Process Control and Instrumentation Temperature of __________ can not be measured by an optical or radiation pyrometer. Hot blast (air) from stoves Combustion space in boilers Rotary limestone calcination kiln Molten slag flowing out of blast furnace Hot blast (air) from stoves Combustion space in boilers Rotary limestone calcination kiln Molten slag flowing out of blast furnace ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following thermocouples can measure the maximum temperature? Tungsten-molybdenum Iron-constantan Platinum-rhodium Chromel-alumel Tungsten-molybdenum Iron-constantan Platinum-rhodium Chromel-alumel ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Thermal wells are used in the temperature measurement to Increase the sensitivity Increase the fidelity Guard against corrosive and oxidising action on thermocouple materials Reduce measuring lag Increase the sensitivity Increase the fidelity Guard against corrosive and oxidising action on thermocouple materials Reduce measuring lag ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The operation of a rotameter is based on Pressure drop across a nozzle Rotation of a turbine Variable flow area Pressure at a stagnation point Pressure drop across a nozzle Rotation of a turbine Variable flow area Pressure at a stagnation point ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The offset introduced by proportional controller with gain Kc in response of first order system can be reduced by Reducing value of Kc None of these Introducing derivative control Introducing integral control Reducing value of Kc None of these Introducing derivative control Introducing integral control ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The term analogous to the electrical current in a thermal system is the Heat flow rate None of these Heat content in the system Temperature difference Heat flow rate None of these Heat content in the system Temperature difference ANSWER DOWNLOAD EXAMIANS APP
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