Cement MCQs 20 min Score: 0 Attempted: 0/20 Subscribe 1. Joseph Aspdin prepared cement in (A) 1834 (B) 1824 (C) 1814 (D) 1854Show All Answers 2. Chemically, cement is a mixture of silicates and aluminates of (A) Ca (B) Mg (C) Mn (D) SrShow All Answers 3. β¦β¦β¦.Cement is prepared from chalk and clay free from iron oxide (A) Slag (B) White (C) Waterproof (D) SilicaShow All Answers 4. β¦β¦.Controls the setting time of cement (A) Gypsum (B) Lime (C) Clay (D) ChalkShow All Answers 5. A normal batch of cement consists of β¦β¦β¦ limestone (A) 75% (B) 50% (C) 65% (D) 85%Show All Answers 6. β¦β¦β¦is used in the manufacturing of cement (A) Blast furnace (B) Rotary kiln (C) Tank furnace (D) Bessemer converterShow All Answers 7. Chemically, Gypsum is (A) MgSO4 (B) CaSO4 (C) BaSO4 (D) FeSO4Show All Answers 8. The amount of β¦β¦.is 62% in cement (A) CaO (B) Al2O3 (C) MgO (D) SO3Show All Answers 9. The length of rotary kiln is β¦β¦β¦ meter (A) 50β75 (B) 10β50 (C) 60β90 (D) 90β120Show All Answers 10. The diameter of rotary kiln is β¦β¦β¦ meter (A) 1β1.5 (B) 2β3.5 (C) 6β7.5 (D) 5β6.5Show All Answers 11. β¦β¦β¦is not present in white cement (A) Iron oxide (B) Copper oxide (C) Calcium oxide (D) Magnesium oxideShow All Answers 12. CaSO4Β·2H2O is the formula of (A) Lime (B) Clay (C) Gypsum (D) ChalkShow All Answers 13. Process of β¦β¦... plays a very important role in setting and hardening of cement (A) Curing (B) Annealing (C) Cladding (D) ScreeningShow All Answers 14. The amount of silicon dioxide in cement is (A) 22% (B) 11% (C) 33% (D) 44%Show All Answers 15. The quantity of gypsum in cement is (A) 2% (B) 8% (C) 5% (D) 7%Show All Answers 16. The process of hydration means (A) Addition of H2 (B) Addition of H2O (C) Removal of H2 (D) Removal of H2OShow All Answers 17. The angle of rotary kiln with the ground is (A) 3Β° (B) 5Β° (C) 10Β° (D) 15Β°Show All Answers 18. The rotary kiln rotates at the rate of β¦β¦.. circles per minute (A) 1β2 (B) 3β4 (C) 5β6 (D) 6β7Show All Answers 19. β¦β¦β¦Cement is used in marble and mosaic work (A) Slag (B) White (C) Waterproof (D) SilicaShow All Answers 20. The process of clinker formation takes place at β¦β¦.. temperature (A) 1450β1600Β°C (B) 1500β1700Β°C (C) 1500β1600Β°C (D) 1300β1450Β°CShow All Answers