Process Control and Instrumentation E.m.f. generated by thermocouples is of the order of Microvolts Volts Kilo volts Millivolts Microvolts Volts Kilo volts Millivolts ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following thermocouples is incapable of measuring sub-zero (i.e., < 0°C) temperature? Iron-constantan Copper-constantan Chromel-alumel Platinum-platinum + rhodium Iron-constantan Copper-constantan Chromel-alumel Platinum-platinum + rhodium 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? Carbon-tetrachloride Water Mercury Methyl alcohal Carbon-tetrachloride Water Mercury Methyl alcohal ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following thermocouples will give the highest output for the same value of hot and cold junction temperature? All of these Platinum-platinum + rhodium Iron-constantan Chromel-constantan All of these Platinum-platinum + rhodium Iron-constantan Chromel-constantan ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Mercury thermometer is commonly used for low temperature measruement. The freezing point and boiling point of mercury are respectively __________ °C. - 10 and 425 - 39 and 350 - 51 and 439 - 79 and 395 - 10 and 425 - 39 and 350 - 51 and 439 - 79 and 395 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
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