Process Control and Instrumentation Which of the following thermocouples is the most suitable for measuring a temperature of about 1600°C in an oxidizing atmosphere? Platinum-platinum + rhodium Iron-constantan Chromel-alumel Copper-constantan Platinum-platinum + rhodium Iron-constantan Chromel-alumel Copper-constantan ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Composition of natural gas is determined by the Haldane apparatus Chromatograph Mass spectrometer Both B and C Haldane apparatus Chromatograph Mass spectrometer Both B and C ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Working principle of radiation pyrometer is based on the Wien's law Kirchoffs law Seebeck effect Stafan-Boltzman law Wien's law Kirchoffs law Seebeck effect Stafan-Boltzman law ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Vapour actuated pressure spring thermometer does not require ambient temperature compensation. Ambient temperature compensation is provided in gas or liquid expansion pressure spring thermometer by Reducing the volume of the receiving element to a minimum Reducing the volume of the capillary to a minimum All of these Making the volume of thermometer bulb as large as conveniently possible Reducing the volume of the receiving element to a minimum Reducing the volume of the capillary to a minimum All of these Making the volume of thermometer bulb as large as conveniently possible ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Accurate temperature measurement performance of a radiation pyrometer can not be affected, if the Object has varying emissivity Enhancement or attentuation of redia-tion occurs in the sighting path Object is transparent Object and surrounding are at almost the same temperature Object has varying emissivity Enhancement or attentuation of redia-tion occurs in the sighting path Object is transparent Object and surrounding are at almost the same temperature ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Temperature of __________ can not be measured by an optical or radiation pyrometer. Hot blast (air) from stoves Molten slag flowing out of blast furnace Combustion space in boilers Rotary limestone calcination kiln Hot blast (air) from stoves Molten slag flowing out of blast furnace Combustion space in boilers Rotary limestone calcination kiln ANSWER DOWNLOAD EXAMIANS APP
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