Process Control and Instrumentation Which thermocouple can be used to measure a temperature of around 1400°C ? None of these Copper-constantan Aluminium-chromel Platinum-platinum+rhodium None of these Copper-constantan Aluminium-chromel Platinum-platinum+rhodium ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation With increase in temperature, the electrical conductivity of the platinum used in the resistance thermometer Increases exponentially Decreases Remains constant Increases Increases exponentially Decreases Remains constant Increases ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Working principle of bimetallic thermometers is difference in linear co-efficient of thermal expansion of two strips of different metals welded together. Which of the following has the maximum thermal co-efficient of linear expansion? Nickel Invar Chromel Brass Nickel Invar Chromel Brass ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Process degree of freedom indicates __________ number of controllers to be used. The maximum Nothing about the Both maximum and the minimum The minimum The maximum Nothing about the Both maximum and the minimum The minimum ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Find the ultimate gain and frequency for a proportional controller in the case of a process having the transfer function Gp(s) = 1/(4s + 1)(2s + 1)(s + 1). W = 1, Kc = 13 W = √(7/6), Kc = 46/3 W = √(7/8), Kc = 45/4 W = 1/√14, Kc = 45/7√14 W = 1, Kc = 13 W = √(7/6), Kc = 46/3 W = √(7/8), Kc = 45/4 W = 1/√14, Kc = 45/7√14 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The amplitude ratio for the sinusoidal response of a __________ is 1. None of these Transportation lag Second order system First order system None of these Transportation lag Second order system First order system ANSWER DOWNLOAD EXAMIANS APP
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