Process Control and Instrumentation Which of the following temperature measuring instruments need not touch the object whose temperature is being measured? Radiation/infrared pyrometer Filled system thermometer Thermo electric pyrometer Mercury in glass thermometer Radiation/infrared pyrometer Filled system thermometer Thermo electric pyrometer Mercury in glass thermometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Stabilising time for the controllers is the time required for the response to reach __________ percent of its ultimate value. 63.2 95 100 87.5 63.2 95 100 87.5 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Emf developed by a thermocouple, while measuring a temperature of 600°C is about 5.5 mV. The type of thermocouple used is Either A, B or C Iron-constantan Chromel-alumel Platinum-platinum+rhodium Either A, B or C Iron-constantan Chromel-alumel Platinum-platinum+rhodium ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following is not classified as a thermo electric pyrometer Thermocouple Optical pyrometer (disappearing filament type) Radiation pyrometer Resistance thermometer Thermocouple Optical pyrometer (disappearing filament type) Radiation pyrometer Resistance thermometer 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 Mercury thermometer Bimetallic thermometer Beckman thermometer Dilatometer Mercury thermometer Bimetallic thermometer Beckman thermometer Dilatometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation A control system is unstable, if the open loop frequency response exhibits an amplitude ratio exceeding unity at the crossover frequency. This is __________ criterion. Bode stability Routh stability Nyquist None of these Bode stability Routh stability Nyquist None of these ANSWER DOWNLOAD EXAMIANS APP
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