Process Control and Instrumentation Thermal wells used in temperature measurements should have Polished surface Low emissivity High transmissivity of radiation Very thick walls Polished surface Low emissivity High transmissivity of radiation Very thick walls ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The amplitude ratio for the sinusoidal response of __________ is < 1. Second order system Transportation lag None of these First order system Second order system Transportation lag None of these First order system 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 D³ D D⁴ D² D³ D D⁴ ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Helium gas constant volume thermometer is suitable for the measurement of a temperature of __________ °C. > 800 < 100 < 0 > 0 > 800 < 100 < 0 > 0 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Liquid column manometers are used for measuring the pressure __________ kgf/cm² . < 10 (gage) < 3 (gage) < atmospheric > 2(gage) < 10 (gage) < 3 (gage) < atmospheric > 2(gage) ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation For a feed back control system to be stable, the Roots of the characteristic equation should be real Poles of the closed loop transfer function should lie in the right half of the complex plane Bode plots of the corresponding open loop transfer function should monotoni-cally decrease Poles of the closed loop transfer function should lie in the left half of the complex plane Roots of the characteristic equation should be real Poles of the closed loop transfer function should lie in the right half of the complex plane Bode plots of the corresponding open loop transfer function should monotoni-cally decrease Poles of the closed loop transfer function should lie in the left half of the complex plane ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS