Process Control and Instrumentation Which of the following relates the absorption & evolution of heat at the junctions of a thermocouple to the current flow in the circuit? Peltier effect Thomson effect Seebeck effect Joule heating effect Peltier effect Thomson effect Seebeck effect Joule heating effect ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The amplitude ratio for the sinusoidal response of a __________ is 1. Second order system None of these Transportation lag First order system Second order system None of these Transportation lag First order system ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation In a feed-back control system G and H denote open loop and close loop transfer functions respectively. The output-input relationship is G/(1 + H) G/H H(1 + G) H/G G/(1 + H) G/H H(1 + G) H/G ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The time constant of a unity gain, first order plus time delay process is 5 min. If the phase lag at a frequency of 0.2 rad/min is 60°, then the dead time (in minutes) is π/3 π/6 5π/12 π/12 π/3 π/6 5π/12 π/12 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation What is the ratio of output amplitude to input amplitude for a sinusoidal forcing function in a first order system? >1 1 None of these < 1 >1 1 None of these < 1 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which is the most suitable instrument for measuring pressure below 3 microns? Bourdon guage Alphatron Ionisation gauge Mcleoid gauge Bourdon guage Alphatron Ionisation gauge Mcleoid gauge ANSWER DOWNLOAD EXAMIANS APP
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