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Concrete Practice Test |Questions and 100% Correct Answers| Latest Update
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Concrete Practice Test |Questions and100% Correct Answers| Latest Update
If the course aggregate for concrete to be placed in a structural deck is 1 inch, what is
the minimum clear spacing between parallel reinforcing bars? - ANSWER 1 1/3 inches
What is the w/c (water/cement ratio) for a load of concrete batched with 210 gallons
of water and 3500 lbs of Portland cement? - ANSWER .50
During final curing, cylinders of 6000 psi concrete shall be stored within a
temperature range of ______. - ANSWER 73.5 +/- 3.5 degrees F
A seismic hook has a _____bend with a 6db but not less than 3 inch extension at the
free end. - ANSWER 135 degrees
Whenever strength tests are cast, what other tests should be performed? -
ANSWER Temperature, slump and air content
Mixing water for a load of ready mix concrete shall consist of all of the
following except..... - ANSWER Wash water from previous load
Construction joints in floors shall be located in the _____of spans of slabs, beams and
girders. - ANSWER Middle third
, After obtaining composite sample, slump test should be started within ______minutes. -
ANSWER 5
Under which of the following conditions are partially embedded reinforcing bars allowed
to be field bent? - ANSWER If shown on the approved construction documents
What is the minimum sized spiral permitted in cast-in-place construction? - ANSWER
3/8 in
According to the referenced standard ACI 318, in seismic design category E, the hook
on a circular hoop tie must have at least a..... - ANSWER 90 degree bend
What is the minimum sized required sample when casting strength specimens?
- ANSWER 1 cubic ft.
What is the minimum concrete coverage for conduits in a concrete wall exposed
to weather? - ANSWER 1 1/2 in
During initial curing, cylinders of 6000psi concrete shall be stored within a
temperature of _______? - ANSWER 68* F to 78* F
What is the minimum spacing (in inches) for #6 vertical bars in a shotcrete wall, in
the curtain closest to the nozzle? - ANSWER 9 inches
What is the maximum spacing of temperature reinforcement in a 5 in. Slab on grade?
- ANSWER 18in
All of the following are concrete mixture requirements except..... - ANSWER Minimum
size of the course aggregate.
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