WorksheetsPre Test in Soil
Total questions: 25
Worksheet time: 13mins
The weight of water adsorbed by dry soil particles in a saturated atmosphere expressed as the percentage of weight of oven-dried fine-grained soil mass is referred to as
hygroscopic moisture content
moisture content
plastic limit
liquid limit
2. The sand to be use in field density test is: any clean, dry, free flowing, uncemented passing sieve no. ________, retained sieve no. ________.
3/8 and 100
10 and 200
40 and 200
10 and 100
3.___________ is the lowest moisture content at which the soil remains plastic.
Plastic Limit
Liquid limit
Plasticity Index
Both a and c
4. In the flow curve, the liquid limit is expressed as the moisture content corresponding to ______.
35 blows
15 blows
25 blows
40 blows
5. The higher the fineness modulus the ____________is the aggregate:
finer
coarser
none of the above
6. The ___________ is the difference between the liquid limit and the plastic limit.
Plastic Limit
Liquid Limit
Plasticity Index
None of the above
7. is the smallest size of sieve in which all materials are “permitted” to pass
Maximum SIze
Nominal Maximum Size
Minimum Size
Nominal Minimum Size
8. Condition of aggregate wherein it is completely dry and fully absorbent:
Air-Dry
Saturated Surface Dry
Oven Dry
None of the above
9. What is the size of sieve in which a soil sample for use in a liquid limit test is required to pass?
a) 0.425 mm
b) 0.300 mm
c) 0.150 mm
d) 0.075 mm
10. Test that determines the right amount of mixing water in compacting a soil material and serve as reference in checking the degree of compaction of compacted soil.
Field Density Test
Moisture Content Determination
Moisture Density Relation Test (Compaction Test)
Absorption Test
11. The soil sample as received from the field shall be dried thoroughly in air or in drying apparatus at what temperature?
110 ± 5 °C
Not Exceeding 40 °C
Not Exceeding 60 °C
105 ± 10 °C
12. The temperature of a laboratory oven to attain the constant mass of a soil sample is
Not Exceeding 60 °C
105 ± 10 °C
Not Exceeding 40 °C
110 ± 5 °C
13. ITEM 201 — AGGREGATE BASE COURSE (bluebook 2013): The fraction passing the 0.425 mm (No. 40) sieve shall have a liquid limit not greater than ______ and plasticity index not greater than ______ as determined by AASHTO T 89 and T 90, respectively.
25 and 6
35 and 6
25 and 12
35 and 6
14. After the sample is subjected to Abrasion Test, the recovered materials are then passed on what sieve?
No. 12
No. 10
No. 4
No. 8
15. In Liquid Limit Test, what is the height drop of the brass cup on the base of the liquid limit device?
10 mm
3.2 mm
12 mm
25.4 mm
16. In item 200 – aggregates subbase course, the coarse portion, retained on a 2.00 mm (No. 10) sieve, shall have a mass percent of wear not exceeding _____ by the Los Angeles
Abrasion Tests as determined by AASHTO T 96.
30
80
40
50
17. It is the dividing line between fine and coarse material for concrete aggregates.
Sieve no. 10
Sieve no. 12
Sieve no. 4
Sieve no. 8
18. In a plastic limit test of soil material, what is the minimum weight of sample to be prepared?
10 g
20 g
100 g
8 g
19. What is the required depth of hole in the conduct of in-situ density test of a compacted soil aggregate material?
a) 150mm
b) 200mm
c) 100mm
d) depends on the thickness of the layer under test
20. What test determines the optimum moisture content of a soil aggregate?
moisture content determination
abrasion test
laboratory compaction test
cbr test
21. In soundness test procedure, soak the sample in sodium sulfate for ______ hrs.
15 to 19
16 to 18
15 to 18
16 to 19
22. In specific gravity and absorption test procedure, soak the sample in water until fully absorb for ______ hrs.
16 to 19
16 to 18
15 to 18
15 to 19
23. In the moisture density relation test of an Item 200 – Aggregate Subbase Course, the maximum dry density and optimum moisture content of the material is determined by:
AASHTO T 99, Method C
AASHTO T 99, Method D
AASHTO T 180, Method D
AASHTO T 180, Method C
24. What is the required degree of compaction for a layer of compacted aggregate base course material?
95% minimum
95% maximum
100% minimum
100% maximum
25. What is the required degree of compaction for a layer of compacted subgrade materials?
95% minimum
95% maximum
100% minimum
100% maximum
