Process Control and Instrumentation __________ is undesirable in thermocouples used in industries, Non-linear relation of emf to temperature Linear relation of emf to temperature Oxidation resistance Corrosion resistance Non-linear relation of emf to temperature Linear relation of emf to temperature Oxidation resistance Corrosion resistance ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following thermocouples has the least temperature measurement range? Copper-constantan Platinum-platinum/rhodium Chromel-alumel Iron-constantan Copper-constantan Platinum-platinum/rhodium Chromel-alumel Iron-constantan ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The transfer function of a pure dead time system with dead time τd is Eτds E-τds 1/(τds + 1) Τds + 1 Eτds E-τds 1/(τds + 1) Τds + 1 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The closed loop pole of a stable second order system could be One real positive and the other real negative Both real and negative Complex conjugate with positive real parts Both real and positive One real positive and the other real negative Both real and negative Complex conjugate with positive real parts Both real and positive ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Dome temperature of blast furnace stove is most accurately measured by a Iron-constantan thermocouple Platinum-platinum/rhodium ther-mocuple Platinum resistance thermometer Radiation pyrometer Iron-constantan thermocouple Platinum-platinum/rhodium ther-mocuple Platinum resistance thermometer Radiation pyrometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation High temperature of around 2000°C of incandescent gas mantles is measured by a/an Radiation pyrometer Specially designed thermocouple Optical pyrometer None of these Here Radiation pyrometer Specially designed thermocouple Optical pyrometer None of these Here ANSWER DOWNLOAD EXAMIANS APP
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