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.Management Sciences
Category: Process Control and Instrumentation
The experimental response of the controlled variable y(t) for a step change of magnitude ‘P’ in the manipulated variable x(t) is shown below: The appropriate transfer function of the process is_________________?
A. (Q/P) e-(Q/R)S/(TdS + 1)
B. (Q/R) e-TdS/(Q/P) (S + 1)
C. (Q/P) e-TdS/(Q/R) (S + 1)
D. (Q/R) e-(P/Q)S/(TdS + 1)
Which of the following is the dynamic characteristics of an instrument ?
A. Reproducibility
B. Sensitivity
C. Dead zone
D. Fidelity
Dilatometer is used to measure __________________?
A. Stress
B. Strain
C. Deflection
D. Contraction/expansion due to changes in temperature
Which of the systems having following transfer functions is stable ?
A. 1/(s2 + 2)
B. 1/(s2 – 2s + 3)
C. 1/(s2 + 2s + 2)
D. exp (-20s)/(s2 + 2s – 1)
Which of the following fluid flow measuring devices can measure the largest flow rate ?
A. V-notch
B. Rotameter
C. Orificemeter
D. Weir
Thermodynamic Celsius scale of temperature measurement is________________?
A. Defined on the basis of melting point of ice and evaporation temperature of water vapor
B. Defined on the basis of melting point of ice and condensation temperature of water vapor
C. Having an interval of 100° between ice point to steam point
D. Both B. and C.
Measurement of sub-zero Celsius temperature in industry is done most commonly by __________________?
A. Thermocouples
B. Resistance thermometers
C. Gas thermometers
D. Bi-metallic thermometers
Mass spectrometer is used for the composition analysis of____________________?
A. Alloys
B. Solids
C. Isotopes
D. None of these
In a single tank system, the transfer function of _____________ to inlet flow rate is 1/(TS+1)?
A. Outlet flow rate
B. Level
C. Both A. & B.
D. Neither A. nor B.
A non-linear chemical system is exemplified by a/an_________________?
A. Isothermal CSTR
B. Mixer
C. Non-isothermal CSTR
D. None of these
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