Process Control and Instrumentation Thermistors are made of Ultra pure metals Nickel-chromium alloys Metal oxides Iron-copper alloys Ultra pure metals Nickel-chromium alloys Metal oxides Iron-copper alloys ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The closed loop pole of a stable second order system could be 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 One real positive and the other real negative Both real and negative ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The transfer function for a P-D controller is Kc(1+τD s) Kc/τD s Kc τD s Kc(1 +1/τD s) Kc(1+τD s) Kc/τD s Kc τD s Kc(1 +1/τD s) 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/6 π/12 5π/12 π/3 π/6 π/12 5π/12 π/3 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Starting temperature of optical radiation pyrometer is __________ °C. 800 1200 1500 400 800 1200 1500 400 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following filled system expansion thermometers has the lowest positive temperature measurement capability? Alcohol in glass thermometer Fused metal (Na or K) in steel thermometer Mercury in glass thermometer Nitrogen in steel thermometer Alcohol in glass thermometer Fused metal (Na or K) in steel thermometer Mercury in glass thermometer Nitrogen in steel thermometer ANSWER DOWNLOAD EXAMIANS APP
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