radiation pyrometer is __________ °C. 1500 1200 400 800 1500 1200 400 800 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The term analogous to the electrical current in a thermal system is the Heat content in the system None of these Heat flow rate Temperature difference Heat content in the system None of these Heat flow rate Temperature difference ANSWER DOWNLOAD EXAMIANS APP
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