Process Control and Instrumentation Temperature of molten pig iron (1450°C) and molten slag (1500°C) flowing out of a blast furnace is measured by a/an Optical pyrometer Radiation pyrometer Chromel-alumel thermocouple Either B or C Optical pyrometer Radiation pyrometer Chromel-alumel thermocouple Either B or C ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Paramagnetism method is not used for the composition determination of __________ in gases. Oxides of nitrogen Any of these Oxygen Carbon dioxide Oxides of nitrogen Any of these Oxygen Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation What is the dynamic error in a critically damped second order instrument for a ramp input (AT)? 2 AT 1.5 AT √AT 0.5 AT 2 AT 1.5 AT √AT 0.5 AT ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation __________ type of element is normally not used in the bimetallic thermometers. Bourdon tube Single helix Multiple helix Flat spiral Bourdon tube Single helix Multiple helix Flat spiral ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation A first order system with unity gain and time constant τ is subjected to a sinusoidal input of frequency w = 1/τ. The amplitude ratio for this system is 1/√2 1 0.25 0.5 1/√2 1 0.25 0.5 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Routh stability method uses __________ loop transfer function. Closed Either A or B Neither A nor B Open Closed Either A or B Neither A nor B Open ANSWER DOWNLOAD EXAMIANS APP
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