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. Nyquist Bode stability None of these Routh stability Nyquist Bode stability None of these Routh stability ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Liquid flow rate in an open channel can not be measured by a/an Cipolletti weir Rectangular weir V-notch Orifice meter Cipolletti weir Rectangular weir V-notch Orifice meter ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Presence of a small amount of water in the organic systems can be determined by the __________ method. Emission spectroscopy Polarimetry Dielectric constant end loss factor Electrical conductivity Emission spectroscopy Polarimetry Dielectric constant end loss factor Electrical conductivity ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following temperature measuring instruments need not touch the object whose temperature is being measured? Filled system thermometer Radiation/infrared pyrometer Thermo electric pyrometer Mercury in glass thermometer Filled system thermometer Radiation/infrared pyrometer Thermo electric pyrometer Mercury in glass thermometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation __________ are analysed using a polarograph. Liquids Solids Gases Isotonic solutions Liquids Solids Gases Isotonic solutions 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 Platinum-platinum+rhodium Chromel-alumel Iron-constantan Either A, B or C Platinum-platinum+rhodium Chromel-alumel Iron-constantan ANSWER DOWNLOAD EXAMIANS APP
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