Lakshya Education MCQs

Question: Coke oven gas after passing through return electrostatic tar precipitator (RETP) is used for the
A.Hot scarfing of steel slabs
B.Mixing with blast furnace gas
C.Coke oven battery heating
D.Steel ladle drying
Answer: Option C

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More Questions on This Topic :

Question 1. Bunsen burner is an example of a/an __________ burner.
  1.    Inside mixing/premix type
  2.    Outside mixing/diffusion flame/nozzle mix type
  3.    Rotary cup
  4.    Submerged combustion
Answer: Option A
Question 2. Stack (chimney) height in a big thermal power plant is dictated by the
  1.    Pollution control aspect
  2.    Draught to be created
  3.    Limitation of constructional facilities
  4.    None of these
Answer: Option B
Question 3. Undercharging of coal in the by-product coke ovens results in
  1.    Decrease in the c.v. of coke oven gas
  2.    Increase in its throughput
  3.    Increase in the c.v. of coke oven gas
  4.    No change in the c.v. of coke oven gas
Answer: Option A
Question 4. Pick out the wrong statement.:
  1.    Carburetted water gas is also called blue gas
  2.    Coals are divided in four species according to their carbon content in Seylor's classification
  3.    Carbonisation time in a by-product coke oven is about 16 hours
  4.    Gross and net calorific value of a fuel is the same, if it does not contain hydrogen or hydrocarbons
Answer: Option A
Question 5. Pick the odd man out.
  1.    Briquettes
  2.    Wood
  3.    Oil gas
  4.    Pitch creosote mixture
Answer: Option B
Question 6. Calorific value of pitch creosote mixture (PCM) i.e., C.T.F.-200 is about
  1.    8800 kcal/m³
  2.    8800 kcal/kg
  3.    Same as that of coal middling
  4.    25000 kcal/kg
Answer: Option B

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