Q. The offset introduced by proportional controller with gain Kc in response of first order system can be reduced by

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Q. When a bare thermocouple is covered by a protective sheath, the response becomes

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Q. What is the normal percentage of rhodium in platinum + rhodium element used in the thermocouple ?

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Q. Helium gas constant volume thermometer is suitable for the measurement of a temperature of __________ °C.

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Q. Mass spectrometer is used for the composition analysis of

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Q. A first order system with a time constant of 1 min is subjected to frequency response analysis. At an input frequency of 1 radian/min, the phase shift is

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Q. __________ stability method uses open loop transfer function.

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Q. A pyranometer is an instrument used for measuring the

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Q. All the thermocouples used for temperature measurement use dissimilar metal

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Q. The inverse Laplace transform of the function f(s) = 1 / S(1+S) is

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Q. Thermal conductivity based continuous flue gas analyser makes use of varying thermal conductivity of the constituents of flue gases. Which of the following constituents of flue gases has the maximum thermal conductivity ?

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Q. Emf generated in a thermocouple depends on the temperature

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Q. Working principle of mercury in glass thermometer is based on the __________ of mercury with increase in temperature.

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Q. A system with a double pole at the origin is unstable since the corresponding term in the time domain

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Q. 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

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Q. In a second order under damped system, the

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Q. In an exothermic chemical reactor, the manipulated variable is the flow rate of

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Q. Very low pressure is expressed in microns(μ), which is equal to __________ mm of Hg coloumn (absolute) at 0°C.

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Q. Which of the following is not a second order instrument ?

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Q. Small furnace draught is accurately measured by an inclined tube manometer, in which the manometric liquid used most commonly is

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