Process Control & Instrumentation Mcqs for Chemical


Q.  Relationship between absorption/evolution of heat at the thermocouple junctions and the current flow in the circuit is given by _____________ effect?

a. Peltier
b. Thomson
c. Seebeck
d. None of these


ANSWER: See Answer
 
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MCQs:  A system with transfer function [(2S/4S) + 1] is of _____________ order?
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MCQs:  Flow rate measurement of hostile acids and alkalis can be most suitably done by a/an ________________?
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MCQs:  Platinum resistance thermometer is the international standard for temperature measurement between __________________?
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MCQs:  Which of the following thermocouple materials does not contain nickel ?
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MCQs:  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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MCQs:  Specific gravity of a liquid cannot be measured by a/an __________________?
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MCQs:  Mass spectrometer is used for the composition analysis of____________________?
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MCQs:  The ______________ of a vapor pressure thermometer is a primary element?
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MCQs:  Helium gas constant volume thermometer is suitable for the measurement of a temperature of ______________ °C?
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MCQs:  Flow rate of a river is measured by a/an____________________?
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MCQs:  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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MCQs:  Which of the following thermometers is not suitable for distant reading upto 60 metres ?
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MCQs:  The transfer function of a second order system is _____________________?
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MCQs:  Range of hydrogen gas constant volume thermometer is _____________ °C?
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MCQs:  In an exothermic chemical reactor, the manipulated variable is the flow rate of_______________?
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MCQs:  Which of the following thermocouples is the most suitable for measuring a temperature of about 1600°C in an oxidizing atmosphere ?
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MCQs:  Temperature measurement by optical pyrometer is done above ____________ point, which is 1063°C ?
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MCQs:  Degree to which an instrument indicates the changes in measured variable without dynamic error is called its ___________________?
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MCQs:  Resistance of a gas in a vessel is given by (where, P = pressure, V = volume of the vessel, n = no. of moles of the gas, R = gas constant) ?
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MCQs:  Which of the following is not a differential pressure flow meter ?
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