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 Copper-constantan Chromel-alumel Platinum-platinum + rhodium Iron-constantan Copper-constantan Chromel-alumel ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation __________ are analysed using a polarograph. Liquids Solids Isotonic solutions Gases Liquids Solids Isotonic solutions Gases ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following measurements can be made by the measurement of emf? All of these PH value Degree of hydrolysis Composition of complex ions All of these PH value Degree of hydrolysis Composition of complex ions ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Minute depression of freezing point of a liquid solvent on addition of a solid solute can be best measured by a Beckman thermometer Bimetallic thermometer Mercury thermometer Dilatometer Beckman thermometer Bimetallic thermometer Mercury thermometer Dilatometer 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 Decays linearly with time Is a constant Grows linearly with time Grows exponentially with time Decays linearly with time Is a constant Grows linearly with time ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Emf generated in a thermocouple depends on the temperature Difference between cold junction and atmospheric temperature Of hot junction only Difference between hot and cold junctions Of cold junction only Difference between cold junction and atmospheric temperature Of hot junction only Difference between hot and cold junctions Of cold junction only ANSWER DOWNLOAD EXAMIANS APP
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