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MCQs

Total Questions : 100 | Page 1 of 10 pages
Question 1. What is the specific ratio for a blower?
  1.    <1.1
  2.    1.11-1.2
  3.    >1.2
  4.    1.11
 Discuss Question
Answer: Option B. -> 1.11-1.2
Answer: (b).1.11-1.2
Question 2. Which blower is used when the system is prone to clogging?
  1.    Centrifugal blower
  2.    Positive displacement blower
  3.    Regenerative blower
  4.    Helical screw blower
 Discuss Question
Answer: Option B. -> Positive displacement blower
Answer: (b).Positive displacement blower
Question 3. Dimensionless pressure rise is not dependent on which of the following?
  1.    Density of the fluid
  2.    Speed of the blower
  3.    Diameter of the blower
  4.    Power of the blower
 Discuss Question
Answer: Option D. -> Power of the blower
Answer: (d).Power of the blower
Question 4. Normally what is the pressure under which centrifugal blowers operate?
  1.    0.35-0.7 kg/cm²
  2.    0.5 -0.7 kg/cm²
  3.    0.35 kg/cm²
  4.    0.35-0.5kg/cm²
 Discuss Question
Answer: Option A. -> 0.35-0.7 kg/cm²
Answer: (a).0.35-0.7 kg/cm²
Question 5. Centrifugal pumps have a greater speed of rotation when compared to that of positive displacement blower.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 6. What is the maximum discharge pressure of a twin lobe blower?
  1.    0.5 kg/cm²
  2.    1 kg/cm²
  3.    1.5 kg/cm²
  4.    0.75 kg/cm²
 Discuss Question
Answer: Option B. -> 1 kg/cm²
Answer: (b).1 kg/cm²
Question 7. How is the static pressure drop in the water column related to the air flow rate?
  1.    Linearly
  2.    Inversely
  3.    There is no relation between them
  4.    A parabolic curve is obtained
 Discuss Question
Answer: Option A. -> Linearly
Answer: (a).Linearly
Question 8. Which of these is not a characteristic of variable speed drive?
  1.    Improved speed control of the blower
  2.    Speed adjustments over a continuous range
  3.    High cost
  4.    Can be retrofitted into an existing motor
 Discuss Question
Answer: Option D. -> Can be retrofitted into an existing motor
Answer: (d).Can be retrofitted into an existing motor
Question 9. The surface water quality is affected by _______ and infiltration from rainfall.
  1.    Precipitation
  2.    Run off
  3.    Wetlands
  4.    Farming
 Discuss Question
Answer: Option B. -> Run off
Answer: (b).Run off
Question 10. Function of the intended uses of water can achieve the desired water quality.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True

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