Process Control & Instrumentation Mcqs for Chemical


Q.  Mercury manometer (U-tube type) exemplifies a ______________ order system?

a. Zero
b. First
c. Second
d. Third


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  Emf developed by a thermocouple, while measuring a temperature of 600°C is about 5.5 mV. The type of thermocouple used is_______________?
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MCQs:  Pressure of 0.0001 absolute psi can be measured by _____________ gauge?
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MCQs:  Thermal wells used in temperature measurements should have __________________?
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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 _____________?
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MCQs:  A proportional controller with a gain of Kc is used to control a first order process. The offset will increase, if________________?
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MCQs:  On-off controllers are normally used for________________?
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MCQs:  A pyrheliometer is an instrument used for measuring the_________________?
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MCQs:  Which of the following temperature measuring instruments need not touch the object whose temperature is being measured ?
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MCQs:  In a shell and tube heat exchanger, the inlet temperature of heating/cooling fluid is the ____________ variable?
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MCQs:  The ____________ of a vapor pressure thermometer is a secondary element ?
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MCQs:  Thermistors are used in ____________ devices?
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MCQs:  Thermistor, which has high temperature co-efficient of resistivity, is used as the sensing element in resistance thermometer. It is a/an ?
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MCQs:  The ____________ of the fluid contained in the temperature sensing element (i.e., bulb) of filled system thermometers changes with change in temperature ?
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MCQs:  For a feed back control system to be stable, the _________________?
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MCQs:  Which of the following thermocouples will give the highest output for the same value of hot and cold junction temperature ?
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MCQs:  Use of I-control along with P-control facilitates ?
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MCQs:  Polarograph is meant for the analysis of __________________?
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MCQs:  Response of a system to a sinusoidal input is called _____________ response?
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MCQs:  The characteristic equation for the control system with a closed loop transfer function G1/1 + G2 is given by 1 + G2 = 0. The characteristic equation for the control system_________________?
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MCQs:  A mercury barometer measures the _____________ pressure?
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