Correct Answers
According to the special inspection manual who should the special inspector notify of their
presence on the job site? - Correct Answer - Contractor
Which of the following should be noted in your daily report? - Correct Answer - Concrete is
being poured at a 6 inch slump when the plans specify a 4 inch slump
What type of cement is frequently used during cold weather concreting? - Correct Answer - Type
III
What is the minimum clear spacing for parallel #11 bars in a layer? - Correct Answer - 1db
If concrete for a structural desk has 1-1/2 inch course aggregate, what is the minimum clear
distance required between parallel individual reinforcing bars? - Correct Answer - 2 inches
Which of the following is required for the fabrication of steel embeds that will cast in a podium
deck, if the embeds are fabricated by an approved fabricator? - Correct Answer - No inspector
What is the minimum slump allowed for concrete that is specified 5 inch max? - Correct Answer
- 2.5 inches
A special inspector is responsible for all of the following except - Correct Answer - Structural
Observation
During initial curing, cylinder concrete shall be stored within a temperature range of __________
- Correct Answer - 60-80 degrees
Whenever strength tests are cast, what other tests should be performed? - Correct Answer -
Temperature, slump, and air content
How often must strength tests for each class of concrete be taken? - Correct Answer - Every
150 cubic yards
After notifying a contractor of discrepancies, an RFI is issued by the Engineer and corrections
made according to RFI, what further action is required? - Correct Answer - No further action is
required
Three cores shall be taken for each strength test more than _________ below value F'c? -
Correct Answer - 500 psi
, What is the minimum sized required sample when casting strength specimens? - Correct
Answer - 1 cubic ft.
What is the minimum concrete coverage for conduits if the concrete is exposed to weather? -
Correct Answer - 1.5 in.
Which is the best method to consolidate concrete for a poured in place column? - Correct
Answer - Internal vibrator
What is the minimum required clear spacing between 2 inch diameter conduits embedded in a
12 inch structural deck? - Correct Answer - 4 inches
If 4000 psi concrete was placed for wall panels, how long much the panels be kept moist if
curing compound or accelerated curing isn't used but the concrete was high early strength? -
Correct Answer - 3 days
When casting 6x12 cylinders of 5000 psi concrete with a slump of 1/2 inch, consolidation should
be by ___________ - Correct Answer - Vibration
What is a Swiss hammer used to measure? - Correct Answer - Compressive strength of
concrete
During initial curing, cylinders of concrete shall be stored within a range of _____________ -
Correct Answer - 68-80 degrees
What is the minimum spacing (in inches) for #6 vertical bars in a shotcrete wall, in the curtain
closest to the nozzle? - Correct Answer - 9 inches
What is the minimum number of longitudinal bars in a column, when enclosed by circular ties? -
Correct Answer - 4
Rebar placement for wall panels in a single story tilt up, in seismic design category E, requires
what type of special inspection? - Correct Answer - Periodic
The top of piles shall be embedded not less than ____________ in to pile caps. - Correct
Answer - 3 inches
What type if splice cannot be used for bottom bars in a column strip for a two way slab? -
Correct Answer - Class A tension splice
Undesirable hot weather effects may include all of the flowing to? - Correct Answer - Decreased
permeability