- (A) Electric furnace walls
- (B) Steel melting furnace
- (C) Open hearth furnace
- (D) Burning zone of cement kilns
Exam preparation MCQs with answers
Practice Pakistan's most useful MCQs for competitive exams
Prepare for NTS, PPSC, FPSC and subject-wise tests with fresh multiple choice questions, clear options and quick answer reveal.
Latest MCQs
- (A) Poor resistance to the penetration of molten slag, metal & flue gases
- (B) Poor heat conductivity & low strength
- (C) Better thermal spalling resistance
- (D) All
- (A) Increases
- (B) Lowers
- (C) Does not affect
- (D) Either
- (A) 3Al2O3.2SiO2
- (B) Al2O3
- (C) ZrSO4
- (D) ThO2
- (A) Furnaces allowed to cool frequently
- (B) Flues
- (C) Chimney linings
- (D) All
- (A) Spalling resistance
- (B) Thermal conductivity
- (C) Fusion point
- (D) Slag penetration resistance
- (A) Corundum
- (B) Carborundum
- (C) Bauxite
- (D) Periclase
- (A) 5 to 10
- (B) 20 to 30
- (C) 45 to 60
- (D) 60 to 75
- (A) Green strength
- (B) Voids
- (C) Shrinkage
- (D) Both
- (A) Superduty fireclay
- (B) Silica
- (C) Chromite
- (D) None of these
