Process Control and Instrumentation An amplitude ratio of 0.1 corresponds to __________ decibels. 10 -10 20 -20 10 -10 20 -20 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Relationship between absorption/evolution of heat at the thermocouple junctions and the current flow in the circuit is given by __________ effect. Peltier Seebeck None of these Thomson Peltier Seebeck None of these Thomson ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following is a 'contact' pyrometer? Infra red pyrometer Resistance pyrometer Optical pyrometer Radiation pyrometer Infra red pyrometer Resistance pyrometer Optical pyrometer Radiation pyrometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Working principle of mercury in glass thermometer is based on the __________ of mercury with increase in temperature. Volumetric expansion Differential linear expansion Increase of pressure Increase of thermal conductivity Volumetric expansion Differential linear expansion Increase of pressure Increase of thermal conductivity 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
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 Polarimeter PH meter Polarograph Chromatograph Polarimeter PH meter Polarograph Chromatograph ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS