Process Control and Instrumentation Dome temperature of blast furnace stove is most accurately measured by a Platinum-platinum/rhodium ther-mocuple Radiation pyrometer Iron-constantan thermocouple Platinum resistance thermometer Platinum-platinum/rhodium ther-mocuple Radiation pyrometer Iron-constantan thermocouple Platinum resistance thermometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Hot wire anemometer is used for the measurement of Thermal conductivity of gases Flow rates of fluids Very high temperature Flow rates of granular solids Thermal conductivity of gases Flow rates of fluids Very high temperature Flow rates of granular solids ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following is a 'contact' pyrometer? Radiation pyrometer Resistance pyrometer Optical pyrometer Infra red pyrometer Radiation pyrometer Resistance pyrometer Optical pyrometer Infra red pyrometer 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/6 π/3 5π/12 π/12 π/6 π/3 5π/12 π/12 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Out of the following themocouple wire insulating material, the highest temperature rating is for Ceramic fibre Fibre glass Teflon Asbestos Ceramic fibre Fibre glass Teflon Asbestos ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Starting temperature of optical radiation pyrometer is __________ °C. 1500 1200 800 400 1500 1200 800 400 ANSWER DOWNLOAD EXAMIANS APP
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