Process Control and Instrumentation A first order system with a time constant of 1 min is subjected to frequency response analysis. At an input frequency of 1 radian/min, the phase shift is -90° -45° 45° -180° -90° -45° 45° -180° ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation __________ are analysed using a polarograph. Liquids Isotonic solutions Gases Solids Liquids Isotonic solutions Gases Solids 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 5π/12 π/12 π/6 π/3 5π/12 π/12 π/6 π/3 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The Laplace transform of exp(at), where a > 0, is defined only for the Laplace parameter, s > a since The Laplace transform integral of exp(at) has initial values only for s > a The Laplace transform of integral of exp(at) has finite values only for s > a The function exp(at) is piece-wise continuous only for s > a The function is exponential The Laplace transform integral of exp(at) has initial values only for s > a The Laplace transform of integral of exp(at) has finite values only for s > a The function exp(at) is piece-wise continuous only for s > a The function is exponential ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Platinum resistance thermometer is the international standard for temperature measurement between Triple point of hydrogen and freezing point of antimony Both A and B Neither A nor B 13.81°K to 903.9°K Triple point of hydrogen and freezing point of antimony Both A and B Neither A nor B 13.81°K to 903.9°K ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation What is the Laplace transform of impulse input having magnitude 'X' ? 1 X 1/X X² 1 X 1/X X² ANSWER DOWNLOAD EXAMIANS APP
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