Process Control and Instrumentation A constant volume gas thermometer employing __________ is used to measure sub-zero (i.e., < 0° C) temperature. Hydrogen Helium Nitrogen None of these Hydrogen Helium Nitrogen None of these ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Optical activity of a solution can be determined using a Dilatometer Polarimeter Polarograph Refractrometer Dilatometer Polarimeter Polarograph Refractrometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Zirconia probe is used for the measurement of % O₂ in flue gas % CO₂ in flue gas Speed of a submarine Humidity of air % O₂ in flue gas % CO₂ in flue gas Speed of a submarine Humidity of air ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Mercury thermometer is commonly used for low temperature measruement. The freezing point and boiling point of mercury are respectively __________ °C. - 79 and 395 - 10 and 425 - 51 and 439 - 39 and 350 - 79 and 395 - 10 and 425 - 51 and 439 - 39 and 350 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 D⁴ D³ D² D D⁴ D³ ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Operating range of a temperature measuring instrument is 800 to 1600°C. It could be a/an __________ pyrometer. Photoelectric Radiation Optical None of these Photoelectric Radiation Optical None of these ANSWER DOWNLOAD EXAMIANS APP
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