Fuels, Furnace and Refractories Technology MCQ Questions and Answers

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Enhance your knowledge of Fuels, Furnace and Refractories Technology with this comprehensive collection of MCQ questions and answers. These MCQ questions and answers in Fuels, Furnace and Refractories Technology are specifically designed for students of Metallurgical Engineering who are preparing for the GATE Exam. Strengthen your preparation and excel in your studies with this valuable resource. Page-2 section-1

Presence of free moisture in coal during its high temperature carbonisation

A) protects the volatile products from pyrolysis (cracking) in the presence of hot coke and hot oven walls B) reduces the coking time C) increases the loss of fine coal dust from the ovens when charging D) none of these

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

What is chemical formula of zirconia

A) SiO₂.ZrO₂ B) CaO.ZrO₂ C) ZrO₂ D) None of these

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

The fusion temperature of Silica is

A) 1780°C B) 1900°C C) 2050°C D) 2800°C

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

A coal containing very high percentage of durain is called . . . . . . . . coal

A) splint B) bright C) sulp D) boghead

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Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

The example of furnace which employ induced draught

A) Blast furnace B) Sintering furnace C) Coke oven D) None of these

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Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

In a furnace, with heating element temperature at 1700° C, the dominant mechnaism of heat, transfer will be

A) conduction B) radiation C) natural convection D) forced convection

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Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

'Fat' coal means a coal having

A) high volatile matter B) low calorific value C) non-smoking tendency D) low ash content

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

The fusion temperature of Zirconia brick is

A) 1780°C B) 3050°C C) 2050°C D) 2600°C

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

With increase in moisture content of coal, its

A) clinkering tendency during combustion increases B) calorific value increases sometimes C) bulk density always decreases D) none of these

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Percentage of methane in coke oven gas may be around

A) 5 B) 25 C) 15 D) 35

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

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Fuels, Furnace and Refractories Technology MCQ Questions and Answers | Metallurgical Engineering