Materials — Quiz 1

Questions in this quiz (10)

1. Which of the following cement types is used for high early strength?

   • Type I
   • Type II
   • Type III
   • Type IV

2. Which of the following statements is false?

   • Initial set occurs when cement paste begins to stiffen
   • Final set occurs when cement paste gains significant hardness
   • Specific gravity of Portland cement is approximately 3.15
   • Cement gains full strength within 24 hours

3. Does wood shrink when drying?

   • No, wood does not shrink
   • Yes, wood shrinks as moisture content decreases
   • Only hardwood shrinks
   • Only softwood shrinks

4. Wood is weakest in which direction?

   • Longitudinal
   • Radial
   • Transverse
   • Equal in all directions

5. Kiln drying of wood is performed to:

   • Increase weight
   • Reduce moisture content
   • Increase defects
   • Change wood species

6. Which of the following materials commonly experiences creep behavior?

   • Steel
   • Concrete
   • Asphalt
   • Glass

7. Which of the following materials is considered a viscoelastic material?

   • Concrete
   • Asphalt
   • Aluminum
   • Sand

8. Which of the following factors is considered in asphalt pavement design?

   • Traffic loading
   • Temperature variations
   • Material properties
   • All of the above

9. A concrete mix design specifies a water content of 160 kg/m³ and a cement content of 350 kg/m³. What is the water-cement ratio for this mix?

   • 0.36
   • 0.46
   • 0.52
   • 0.60

10. A standard concrete cylinder with a diameter of 150 mm is tested in compression and fails at a load of 520 kN. Determine the compressive strength of the concrete.

    • 18.7 MPa
    • 22.4 MPa
    • 29.4 MPa
    • 33.1 MPa