| 1 |
What is the primary advantage of using cup lump rubber (CLR) in cold mix asphalt (CMA)?
|
Improves functional properties of the asphalt |
|
เพิ่มเสถียรภาพทางความร้อนและความยืดหยุ่นของน้ำมันดิน |
Field performance of asphalt pavement maintenance using Cup Lump Rubber Modified Asphalt (CMA) |
7 |
-.50
-.25
+.25
เต็ม
0
-35%
+30%
+35%
|
| 2 |
Which property of CMA is significantly improved by the addition of CLR?
|
Tensile strength |
|
เพิ่มเสถียรภาพทางความร้อนและความยืดหยุ่นของน้ำมันดิน |
Field performance of asphalt pavement maintenance using Cup Lump Rubber Modified Asphalt (CMA) |
7 |
-.50
-.25
+.25
เต็ม
0
-35%
+30%
+35%
|
| 3 |
If the tensile strength of CMA increases by 26% due to the addition of CLR and the original tensile strength was 5 MPa, what is the new tensile strength?
|
6.3 MPa |
|
(26/100*5)+5 |
เปอรณเซ็น |
7 |
-.50
-.25
+.25
เต็ม
0
-35%
+30%
+35%
|
| 4 |
Given that the rut depth decreases by 70% when CLR is added to CMA and the original rut depth was 10 mm, what is the new rut depth?
|
3 mm |
|
10-(70/100*10) |
เปอร์เซ็น |
7 |
-.50
-.25
+.25
เต็ม
0
-35%
+30%
+35%
|
| 5 |
If the CMA with CLR has a TSR (Tensile Strength Ratio) value of 104% and the minimum requirement is 80%, by what percentage does the TSR exceed the requirement?
|
24% |
|
เพราะว่าเป็นข้อกำหนด |
Tensile Strength Ratio (TSR) for each Mix Type |
7 |
-.50
-.25
+.25
เต็ม
0
-35%
+30%
+35%
|
| 6 |
What is the potential increase in moisture damage resistance for CMA-CR compared to conventional CMA if the improvement is 12%?
|
12% |
|
CMA-CR เท่ากับ CMA |
Tensile Strength Ratio (TSR) for each Mix Type |
7 |
-.50
-.25
+.25
เต็ม
0
-35%
+30%
+35%
|
| 7 |
If the shear resistance of CLR-modified CMA increases due to the membrane effect, which physical property is most directly influenced?
|
Elasticity |
|
shear มีผลต่อElasticity |
Elastic |
7 |
-.50
-.25
+.25
เต็ม
0
-35%
+30%
+35%
|
| 8 |
The viscosity of CLR-modified bitumen at 135°C is 1.16 Pa·s. If the shear rate is 50 s^-1, what is the shear stress?
|
58 Pa |
|
1.16*50 |
Elastic |
7 |
-.50
-.25
+.25
เต็ม
0
-35%
+30%
+35%
|
| 9 |
If the mass loss in the Cantabro test for CMA-CR is 14.6% and the maximum accepted limit is 20%, by how much does CMA-CR fall below the limit?
|
5.4% |
|
14.6%*20% |
คูณเปอร์เซ็น |
7 |
-.50
-.25
+.25
เต็ม
0
-35%
+30%
+35%
|
| 10 |
What is the significance of using cup lump rubber in the context of environmental sustainability?
|
It helps in lowering carbon emissions during production. |
|
เพราะว่าจะเป็นการลดพลาสติก |
https://www.sritranggroup.com/en/sustainability/activities/view?id=10 |
7 |
-.50
-.25
+.25
เต็ม
0
-35%
+30%
+35%
|
| 11 |
What is one of the emerging trends affecting China's oil and gas pipeline development strategies?
|
Enhanced flavor |
|
ลดคาร์บอน |
An overview of the oil and gas pipeline safety in China |
7 |
-.50
-.25
+.25
เต็ม
0
-35%
+30%
+35%
|
| 12 |
What is the proportion of natural gas pipelines in the total length of long-distance oil and gas pipelines in China as of 2022?
|
60% |
|
อ้างอิงตามหลักสถิติ |
An overview of the oil and gas pipeline safety in China |
7 |
-.50
-.25
+.25
เต็ม
0
-35%
+30%
+35%
|
| 13 |
If the total length of long-distance oil and gas pipelines in China is 180,000 km, how many kilometers are dedicated to natural gas pipelines?
|
144,000 km |
|
อ้างอิงตามหลักสถิติ |
Length of Pipeline: Gas - China |
7 |
-.50
-.25
+.25
เต็ม
0
-35%
+30%
+35%
|
| 14 |
According to the article, if the target length for oil and gas pipelines is 210,000 km by 2025, how many kilometers need to be constructed from the 2022 total?
|
60,000 km |
|
อ้างอิงตามหลักสถิติ |
Global gas pipeline expansion: Nearly US$200 billion under construction, with Asia building over 80% |
7 |
-.50
-.25
+.25
เต็ม
0
-35%
+30%
+35%
|
| 15 |
If the failure rate of oil and gas pipelines in Europe is 0.29 per year per hundred kilometers, what is the failure rate per year for a pipeline network of 1,000 kilometers?
|
2.9 failures |
|
2.9*1000 |
อัตราส่วน |
7 |
-.50
-.25
+.25
เต็ม
0
-35%
+30%
+35%
|
| 16 |
What is one of the main causes of oil and gas pipeline failures in China according to the article?
|
Oil theft through drilling |
|
มีการขโมยน้ำเกิดขึ้น |
Most fatal oil & gas pipeline accidents through history |
7 |
-.50
-.25
+.25
เต็ม
0
-35%
+30%
+35%
|
| 17 |
Assuming the failure rate in the United States is 0.14 per year per hundred kilometers, calculate the expected number of failures per year for a 1,500 kilometers pipeline network.
|
2.7 failures |
|
0.14*1.500 |
อัตราส่วน |
7 |
-.50
-.25
+.25
เต็ม
0
-35%
+30%
+35%
|
| 18 |
If a pipeline defect inspection technology improves detection efficiency by 25% and the current detection efficiency is 80%, what will be the new detection efficiency?
|
85% |
|
25% * 80% |
คูณเปอร์เซ็น |
7 |
-.50
-.25
+.25
เต็ม
0
-35%
+30%
+35%
|
| 19 |
If a vibration signal monitoring system faces a 15% reduction in noise levels due to a new technology and the original noise level was 200 units, what is the new noise level?
|
170 units |
|
200-(15*200/100) |
เปอร์เซ็น |
7 |
-.50
-.25
+.25
เต็ม
0
-35%
+30%
+35%
|
| 20 |
For a hydrogen pipeline with an embrittlement rate of 0.05% per year, calculate the total embrittlement after 10 years.
|
0.5% |
|
0.05*10/100*100 |
เปอร์เซ็น |
7 |
-.50
-.25
+.25
เต็ม
0
-35%
+30%
+35%
|