134. Which of the following does not figure in the list of seven substances selected for international temperature scale?
135. Zirconia probe is used for the continuous measurment of __________ flue gases going out of the furnace.
138. Which of the following filled system expansion thermometers has the lowest positive temperature measurement capability?
139. A photo electric device in which the resistance of the metal is directly proportional to the light striking on it, is known as photo-conductive cell. Photoelectric transducers are used for the measurement of those parameters, which can be used to produce variation in
140. A proportional controller with a gain of Kc is used to control a first order process. The offset will increase, if
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