Process Control and Instrumentation Conversion formula for converting amplitude ratio (AR) into decibels is Decibel = 20 loge (AR)0.5 Decibel = 20 log10 (AR)0.5 Decibel = 20 log10 (AR) Decibel = 20 loge (AR) Decibel = 20 loge (AR)0.5 Decibel = 20 log10 (AR)0.5 Decibel = 20 log10 (AR) Decibel = 20 loge (AR) ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following is not a variable area flow meter? Piston type meter Rotameter Orifice and tapered plug meter Magnetic flow meter Piston type meter Rotameter Orifice and tapered plug meter Magnetic flow meter ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Emf developed by a thermocouple, while measuring a temperature of 600°C is about 5.5 mV. The type of thermocouple used is Either A, B or C Iron-constantan Platinum-platinum+rhodium Chromel-alumel Either A, B or C Iron-constantan Platinum-platinum+rhodium Chromel-alumel ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The root locus plot of the roots of the characteristics equation of a closed loop system having the open loop transfer function K(s + 1)/2(2s + 1)(3s + 1) will have a definite number of loci for variation of K from 0 to ∞. The number of loci is 3 2 1 4 3 2 1 4 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Mercury manometer (U-tube type) exemplifies a __________ order system. Second Zero First Third Second Zero First Third ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the systems having following transfer functions is stable? 1/(s²-2s + 3) 1/(s²+ 2) Exp(-20s)/(s² + 2s-l) 1/(s² + 2s + 2) 1/(s²-2s + 3) 1/(s²+ 2) Exp(-20s)/(s² + 2s-l) 1/(s² + 2s + 2) ANSWER DOWNLOAD EXAMIANS APP
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