Q. Stability of a control system containing a transportation lag can be best analysed by

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Q. Stabilising time for the controllers is the time required for the response to reach __________ percent of its ultimate value.

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Q. Vapour actuated pressure spring thermometer does not require ambient temperature compensation. Ambient temperature compensation is provided in gas or liquid expansion pressure spring thermometer by

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Q. Which of the following is not a differential pressure flow meter ?

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Q. Working principle of mercury in glass thermometer is based on volumetric expansion of mercury with increase in temperature. Which of the following undergoes minimum volumetric expansion for a given temperature change ?

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Q. Bourdon gauges are used for measuring pressure (kg/cm² )

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Q. 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

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Q. A typical example of a physical system with under damped characteristic is a

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Q. An aneroid barometer measures the __________ pressure.

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Q. A bolometer is

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Q. Thermal wells are used in the temperature measurement to

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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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