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MCQs

Total Questions : 1634 | Page 156 of 164 pages
Question 1551. Temperature control of an exothermic chemical reaction taking place in a CSTR is done with the help of cooling water flowing in a jacket around the reactor. The types of valve and controller action to be recommended are________________?
  1.    Air to open valve with the controller direct acting
  2.    Air to close valve with the controller indirect acting
  3.    Air to open valve with the controller indirect acting
  4.    Air to close valve with the controller direct acting
 Discuss Question
Answer: Option C. -> Air to open valve with the controller indirect acting
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1552. Bourdon tube is never made of________________?
  1.    Phosphor bronze
  2.    Monel metal
  3.    Stainless steel
  4.    Cast iron
 Discuss Question
Answer: Option D. -> Cast iron
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1553. Thermal well made of _____________ gives the fastest speed of response, while measuring temperature by thermocouples?
  1.    Steel
  2.    Vycor (a glass)
  3.    Nichrome
  4.    Inconel
 Discuss Question
Answer: Option B. -> Vycor (a glass)
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1554. In Bode plot, A.R. vs. w is plotted on a/an _____________ graph paper?
  1.    Log-lag
  2.    Triangular
  3.    Ordinary
  4.    Semi-log
 Discuss Question
Answer: Option A. -> Log-lag
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1555. Which of the following can measure temperatures in the range of – 20 to 300°C ?
  1.    Mercury in glass thermometer
  2.    Vapor pressure thermometer
  3.    Resistance thermometer
  4.    None of these
 Discuss Question
Answer: Option D. -> None of these
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1556. In Bode plot, φ vs. ω is plotted on a/an ______________ graph paper?
  1.    log-log
  2.    Ordinary
  3.    Semi-log
  4.    Triangular
 Discuss Question
Answer: Option A. -> log-log
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1557. The thermal emf-temperature relationship of most thermocouples is_________________?
  1.    Linear
  2.    Parabolic
  3.    Exponential
  4.    Square root
 Discuss Question
Answer: Option B. -> Parabolic
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1558. Which of the following thermocouples has the widest temperature measurement range ?
  1.    Iron-constantan
  2.    Chromel-alumel
  3.    Copper-constantan
  4.    Platinum-platinum/rhodium
 Discuss Question
Answer: Option D. -> Platinum-platinum/rhodium
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1559. _____________ is an example of distributed parameter system ?
  1.    Tubular reactor
  2.    CSTR
  3.    On-off controller
  4.    None of these
 Discuss Question
Answer: Option A. -> Tubular reactor
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1560. Cascade control means _______________?
  1.    Feed forward control
  2.    More than one feed-back loop
  3.    On-off control
  4.    One feed-back loop
 Discuss Question
Answer: Option B. -> More than one feed-back loop
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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