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 -45° 45° -90° -180° -45° 45° -90° -180° ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following instruments is not used for measuring sub-zero (<0°) temperatures? Mercury in glass thermometer Platinum resistance thermometer Vapor pressure thermometer Radiation pyrometer Mercury in glass thermometer Platinum resistance thermometer Vapor pressure thermometer Radiation pyrometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation For increased speed of response of an expansion pressure spring thermometer, the thermometer bulb should have a All of these Large area but small mass Small specific heat High thermal conductivity All of these Large area but small mass Small specific heat High thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation For an input forcing function, X(t) = 2t², the Laplace transform of this function is 4/s² 4/s³ 2/s³ 2/s² 4/s² 4/s³ 2/s³ 2/s² ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The function of a transducer is to Codify/decodify the input signal Modify the input signal Convert the primary signal into a more useful quantity, usually an electric impulse Amplify the input signal Codify/decodify the input signal Modify the input signal Convert the primary signal into a more useful quantity, usually an electric impulse Amplify the input signal ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The frequency response of a first order system, has a phase shift with lower and upper bounds given by 0, π/2 -π/2, π/2 - ∞, π/2 -π/2, 0 0, π/2 -π/2, π/2 - ∞, π/2 -π/2, 0 ANSWER DOWNLOAD EXAMIANS APP
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