Process Control and Instrumentation Thermal wells used in temperature measurements should have Very thick walls High transmissivity of radiation Polished surface Low emissivity Very thick walls High transmissivity of radiation Polished surface Low emissivity ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The temperature range for which copper resistance thermometer can be used is __________ °C 0 to 150 350 to 750 500 to 900 -200 to 150 0 to 150 350 to 750 500 to 900 -200 to 150 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Thermistors are made of Iron-copper alloys Metal oxides Nickel-chromium alloys Ultra pure metals Iron-copper alloys Metal oxides Nickel-chromium alloys Ultra pure metals ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Thermocouple in a thermal well behaves as a true Multiple first order system Second order system (underdamped) Second order system (overdamped) First order system Multiple first order system Second order system (underdamped) Second order system (overdamped) First order system 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 High thermal conductivity All of these Large area but small mass Small specific heat High thermal conductivity All of these Large area but small mass Small specific heat ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following is a desirable characteristic of an instrument? High fidelity High drift Poor reproducibility High measuring lag High fidelity High drift Poor reproducibility High measuring lag ANSWER DOWNLOAD EXAMIANS APP
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