Process Control and Instrumentation Resistance of a gas in a vessel is given by (where, P = pressure, V = volume of the vessel, n = no. of moles of the gas, R = gas constant) V/nRT nRT/P nRT/V p/nRT V/nRT nRT/P nRT/V p/nRT ANSWER DOWNLOAD EXAMIANS APP
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? Iron-constantan Chromel-alumel Platinum-platinum + rhodium Copper-constantan Iron-constantan Chromel-alumel Platinum-platinum + rhodium Copper-constantan ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Phase lag of the frequency response of a second order system to a sinusoidal forcing function Is 120° Is 90° at the most Is 30° Approaches 180° asymptotically Is 120° Is 90° at the most Is 30° Approaches 180° asymptotically ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Bourdon gauges are used for measuring pressure (kg/cm² ) < atmospheric > 2 (gauge) > 10 (absolute) < 2 (gauge) < atmospheric > 2 (gauge) > 10 (absolute) < 2 (gauge) 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
Process Control and Instrumentation Conversion formula for converting amplitude ratio (AR) into decibels is Decibel = 20 log10 (AR)0.5 Decibel = 20 log10 (AR) Decibel = 20 loge (AR)0.5 Decibel = 20 loge (AR) Decibel = 20 log10 (AR)0.5 Decibel = 20 log10 (AR) Decibel = 20 loge (AR)0.5 Decibel = 20 loge (AR) ANSWER DOWNLOAD EXAMIANS APP
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