Online Analysis of Other Chemical Factors MCQ

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• The two-position controller is a type of automatic controller.
  ক

  True

  খ

  False
• Which of the following control will lead to a reduction in deviation?
  ক

  Cascade control

  খ

  Adaptive control

  গ

  Proportional plus derivative control

  ঘ

  Proportional plus integral control
• Which of the following is used when dynamics do not change with time?
  ক

  Sequential control

  খ

  Cascade control

  গ

  Cumulative control

  ঘ

  Adaptive control
• Which of the following is used in the measurement of water temperature and flow rate?
  ক

  Cascade control

  খ

  Sequential control

  গ

  Feed-forward control

  ঘ

  Concerted control
• Which of the following control is used to control water temperature in the heat exchanger process?
  ক

  Feed-forward control

  খ

  Cascade control

  গ

  Sequential control

  ঘ

  Cumulative control
• Which of the following combination of control is not used in practice?
  ক

  Proportional plus integral

  খ

  Proportional plus integral minus derivative

  গ

  Proportional plus derivative

  ঘ

  Proportional plus integral plus derivative
• The change in the output of the controller is proportional to the input signal produced by the environmental change.
  ক

  True

  খ

  False
• The manual control consists of ___________ to regulate the temperature.
  ক

  Safety valve

  খ

  Needle valve

  গ

  Butterfly valve

  ঘ

  Steam valve
• Which of the following is not a type of Automatic control system?
  ক

  Integral controls

  খ

  Derivative controls

  গ

  Proportional controls

  ঘ

  Displacement control
• Which of the following is not a component of the control loop?
  ক

  Initial control element

  খ

  A measuring element

  গ

  Final control element

  ঘ

  Controller
• The minimum response time of mass spectroscopy is __________
  ক

  15 secs

  খ

  10 secs

  গ

  5 secs

  ঘ

  2 secs
• Who developed the technique to measure glucose in a lactic acid fermentation?
  ক

  Brookes

  খ

  Vaccari

  গ

  Rolf

  ঘ

  Lim
• Who developed the sterilized penicillinase electrodes?
  ক

  Higgins

  খ

  Hewetson

  গ

  Boldot

  ঘ

  Enfors
• The minimum response time of Ion-selective electrodes is ________
  ক

  10 secs

  খ

  15 secs

  গ

  5 secs

  ঘ

  20 secs
• Which of the following organization developed Ion-specific sensors?
  ক

  Orion Research

  খ

  AISI

  গ

  TATA

  ঘ

  SAIL