FDOT EXAM 3 TRAFFIC CONTROL AND SAFETY WORKBOOK ACTUAL TEST PAPER
QUESTIONS CORRECT ANSWERS GRADED A PLUS
Question:
When can unmetered water be added to the concrete?
Answer:
Not at all.
Question:
Do not allow the total number of revolution at mixing speed to exceed:
Answer:
160 Revolutions
Question:
After all materials have been charged into the transit mixer drum, the concrete must be mixed at
how many revolutions at the plant before leaving for the project?
Answer:
70 to 100
Question:
When the water meters / scales are calibrated, prior to production, at what frequency should they be
checked there after?
Answer:
3 moths
, Question:
To what accuracy should the scales for weighing cement, pozzolan, slag and aggregates at the plant
be maintained
Answer:
0.5% of maximum load normally handled
Question:
For concrete containing a water-reducing retarding admixture, in an agitator truck, the maximum
time for depositing the concrete shall not exceed:
Answer:
90 minutes
Question:
If a load of concrete has been rejected due to excessive slump, the concrete may remain in the
transporting vehicle to reduce the slump.
Answer:
Is not allowed.
Question:
Who places the orders for concrete with the producer?
Answer:
The contractor
Question:
The minimum normal sampling frequency for the chloride content of structural concrete is:
Answer:
1 per design mix in use from the first day of production and every 30 calendar days or less
thereafter.
QUESTIONS CORRECT ANSWERS GRADED A PLUS
Question:
When can unmetered water be added to the concrete?
Answer:
Not at all.
Question:
Do not allow the total number of revolution at mixing speed to exceed:
Answer:
160 Revolutions
Question:
After all materials have been charged into the transit mixer drum, the concrete must be mixed at
how many revolutions at the plant before leaving for the project?
Answer:
70 to 100
Question:
When the water meters / scales are calibrated, prior to production, at what frequency should they be
checked there after?
Answer:
3 moths
, Question:
To what accuracy should the scales for weighing cement, pozzolan, slag and aggregates at the plant
be maintained
Answer:
0.5% of maximum load normally handled
Question:
For concrete containing a water-reducing retarding admixture, in an agitator truck, the maximum
time for depositing the concrete shall not exceed:
Answer:
90 minutes
Question:
If a load of concrete has been rejected due to excessive slump, the concrete may remain in the
transporting vehicle to reduce the slump.
Answer:
Is not allowed.
Question:
Who places the orders for concrete with the producer?
Answer:
The contractor
Question:
The minimum normal sampling frequency for the chloride content of structural concrete is:
Answer:
1 per design mix in use from the first day of production and every 30 calendar days or less
thereafter.
