Discussion
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- Question
The maximum service temperature for fibre glass used as thermocouple wire insulation material is __________ °C.
Options- A. 250
- B. 500
- C. 750
- D. 1000
- Correct Answer
- 500
- 1. Compositional analysis of __________ is done using mass spectrometer.
Options- A. an isotope
- B. natural gas
- C. a solid
- D. an alloy Discuss
- 2. Nichol's chart deals with
Options- A. A.R. vs. phase lag of first order.
- B. A.R. vs. phase lag of second order.
- C. closed loop values vs. open loop values.
- D. frequency response values of controllers. Discuss
- 3. Volumetric expansion is the working principle of the __________ thermometers.
Options- A. mercury in glass
- B. constant volume gas
- C. vapor pressure
- D. bimetallic Discuss
- 4. In a single tank system, the transfer function of level to inlet flow rate is
Options- A. R/TS
- B. R/(TS + 1)
- C. l(TS + l)
- D. 1/TS Discuss
- 5. A magnetic flowmeter is
Options- A. based on the principle of Faraday's law.
- B. capable of measuring the flow rate of slurries and electrolytes.
- C. based on the linear relationship between the fluid flow rate and the induced voltage.
- D. all (a), (b) and (c). Discuss
- 6. The operation of a rotameter is based on
Options- A. variable flow area.
- B. rotation of a turbine.
- C. pressure drop across a nozzle.
- D. pressure at a stagnation point. Discuss
- 7. Which of the following will give maximum gas conversion?
Options- A. Fixed bed reactor.
- B. Fluidised bed reactor.
- C. Semi-fluidised bed reactor.
- D. Plug-flow catalytic reactor. Discuss
- 8. A first order reaction requires two equal sized CSTR. The conversion is
Options- A. less when they are connected in series.
- B. more when they are connected in series.
- C. more when they are connected in parallel.
- D. same whether they are connected in series or in parallel. Discuss
- 9. The reaction between oxygen and organic material is a/an __________ reaction.
Options- A. exothermic
- B. endothermic
- C. biochemical
- D. photochemical Discuss
- 10. 6 gm of carbon is burnt with an amount of air containing 18 gm oxygen. The product contains 16.5 gms CO2 and 2.8 gms CO besides other constituents. What is the degree of conversion on the basis of disappearance of limiting reactant?
Options- A. 100%
- B. 95%
- C. 75%
- D. 20% Discuss
Process Control and Instrumentation problems
Search Results
Correct Answer: an isotope
Correct Answer: closed loop values vs. open loop values.
Correct Answer: mercury in glass
Correct Answer: R/(TS + 1)
Correct Answer: all (a), (b) and (c).
Correct Answer: variable flow area.
Correct Answer: Semi-fluidised bed reactor.
Correct Answer: more when they are connected in series.
Correct Answer: exothermic
Correct Answer: 95%
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