58 Construction Materials Chapter Wise McQ Test of 25 Question #15 Construction Materials Chapter Wise McQ Test of 25 Question for PSC, NEC, UPSC, SSC and Many more. 1 / 25 1. Minimum crushing strength of first class brick is A. 10.5 kg/cm² B. 105 kg/cm² C. 7 kg/cm² D. 70 kg/cm² 2 / 25 2. The minimum compressive strength of 1st class bricks should be A. 75 kg/cm² B. 90 kg/cm² C. 100 kg/cm² D. 120 kg/cm² 3 / 25 3. Minimum compressive strength of first class brick should be A. 5 N/mm² B. 7.5 N/mm² C. 9 N/mm² D. 10 N/mm² 4 / 25 4. Crushing strength of a first class brick should not be less than A. 3.5 N/mm² B. 7.0 N/mm² C. 10.5 N/mm² D. 14.0 N/mm² 5 / 25 5. Minimum crushing strength of second class brick is A. 10.5 kg/cm² B. 105 kg/cm² C. 7 kg/cm² D. 70 kg/cm² 6 / 25 6. The minimum compressive strength of 2nd class bricks should be A. 75 kg/cm² B. 90 kg/cm² C. 100 kg/cm² D. 120 kg/cm² 7 / 25 7. First class brick when immersed in cold water for 24 hours should not absorb water more than A. 15% B. 20% C. 22% D. 25% 8 / 25 8. The maximum percentage of water absorption of 1st class bricks in 24 hour should be limited to A. 10% B. 15% C. 20% D. 24% 9 / 25 9. The maximum percentage of water absorption of 2nd class bricks in 24 hour should be limited to A. 10% B. 15% C. 20% D. 24% 10 / 25 10. The maximum percentage of water absorption of 2nd class bricks in 24 hour should be limited to A. 10% of dry weight B. 15% of dry weight C. 20% of dry weight D. 22% of dry weight 11 / 25 11. When soaked in water for 24 hours, first class brick should not increase in weight by more than A. 10% B. 15% C. 20% D. 25% 12 / 25 12. First class brick is used in A. unplastered faces of masonry B. plastered faces of masonry C. temporary works D. all of above 13 / 25 13. Brick used for temporary works is A. first class brick B. second class brick C. third class brick D. under burnt brick 14 / 25 14. Low porosity brick has A. Low strength B. High strength C. More absorption capacity D. All of the above 15 / 25 15. Jhama bricks are A. Over burnt B. Under burnt C. Kuccha D. None of the above 16 / 25 16. Over burnt or Jhama brick is used for A. unplastered faces of masonry B. plastered faces of masonry C. temporary works D. making aggregate for foundation 17 / 25 17. Engineering brick should be A. strong, hard B. impermeable C. smooth D. all of the above 18 / 25 18. If fine sand or ash is sprinkled on the inner surface of mould, the bricks are known as A. Slope molulded B. Sand moulded C. Table moulded D. Machine moulded 19 / 25 19. The brick used for resisting high temperature is A. first class brick B. second class brick C. third class brick D. refractory brick 20 / 25 20. The type of bricks used for lining of furnace/combustion chamber is A. Refractory B. Machine made C. Hand made D. 1st class 21 / 25 21. Refractory bricks are used for A. Load bearing walls B. retaining walls C. partition walls D. combustion chambers 22 / 25 22. Which of the following bricks are used for lining of furnaces ? A. overburnt bricks B. underburnt bricks C. refractory bricks D. first class bricks 23 / 25 23. Refractory bricks are used for A. retaining walls B. columns C. piers D. combustion chambers 24 / 25 24. Refractory bricks are specially manufactured A. To withstand high crushing pressure B. To withstand high temperature C. To have high insulation against sound D. None of the above 25 / 25 25. Refractory bricks resist A. high temperature B. chemical action C. dampness D. all of the above Your score is The average score is 60% 0% Restart quiz Exit civil engineerconstruction materialsmcqcivilmock testnecpscupsc
