Process Control & Instrumentation Mcqs for Chemical


Q.  Which of the following thermocouple materials does not contain nickel ?

a. Alumel
b. Chromel
c. Constantan
d. None of these


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  The offset introduced by proportional controller with gain Kc in response of first order system can be reduced by ____________________?
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MCQs:  Which of the following is not a variable area flow meter ?
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MCQs:  Configuration of Bourdon spring tube is never made of _____________ shape?
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MCQs:  Nichol’s chart deals with __________________?
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MCQs:  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_______________?
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MCQs:  In a shell and tube heat exchanger, the flow rate of heating/cooling fluid is the ______________ variable?
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MCQs:  Reset rate is the another term used for ____________ time?
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MCQs:  Positioning controllers are used for _______________?
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MCQs:  Operating range of a temperature measuring instrument is 800 to 1600°C. It could be a/an _____________ pyrometer?
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MCQs:  A bimetallic thermometer as compared to industrial mercury in glass thermometer has almost the same_________________?
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MCQs:  The maximum service temperature for fibre glass used as thermocouple wire insulation material is __________ °C?
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MCQs:  Time constant is the __________________?
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MCQs:  Continuous shell temperature measurement in a liquid-liquid heat exchanger is done by a __________________?
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MCQs:  What is the ratio of output amplitude to input amplitude for a sinusoidal forcing function in a first order system ?
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MCQs:  Flow rate through an orifice is _____________ the pressure differential?
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MCQs:  Which of the following is not the triple point of water ?
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MCQs:  Measurement of sub-zero Celsius temperature in industry is done most commonly by __________________?
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MCQs:  Characteristic equation is the denominator of ____________ loop transfer function?
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MCQs:  Smoke density of the flue gas going out of the chimney is measured by a __________________?
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MCQs:  The experimental response of the controlled variable y(t) for a step change of magnitude ‘P’ in the manipulated variable x(t) is shown below: The appropriate transfer function of the process is_________________?
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