MANUAL REVIEWER 5 Flashcards
What will happen to the asphalt when the air void decreases in the Marshall Stability Test
A. Either C or B
B. Stays the same
C. Decreases
D. Increases
D
What is the minimum weight per bag of Construction Lime (Hydrated) if packed in paper bags
A. 23kg
B. 2.3kg
C. 4.5kg
D. 11.5kg
B
How much is the reduction of the concrete strength when the stress concentration is introduced when the top surface of a concrete specimen is rough and not truly plane
A. 75%
B. 20%
C. 25%
D. None
B
This is the most recommended class of concrete for all superstructures
A. Class A
B. Class B
C. Class P
D. Class A & B
A
What is the best thing to do after pouring of concrete to minimize cracking and ensure proper development of the concrete strength?
A. Sawing of joints
B. Grooving
C. Curing
D. Asphalting
C
What is the maximum time that a concrete vibrator shall be inserted in a vertical position
A. 10 sec
B. 15 sec
C. 20 sec
D. 30 sec
B
In conducting plastic limit test, what is the diameter of the thread soil samples to be rolled by hands
A. 3.2mm
B. 2.3mm
C. 4.2mm
D. 2.5mm
A
This test determines the crushing of strength of aggregates to ensure that coarse aggregates will not degrade to smaller ones
A. Grading
B. Decantation
C. Abrasion
D. CBR
C
In accepting completed concrete pavement poured by lane thickness determination shall come out by obtaining one core from every ___
A. 1000 m
B. 100 m
C. 500 m
D. 200 m
D
What is the flexural strength of the beam samples
A. 3.8 MPa
B. 4.5 MPa
C. 650 psi
D. 200 psi
A
What do you call the third test which will be conducted whenever the first two tests have the same results
A. Decision Test
B. Referee Test
C. Tie Breaker Test
D. Final Test
B
The following 3 cores with strength test results were taken from a pavement section. If the design strength is 3000 psi, the concrete represented by the cores are:
2600 psi
3400 psi
3000 psi
A. Considered Adequate
B. Considered Inadequate
C. Accepted with price adjustments
D. Subject for Re-Core
A
What do you call the application of asphaltic material and aggregate to an existing surface for sealing it against the infiltration of water surface moisture
A. Prime Coat
B. Tack Coat
C. Seal Coat
D. A & C
C
What is the minimum placing temperature for bituminous mixture measured in the truck prior to dumping
A. 157 deg C
B. 159 deg C
C. 169 deg C
D. 107 deg C
D
When is the sand very coarse, what range of its fineness modulus?
A. Highest
B. Lowest
C. Zero
D. Negative
A
What is the range of percent asphalt content in hot laid bituminous mixture
A. 5-8
B. 3-5
C. 3-12
D. 3-8
A
What is the tolerance of plain surface compression test specimen that needs capping
A. Within 0.10 mm
B. Within 0.05 mm
C. Within 0.15 mm
D. Within 0.12 mm
B
With the following water-cement ratio, which will produce the lowest strength of concrete, considering the same number of bags of cement and proportion of aggregates
A. 0.40
B. 0.50
C. 0.60
D. 0.45
C
What is the reason why there is a need to conduct testing of cylinder samples prior to 28 days curing time
A. Determine the design mix
B. Determine the strength development
C. Measures consistency of mix
D. For no valid reason
B
There is 1-QT reinforcing steel bars required for every ___
A. 5000 kg
B. 10000 kg
C. 15000 kg
D. 20000 kg
B
What is the maximum ambient temperature during the placing of concrete
A. 17 deg C
B. 23 deg C
C. 32 deg C
D. 25 deg C
C
What is the dimension tolerance of Gabions
A. +-5%
B. +-3%
C. +-10%
D. +-8%
A
What is the maximum density deficiency of the asphalt pavement for it to be accepted
A. 3%
B. 2%
C. 1%
D. 5%
B
What are the interconnected cracks forming a series of small blocks resembling alligator’s skin of chicken wire
A. Crocodile
B. Alligator
C. Relfection
D. Deflection
B