Process Control and Instrumentation A sinusoidal variation in the input passing through a linear first order system Becomes more oscillatory (frequency increases) Becomes less oscillatory (frequency decreases) Gets amplified (magnitude increases) Gets attenuated (magnitude decreases) Becomes more oscillatory (frequency increases) Becomes less oscillatory (frequency decreases) Gets amplified (magnitude increases) Gets attenuated (magnitude decreases) ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The amplitude ratio for the sinusoidal response of a __________ is 1. Transportation lag First order system Second order system None of these Transportation lag First order system Second order system None of these ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The temperature of tempering oil baths maintained at 400°C during heat treatment of steel is measured by a/an __________ thermocouple. Platinum-platinum/rhodium Iron-constantan Chromel-alumel None of these Platinum-platinum/rhodium Iron-constantan Chromel-alumel None of these ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The deflection in diaphragm (which is used as pressure sensor in pneumatic and electronic instruments) is dependent on the metal thickness, its diameter (d) and shape & number of corrugations. Its deflection is proportional to D² D D³ D⁴ D² D D³ D⁴ ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The amplitude ratio for the sinusoidal response of __________ is < 1. Transportation lag None of these Second order system First order system Transportation lag None of these Second order system First order system ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation A bimetallic thermometer as compared to industrial mercury in glass thermometer has almost the same All of these Accuracy (± 1% of span) Temperature measuring range (- 40°C to 450°C) Speed of response All of these Accuracy (± 1% of span) Temperature measuring range (- 40°C to 450°C) Speed of response ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS