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

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

A. SiO₂.ZrO₂

B. CaO.ZrO₂

C. ZrO₂

D. None of these

A. 1780°C

B. 1900°C

C. 2050°C

D. 2800°C

A. splint

B. bright

C. sulp

D. boghead

A. Blast furnace

B. Sintering furnace

C. Coke oven

D. None of these

A. conduction

B. radiation

C. natural convection

D. forced convection

A. high volatile matter

B. low calorific value

C. non-smoking tendency

D. low ash content

A. 1780°C

B. 3050°C

C. 2050°C

D. 2600°C

A. clinkering tendency during combustion increases

B. calorific value increases sometimes

C. bulk density always decreases

D. none of these

A. 5

B. 25

C. 15

D. 35