Process Control and Instrumentation To increase the speed of response of a pressure spring liquid or gas expansion thermometer, the clearance space between the thermometer bulb and the thermal well should not be filled with A metal powder or graphite Mercury Oil Air A metal powder or graphite Mercury Oil Air ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Thermal wells used in temperature measurements should have Very thick walls Low emissivity Polished surface High transmissivity of radiation Very thick walls Low emissivity Polished surface High transmissivity of radiation ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following is not a speed measuring instrument? Psychrometer Tachometer Stroboscope All of these Psychrometer Tachometer Stroboscope All of these ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Response of a linear control system for a change in set point is called Regulator problem Transient response Frequency response Servo problem Regulator problem Transient response Frequency response Servo problem ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation An emf of the order of mV is generated when two solutions of different hydrogen ion concentration are separated by a thin glass wall. This is the working principle of a Polarograph Polarimeter PH meter Chromatograph Polarograph Polarimeter PH meter Chromatograph 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 D D³ D² D⁴ D D³ D² D⁴ ANSWER DOWNLOAD EXAMIANS APP
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