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MCQs

Total Questions : 100 | Page 4 of 10 pages
Question 31. Which of the following is true about the two charged vanes that produce electric field in Paramagnetic oxygen analyzer?
  1.    Both the vanes should be at higher potential than the test body
  2.    Both the vanes should have the same potential as the test body
  3.    One vane should be at higher potential than the test body and the other vane should be at lower potential
  4.    Both the vanes should be at lower potential than the test body
 Discuss Question
Answer: Option C. -> One vane should be at higher potential than the test body and the other vane should be at lower potential
Answer: (c).One vane should be at higher potential than the test body and the other vane should be at lower potential
Question 32. In the Beckman instrument, the flow rate recommended when the sample enters through a porous diffusion disc is which of the following?
  1.    100-200 cc/min
  2.    50-250 cc/min
  3.    40-60 cc/min
  4.    200-300 cc/min
 Discuss Question
Answer: Option B. -> 50-250 cc/min
Answer: (b).50-250 cc/min
Question 33. In Paramagnetic oxygen analyzer, when no oxygen is present the magnetic force balances torque of the fibre.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 34. To improve paramagnetic oxygen analyzer, the quartz suspension must be replaced with which of the following?
  1.    Platinum-iridium
  2.    Phosphor-bronze
  3.    Gold-palladium
  4.    Antimony
 Discuss Question
Answer: Option A. -> Platinum-iridium
Answer: (a).Platinum-iridium
Question 35. In the Beckman instrument, the flow rate recommended when the sample enters directly for rapid response is which of the following?
  1.    100-200 cc/min
  2.    50-250 cc/min
  3.    40-60 cc/min
  4.    200-300 cc/min
 Discuss Question
Answer: Option C. -> 40-60 cc/min
Answer: (c).40-60 cc/min
Question 36. The voltage required for striking the discharge in the presence of nitrogen is 1500V.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 37. The light output from the discharge tube is interrupted by means of a rotating slotted disc.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 38. The block diagram of series mode analyser of NO and NO₂ is given below. Identify the unmarked procedure.The Block Diagram Of Series Mode Analyser Of NO And NO₂ Is...
  1.    Oxidiser
  2.    Reducer
  3.    Filter
  4.    NO Analyser
 Discuss Question
Answer: Option A. -> Oxidiser
Answer: (a).Oxidiser
Question 39. The block diagram for parallel mode analyser of NO and NO₂ is given below. Identify the unmarked block in the diagram.The Block Diagram For Parallel Mode Analyser Of NO And NO₂...
  1.    NO Analyser
  2.    NO₂ to NO reduction
  3.    NO₂ remover
  4.    Difference
 Discuss Question
Answer: Option D. -> Difference
Answer: (d).Difference
Question 40. The diagram of Electrochemical cell used for the detection of hydrogen sulphide is given below. Identify the unmarked component.The Diagram Of Electrochemical Cell Used For The Detection O...
  1.    Filter
  2.    Gas permeable membrane
  3.    Elastic layer
  4.    Electrolyte
 Discuss Question
Answer: Option B. -> Gas permeable membrane
Answer: (b).Gas permeable membrane

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