Process Control and Instrumentation Accurate temperature measurement performance of a radiation pyrometer can not be affected, if the Enhancement or attentuation of redia-tion occurs in the sighting path Object is transparent Object has varying emissivity Object and surrounding are at almost the same temperature Enhancement or attentuation of redia-tion occurs in the sighting path Object is transparent Object has varying emissivity Object and surrounding are at almost the same temperature ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Temperature of molten pig iron (1450°C) and molten slag (1500°C) flowing out of a blast furnace is measured by a/an Chromel-alumel thermocouple Radiation pyrometer Optical pyrometer Either B or C Chromel-alumel thermocouple Radiation pyrometer Optical pyrometer Either B or C ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation A photo electric device in which the resistance of the metal is directly proportional to the light striking on it, is known as photo-conductive cell. Photoelectric transducers are used for the measurement of those parameters, which can be used to produce variation in Light intensity Flux density Current Voltage Light intensity Flux density Current Voltage ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Emf developed by a thermocouple while measuring a temperature of 400°C is 22 mV. The type of thermocouple used is Iron-constantan Chromel-alumel Platinum-platinum+rhyodium Platinum-rhodium Iron-constantan Chromel-alumel Platinum-platinum+rhyodium Platinum-rhodium ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Flow rate of sludge is not measured by a/an Both B & C Kennison nozzle Open weir Orificemeter Both B & C Kennison nozzle Open weir Orificemeter ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation A system with a double pole at the origin is unstable since the corresponding term in the time domain Grows exponentially with time Is a constant Decays linearly with time Grows linearly with time Grows exponentially with time Is a constant Decays linearly with time Grows linearly with time ANSWER DOWNLOAD EXAMIANS APP
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