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MCQs: Suppose that the gain, time constant and dead time of a process with the following transfer function: Gc(s) = 10 exp( – 0.1s)/(0.5s + 1) are known with a possible error of ± 20% of their values. The largest permissible gain Kc of a proportional controller needs to be calculated below taking the values of process gain, time constant and dead time as________________?
Category: Chemical Engineering Mcqs, Published by: teswesm
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MCQs: Transfer function of transportation lag is___________________?
Category: Chemical Engineering Mcqs, Published by: teswesm
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MCQs: An amplitude ratio of 0.1 corresponds to _____________ decibels?
Category: Chemical Engineering Mcqs, Published by: teswesm
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MCQs: Emf developed by a thermocouple while measuring a temperature of 400°C is 22 mV. The type of thermocouple used is ___________________?
Category: Chemical Engineering Mcqs, Published by: teswesm
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MCQs: What is the dynamic error in a critically damped second order instrument for a ramp input (At) ?
Category: Chemical Engineering Mcqs, Published by: teswesm
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MCQs: Which of the systems having the following transfer function is stable ?
Category: Chemical Engineering Mcqs, Published by: teswesm
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MCQs: Which of the following fluid flow measuring devices can measure the largest flow rate ?
Category: Chemical Engineering Mcqs, Published by: teswesm
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MCQs: The operation of a Rotameter is based on ________________?
Category: Chemical Engineering Mcqs, Published by: teswesm
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MCQs: The unit step response of the transfer function 1/(s2 + 2s + 3) _______________________?
Category: Chemical Engineering Mcqs, Published by: teswesm
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MCQs: Bode stability method uses ____________ loop transfer function?
Category: Chemical Engineering Mcqs, Published by: teswesm
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MCQs: For an input forcing function, X(t) = 2t2, the Laplace transform of this function is________________?
Category: Chemical Engineering Mcqs, Published by: teswesm
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MCQs: The deflection of the free end of the bimetallic strips in a bimetallic thermometer with temperature is nearly__________________?
Category: Chemical Engineering Mcqs, Published by: teswesm
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MCQs: Thermal conductivity cell is the primary element of a/an _____________ analyser?
Category: Chemical Engineering Mcqs, Published by: teswesm
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MCQs: The temperature of tempering oil baths maintained at 400°C during heat treatment of steel is measured by a/an _____________ thermocouple?
Category: Chemical Engineering Mcqs, Published by: teswesm
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MCQs: Which of the following is not a mechanical pressure sensing element ?
Category: Chemical Engineering Mcqs, Published by: teswesm
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MCQs: Working principle of bimetallic thermometers is difference in linear co-efficient of thermal expansion of two strips of different metals welded together. Which of the following has the maximum thermal co-efficient of linear expansion ?
Category: Chemical Engineering Mcqs, Published by: teswesm
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MCQs: Emf developed by a thermocouple, while measuring a temperature of 600°C is about 5.5 mV. The type of thermocouple used is_______________?
Category: Chemical Engineering Mcqs, Published by: teswesm
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MCQs: Pressure of 0.0001 absolute psi can be measured by _____________ gauge?
Category: Chemical Engineering Mcqs, Published by: teswesm
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MCQs: Thermal wells used in temperature measurements should have __________________?
Category: Chemical Engineering Mcqs, Published by: teswesm
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MCQs: The unit step response of the transfer function (2s – 1)/[(3s + 1) (4s + 1)] reaches its final steady state asymptotically after _____________?
Category: Chemical Engineering Mcqs, Published by: teswesm
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