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NICET LEVEL 3 NEWEST 2025 ACTUAL EXAM
COMPLETE 100 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A+ (BRAND NEW VERSION!)
How should forms be placed for drilled shafts? - ANSWER- Removable forms should be placed atleast 24" below finished ground when the top of the shaft is above ground.
What type of concrete is used for drilled shaft? - ANSWER- Class A concrete should be used, while type S is used for underwater applications
When is indepth inspection of temporary works is required? - ANSWER-Inspection should take place not more than 24 hours prior to concrete pour
When can concrete forms for drilled shafts be removed? - ANSWER-When concrete shaft hasnt been exposed to water for
- days or has reached its 28 day strength
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When should drilled shaft concrete be consolidated? - ANSWER-Do not consolidate concrete until stagnant water is removed from the top surface.
How should tremies to placed during concrete pour for drilled shafts? - ANSWER-Keep watertight tremie discharge immersed atleast 10' below surface of concrete at all times. Concrete should be poured continuously starting at the bottom of shaft elevation.
To cure concrete girders, what should the relative humidity be? - ANSWER-cure in a saturated environment Atleast 85%
How deep should thermocouples be installed when monitoring prestressed concrete temps? - ANSWER-Imbed termocouple 6- 8" into the top and bottom or girder. Accurate to +/- 5 degrees
What temperature should prestressed concrete be kept during curing? - ANSWER-above 60 degrees until reaches release strength
For the heating of concrete method for prestressed concrete, what are the requirements? - ANSWER-No more than 100 2 / 4
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degrees for the first 2 hours after placing and increase temp no more then 40 degrees with a max temp of 160 degrees
What are the requirements for cooling concrete for prestressed concrete? - ANSWER-reduce temps no more than 40 degrees per hour until temps reach 20 degrees above outside temps
What is used to tension steel members? - ANSWER-Hydraulic jacks are used and measured jack force with pressure gauge or load cell
How often are gauges calibrated? - ANSWER-Every 6 months
When should hydraulic jacks not be used? - ANSWER-if loads are less than 1/4 or more than 3/4 of total capacity
When should prestressed concrete members be transported? - ANSWER-Until compressive strength is achieved and atleast 7 days old
For pre-tensioned members, what should the steel be protected from and for how long prior to encasement? - ANSWER-protect 3 / 4
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from contamination and corrosion if stressing ed is exposed to weather for more then 36 hours
What is the maximum allowance for strands to unwind? - ANSWER-no more than one turn, must be free of kinks and twists
When should the jack force be recorded for pre-tensioned steel?
- ANSWER-when strands are tensioned to 20% of final jacking
force
At what temperature should reinforcements bars should be kept?
- ANSWER-Bars should be kept within 25 degrees of the temps
of concrete being placed
When should the tension of strands be checked? - ANSWER- Check strands 3 hours prior to concrete placement
When should strands be re tensioned? - ANSWER-When there is a loss of prestress in excess of 3%
How long should concrete be protected from the elements? - ANSWER-For atleast 7 days
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