Which of the following are the types of footings commonly
used in the concrete construction industry? Correct
Answer ALL
-Pad footing, Strap footing, Combined footing
-Spread footing, Isolated footing, Strip footing
-Mat footing, Continuous footing, Raft footing
What is the minimum slope-away recommended in the
final grading of foundation backfilling after the placement
of concrete? Correct Answer ¼" per foot pitch
Which of the following options is not related to concrete
pouring preparation? Correct Answer Legal site inspector
should be available on site
Which of the following concrete pouring strategies works
well for a long normal slab? Correct Answer Start from
farther area of slab
Which of the following pieces of equipment are commonly
used for manual excavation for small buildings? Correct
Answer Crowbar , pickaxe, shovel
,Explanation:
The answer is crowbar, pickaxe, and shovel because
of the key phrase "small buildings" in the question.
Which of the following activities is performed to measure
the quality of compaction a building foundation? Correct
Answer Proof Rolling
How many methods of construction dewatering are
commonly used in concrete building projects? Correct
Answer 3
Explanation:
There are three dewatering methods as given below:
Well points
Sumps and ditches
Relief wells
Which of the following are the results of a concrete slump
test carried out during the placing of concrete on site?
Correct Answer Zero, True, Shear , collapsed
What is the unit of concrete quantity take-off? Correct
Answer Cubic feet
Which of the following concrete pouring strategies is
commonly adopted while filling stair steps? Correct
Answer From bottom to top
, How much water needs to be added to the concrete to
increase the slump value of a cubic yard of concrete by
one unit? Correct Answer One gallon
Which of the following factors increases the drying
shrinkage as well as creeping in concrete structures ?
Correct Answer Low Temperature & Low Relative
Humidity
Which of the following are three major types of concrete
project cost estimates that are commonly used in the
project planning? Correct Answer Preliminary Estimate,
Detailed Estimate, Engineer's Estimate
Explanation:
Preliminary estimate is general conceptual estimate
based on the conceptual design of a project.
Detailed estimate is based on the detailed scope of
work of the project.
Engineer's estimate is the final estimate based on the
project specifications and plans.
What is the recommended curing time for a normal
concrete between 50°F to 70°F? Correct Answer 7 Days
Explanation:
After 7 days, concrete will be able to withstand
heavier loads, however, heavy machinery should still
be kept away from the concrete.
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