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Chemical Engineering Quiz | Practice MCQ #mcq.imBooz

December 16, 2019 by Dr. IM Leave a Comment

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Multiple Choice Questions on Chemical Engineering | Objective Questions | Chemical Engineering Quiz | MCQ

1 >>In low or standard frequency induction furnace, heat is produced by the ?

  • (A) combination of induced current and skin effect.
  • (B) induction and resistance.
  • (C) current flow through a heating element.
  • (D) none of these.

2 >>Which furnace employs natural draft ? ?

  • (A) Coke oven
  • (B) Boiler
  • (C) Rotary kilns
  • (D) L.D. converter

3 >>Test specimen for determination of refractoriness under load (RUL) of a refractory is heated in a ?

  • (A) furnace employing neutral atmosphere.
  • (B) carbon resistance furnace.
  • (C) reducing atmosphere.
  • (D) furnace employing negative pressure.

4 >>Regenerators compared to the recuperators for the same duty ?

  • (A) occupy more space
  • (B) are less costly
  • (C) are of smaller size
  • (D) all (a), (b) and (c)

5 >>Regenerators are used for waste heat recovery in ?

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  • (A) by-product coke ovens
  • (B) beehive coke oven
  • (C) blast furnace stoves
  • (D) soaking pits

6 >>Which of the following furnaces will have maximum thermal efficiency ? ?

  • (A) Soaking pits
  • (B) Walking beam reheating furnace
  • (C) Boiler furnace
  • (D) Rotary kilns

7 >>Heat transfer takes place through a liquid medium surrounding the submerged material under heating, in case of a/an ?

  • (A) blast furnace.
  • (B) steam boiler.
  • (C) salt bath furnace.
  • (D) annealing furnace.

chemical engineering Quiz | Chemical Engineering MCQ

8 >>In salt bath furnace, heat is transferred to the charge mainly by ?

  • (A) conduction
  • (B) convection
  • (C) radiation
  • (D) none of these

9 >>In order to maintain an oxidising atmosphere in a furnace, it should have ?

  • (A) more of excess air
  • (B) less of excess air
  • (C) more of CO in flue gas
  • (D) more of CO2 in flue gas

10 >>Combustion of fuel in a furnace with oxygen-enriched air results in higher ?

  • (A) flue gas volume
  • (B) flame temperature
  • (C) fuel consumption
  • (D) stack loss

11 >>Reducing atmosphere is maintained in a ?

  • (A) calcination kiln
  • (B) blast furnace
  • (C) soaking pit
  • (D) L.D. converter

12 >>Presence of SO2 in furnace gases attacks the ferrous metal by way of ?

  • (A) accelerating the rate of scaling.
  • (B) causing metal embrittlement.
  • (C) attacking the grain boundaries; particularly severe on low carbon and nickel bearing steels at high temperature.
  • (D) all (a), (b) and (c).

13 >>While the fuel-fired furnace can be used up to a maximum temperature of about 1700 Degree-C, the electric furnace can be used up to a temperature of about __________ DegreeC. ?

  • (A) 2000
  • (B) 3000
  • (C) 4500
  • (D) 6000

14 >>Advantages of the use of preheated combustion air are?

  • (A) saving in fuel consumption.
  • (B) reduction in scale losses.
  • (C) increase in flame temperature.
  • (D) all (a), (b) and (c).

15 >>Amount of coal lost in ash particle, which is carried through the boiler system, depends upon the ?

  • (A) physical nature, ash content and fineness of the coal.
  • (B) amount of excess air supplied and load on the boiler.
  • (C) type of burner and combustion chamber.
  • (D) all (a), (b) and (c)

16 >>In case of pulverised coal fired steam boiler, the secondary air serves the main purpose of ?

  • (A) transportation of coal.
  • (B) drying of coal.
  • (C) combustion of coal by supplying it around the burner.
  • (D) preheating the primary air.

chemical engineering Quiz | Chemical Engineering MCQ

17 >>The heating capacity of continuous reheating furnace depends upon the ?

  • (A) hearth area and furnace temperature.
  • (B) emissivity of the stock.
  • (C) ratio of wall surface to stock surface.
  • (D) all (a), (b) and (c).

18 >>Fuel economy in an industrial furnace operation can not be achieved by the use of ?

  • (A) stoichiometric combustion air.
  • (B) non-preheated combustion air.
  • (C) combustion air not enriched with oxygen.
  • (D) recupterators.

19 >>The function of an economiser in a boiler is to preheat the ?

  • (A) feedwater
  • (B) combustion air
  • (C) pulverised coal
  • (D) furnace oil

chemical engineering Quiz | Chemical Engineering MCQ

20 >>Which furnace employs an I.D. fan for the removal of flue gases from the furnace ? ?

  • (A) Coke oven.
  • (B) Blast furnace stoves.
  • (C) Beehive coke oven.
  • (D) High pressure boiler.

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Filed Under: Competitive Exam Quiz Tagged With: Basic Chemical Engineering objective question, chemical engineering Questions and answers, Chemical Engineering questions MCQs with answers, Chemical Engineering Quiz, Multiple Choice Questions on Chemical Engineering

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