Civil Engineering Basic Knowledge

How many days u can use cement from the production date?

  • 3 months from the production date

What should we do after slab casting?

  • We should provide grouting after slab casting for fill up the voids.

How much maximum deflection of a beam should be accepted in American Standard?

  • Span Length in mm/360 =mm

Formula for lapping in reinforcement at tensile zone is 40d (where d is dia).

Formula for lapping in reinforcement at compression zone is 24d.

What type of test should perform for a road’s improved subgrade sand filling:

  • FM of fine aggregates
  • California bearing ratio
  • Dynamic cone penetration test
  • MDD of fine aggregate
  • Field Dry Density

 

What type of test should perform for earth filling in Embankment with specified soil:

  • Plasticity index

What is the volume of per bag cement?

  • 1.25 cubic ft

What is the weight of per bag cement?

  • 50 kg

How much water absorb of a brick if the brick take rest for 24 hours in underneath the water?

  • 1/5 or 1/6 of the brick weight.

What is the measurement of a brick?

  • 9.5 “ * 4.5 “ * 2.75 “ (without mortar)
  • 10” * 5” * 3” (with mortar)

 

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