Process Control and Instrumentation Which of the following thermocouples is incapable of measuring sub-zero (i.e., < 0°C) temperature? Iron-constantan Platinum-platinum + rhodium Copper-constantan Chromel-alumel Iron-constantan Platinum-platinum + rhodium Copper-constantan Chromel-alumel ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Working principle of mercury in glass thermometer is based on volumetric expansion of mercury with increase in temperature. Which of the following undergoes minimum volumetric expansion for a given temperature change? Methyl alcohal Carbon-tetrachloride Mercury Water Methyl alcohal Carbon-tetrachloride Mercury Water ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation A negative gain margin expressed in decibels means a/an __________ system. Stable None of these Unstable Critically damped Stable None of these Unstable Critically damped ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Thermistors are used in __________ devices. Both B & C Temperature compensating Voltage measuring Temperature measuring Both B & C Temperature compensating Voltage measuring Temperature measuring ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Cascade control means One feed-back loop Feed forward control On-off control More than one feed-back loop One feed-back loop Feed forward control On-off control More than one feed-back loop ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Mass spectrometer is used for the composition analysis of Isotopes Alloys None of these Solids Isotopes Alloys None of these Solids ANSWER DOWNLOAD EXAMIANS APP
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