FDOT Concrete Inspection 2

Question 1

What is the minimum number of cylinders that must be cast per concrete test per FDOT requirements for acceptance testing?

Accepted Answer

2

Answer

1

Answer

3

Answer

4

Question 2

According to FDOT, what is the maximum allowable slump for vibrated concrete in bridge deck construction?

Accepted Answer

4 inches

Answer

2 inches

Answer

3 inches

Answer

5 inches

Question 3

What does FDOT Class V concrete designation indicate?

Accepted Answer

High-strength structural concrete above 6,000 psi

Answer

Low-strength fill concrete

Answer

Precast prestressed concrete

Answer

Drilled shaft concrete

Question 4

When should a concrete inspector reject a load of ready-mix concrete arriving on an FDOT project?

Accepted Answer

All of the above

Answer

If drum has rotated more than 100 revolutions

Answer

If more than 90 minutes have elapsed since water was added

Answer

If temperature exceeds 85°F

Question 5

What FDOT specification requires contractors to submit a concrete mix design for approval before use?

Accepted Answer

Section 346

Answer

Section 105

Answer

Section 400

Answer

Section 450

Question 6

According to FDOT guidelines, what is the maximum concrete free-fall height permitted during placement to prevent segregation?

Accepted Answer

6 feet

Answer

2 feet

Answer

3 feet

Answer

5 feet