Process Control And Instrumentation MCQ Questions & Answers | Chemical Engineering

A. PH value

B. Degree of hydrolysis

C. Composition of complex ions

D. All of the above

A. Decibel = 20 log₁₀ (AR)

B. Decibel = 20 log_e (AR)

C. Decibel = 20 log₁₀ (AR)^0.5

D. Decibel = 20 log_e (AR)^0.5

A. Same as time constant

B. Same as transportation lag

C. Maximum change in the variable that does not change the reading of the instrument

D. None of these

A. U-tube manometer

B. Spring loaded diaphragm valve

C. CSTR with first order reaction

D. Thermocouple kept immersed in a liquid filled thermowell

A. Stress

B. Strain

C. Deflection

D. Contraction/expansion due to changes in temperature

A. Seebeck effect

B. Peltier effect

C. Joule heating effect

D. Thomson effect

A. Very limited flow ranges

B. Cryogenic flow measurements

C. Aerospace and in air borne applications

D. Both B and C

A. Mercury thermometer

B. Bimetallic thermometer

C. Radiation pyrometer

D. None of these

A. X

B. X²

C. $$\frac{{\text{1}}}{{\text{X}}}$$

D. 1

A. $$\frac{1}{{{{\text{s}}^2} + 1}}$$

B. $$\frac{{\text{s}}}{{{{\text{s}}^2} + 1}}$$

C. $$\frac{1}{{{{\text{s}}^2} - 1}}$$

D. $$\frac{{\text{s}}}{{{{\text{s}}^2} - 1}}$$