Process Control & Instrumentation Mcqs for Chemical


Q.  Thermistors are made of__________________?

a. Ultra pure metals
b. Metal oxides
c. Iron-copper alloys
d. Nickel-chromium alloys


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  A system with a double pole at the origin is unstable since the corresponding term in the time domain________________?
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MCQs:  Working principle of disappearing filament type optical pyrometer is based on the ________________?
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MCQs:  Dilatometer is used to measure __________________?
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MCQs:  Relationship between absorption/evolution of heat at the thermocouple junctions and the current flow in the circuit is given by _____________ effect?
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MCQs:  pH meter has ____________________?
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MCQs:  Flow rate of those fluids which are insensitive to changes in their density, viscosity or flow velocity profile can be best measured by a ________________?
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MCQs:  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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MCQs:  Which of the following filled system expansion thermometer has the capability to measure the lowest temperature ?
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MCQs:  Emf generated in a thermocouple depends on the temperature ___________________?
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MCQs:  Which of the following thermocouples can measure the maximum temperature ?
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MCQs:  Optical activity of a solution can be determined using a ___________________?
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MCQs:  Strain gage uses an electrical conductor wire, which when elastically stretched increases in length and reduces in diameter. Both these dimensional changes result in ____________ in the electrical resistance of the wire ?
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MCQs:  Which of the following is not a composition measuring instrument ?
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MCQs:  Response of a linear control system for a change in set point is called __________________?
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MCQs:  Stroboscope is used for the measurement of _________________?
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MCQs:  Nickel percentage in invar which is an iron-nickel alloy, and is used as a thermocouple material is __________________?
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MCQs:  Conversion formula for converting amplitude ratio (AR) into decibels is ________________?
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MCQs:  Liquid flow rate in an open channel cannot be measured by a/an __________________?
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MCQs:  Temperature of molten pig iron (1450°C) and molten slag (1500°C) flowing out of a blast furnace is measured by a/an_______________?
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MCQs:  Which of the following is never used as an element of industrial resistance thermometer ?
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