Basic Civil Engineering Q&A -3

All the questions and answers have been referred from various online sources. Hope they are useful . We have already updated 2 Sets of Q&A (Check previous posts)

• Fineness of cement is measured in the units of
  • volume / mass
  • mass / volume
  • area / mass
  • mass / area
  Answer — area / mass
  
  • The initial setting time of cement depends most on
    • tricalcium aluminate
    • tricaleium silicate
    • tricalcium aluminoferrite
    • dicalcium silicate
    Answer — tricalcium aluminate 
  • Sand in cement mortar is used for
    1.increasing the strength
    2.reducing the shrinkage
    3.decreasing the surface area of the binding material
    4.decreasing the quantity of cement
    Which of these statements are correct?
    • 1,2 and 4
    • 1,2 and 3
    • 1,3 and 4
    • 2,3 and 4
    Answer — 1,2 and 3
    
    • According to the Indian Standard Specifications, concrete should be cured under a humidity of
      • 90%
      • 80%
      • 70%
      • 60%
      Answer — 90%
      
      Seasoning of timber results in
      1.increased strength
      2.increased durability
      3.reduced resilience
      4.increased dimensional stability
      Which of these statements are correct?
      • 1,2 and 4
      • 1,2 and 3
      • 1,3 and 4
      • 2,3 and 4
      Answer — 1,2 and 4
      
      • The standard size of a brick is
        • 20cm x 10cm x 10 cm
        • 19cm x 9cm x 9cm
        • 18cm x 9cm x 9cm
        • 18cm x 10cm x 10 cm
        Answer — 19cm x 9cm x 9cm