Lakshya Education MCQs

Question: Gusset stays in a boiler are provided to
Options:
A. Prevent the bulging of flat surfaces
B. Avoid explosion in furnace
C. Prevent leakage of hot flue gases
D. Support furnace freely from top
Answer: Option A

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Question 1. It is required to produce large amount of steam at low pressure. which boiler should be used?
  1.     Pulverized fuel fired boiler
  2.     Cochran boiler
  3.     Lancashire boiler
  4.     Babcock and Wilcox boiler
Answer: Option C
Question 2. The effect of friction in the nozzle __________ dryness fraction of steam.
  1.     Has no effect on
  2.     Decreases
  3.     Increases
  4.     None of these
Answer: Option C
Question 3. Equivalent evaporation of water is the evaporation for a feed water supply at 100°c
  1.     And its corresponding conversion into dry saturated steam at 100°C and 1.033 kg/cm²
  2.     And its corresponding conversion into dry steam at desired boiler pressure
  3.     Conversion into steam at atmospheric condition
  4.     Conversion into steam at the same pressure at which feed water is supplied
Answer: Option A
Question 4. Evaporative capacity of boiler is expressed as
  1.     kg of steam produced
  2.     Steam pressure produced
  3.     kg of fuel fired
  4.     kg of steam produced per kg of fuel fifed
Answer: Option D
Question 5. Gusset stays in a boiler are provided to
  1.     Prevent the bulging of flat surfaces
  2.     Avoid explosion in furnace
  3.     Prevent leakage of hot flue gases
  4.     Support furnace freely from top
Answer: Option A
Question 6. Equivalent evaporation of water is the evaporation for a feed water supply at 100°c
  1.     And its corresponding conversion into dry saturated steam at 100°C and 1.033 kg/cm²
  2.     And its corresponding conversion into dry steam at desired boiler pressure
  3.     Conversion into steam at atmospheric condition
  4.     Conversion into steam at the same pressure at which feed water is supplied
Answer: Option A

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