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# คำถาม คำตอบ ถูก / ผิด สาเหตุ/ขยายความ ทฤษฎีหลักคิด/อ้างอิงในการตอบ คะแนนเต็ม ให้คะแนน
1


What is the primary goal of using multimodal transportation in logistics as per the discussed research?

To minimize transportation costs and risks while delivering on time.

The main point of combining different transit types is to cut down shipping expenses and safety hazards while keeping shipments on schedule

Guided by supply chain logistics optimization and risk mitigation principles.

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2


Which method is primarily used for decision-making in multimodal transportation route selection?

A combination of AHP and ZOGP.

The model mixes AHP to figure out what criteria matter most and ZOGP to actually solve and select the perfect shipping route.

Based on Multi-Criteria Decision-Making (MCDM) and mathematical optimization structures.

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3


According to the case study, what is the primary commodity considered for transportation?

Perishable food items.

This specific study looks at fresh foods that spoil fast, which means they need quick transport and tight temperature control.

Relying on cold chain management guidelines and agricultural product logistics.

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4


What is the role of the Analytic Hierarchy Process (AHP) in the multimodal transportation decision support model?

To establish weights for different criteria based on expert judgment.

AHP is used here to turn expert opinions into solid percentage weights so the decision criteria stay realistic.

Grounded in the Analytic Hierarchy Process matrix calculation standards.

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5


Which risk is NOT considered in the list of risks assessed for multimodal transportation route selection?

Health risk.

The evaluation strictly covers transport logistics factors like financial, legal, security, and cargo damage issues, completely leaving health elements out of the equation.

Guided by industrial risk modeling and freight transportation management frameworks.

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6


What does ZOGP stand for, and what is its role in the model?

Zero-One Goal Programming - It's used to solve the optimal route selection problem.

ZOGP acts as the primary optimization tool in this study, choosing the absolute best transit routes based on binary decisions under specific resource constraints.

Relying on multi-objective optimization models and operations research methodologies.

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7


Which of the following is NOT a mode of transport discussed in the multimodal transportation case study?

Air.

The case study looks closely at combinations of rail, sea, and road transport networks, skipping air freight entirely for this specific cargo scenario.

Adhering to the defined intermodal transportation infrastructure limits within the study.

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8


In the context of the AHP used in the study, what does a consistency ratio (CR) less than 0.1 indicate?

The judgments are sufficiently consistent.

A consistency ratio under the 0.1 benchmark confirms that the expert evaluations are logical, uniform, and stable enough to proceed with the weightings.

Based on Saaty's standard consistency verification requirements in the Analytic Hierarchy Process (AHP).

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9


What is the primary purpose of sensitivity analysis in the context of the ZOGP model used in the study?

To check the robustness of the model's outcomes against changes in input parameters.

Sensitivity analysis is used to test if the chosen route remains optimal even when input values, like costs or risk probabilities, fluctuate.

Grounded in parametric stability evaluation and robust decision support system auditing.

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10


Which of the following best describes the role of multimodal transportation in global trade according to the study?

It is essential for making local industry and international trade more efficient and competitive.

Combining different transit types lowers operational hurdles, making global logistics smoother and boosting local businesses globally.

Grounded in global supply chain integration and macro-economic competitiveness theory.

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11


What is the main natural cause of landslides along the Jammu-Srinagar National Highway?

Prolonged precipitation

Non-stop, heavy rainfall over days heavily saturates the mountain slopes along this highway, triggering massive landslides.

According to hydro-meteorological hazard analysis and slope stability physics.

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12


According to the article, what technology is used to assess landslide-prone areas along the highway?

Remote sensing and ARIMA modeling

The researchers used satellite remote sensing data to map the terrain changes and used ARIMA math models to predict future landslide trends.

Relying on GIS spatial analysis and time-series statistical forecasting methodologies.

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13


What is the relationship between land surface temperature (LST) and underground water level mentioned in the study?

Inversely proportional

Higher ground temperatures bake out surface moisture, while lower water tables generally match up with these dry, hot surface periods.

Based on environmental physics and correlation analysis between LST and groundwater levels.

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14


How is the threshold value for landslide triggering determined as per the study?

Using field surveys and geotechnical parameters

The exact sliding limits are calculated using actual measurements from soil tests, slope angles, and rock physics in the field.

Guided by soil mechanics and empirical slope engineering threshold standards.

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15


If the mean monthly rainfall in April is 150 mm and it increases by 20% in May, what is the mean monthly rainfall in May?

180 mm

A 20% increase on 150 mm is calculated as 150×1.20=180 mm, which gives the new mean rainfall level for the month.

Basic percentage arithmetic equation: New Value=Base Value×(1+Percentage Increase).

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16


Given that the slope angle in a studied section is 45 degrees and the friction angle (phi) is 11 degrees, what is the ratio of friction angle to slope angle?

0.24

The ratio is calculated by dividing the friction angle by the slope angle: 45 11 ​ ≈0.244, which rounds down perfectly to 0.24.

Basic geometric ratio calculation equation: Ratio= Slope Angle/Friction Angle ​

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17


If the specific gravity of soil is 2.74 and the natural density is 1.69 kg/cm³, what is the approximate weight of 1 cubic meter of soil?

1690 kg

The natural density is given directly as 1.69 kg/cm 3 . Since 1 cm 3 equals 10 −6  m 3 , a full cubic meter weighs exactly 1.69×10 ^3 =1690 kg. The specific gravity value is extra data.

Geotechnical conversion equation: Weight per m ^3 =Density in g/cm ^3 ×1000.

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18


Assuming that the direct shear of soil is 0.05 kg/cm², how much shear force is exerted on a 10 cm x 10 cm area?

5 kg

The total area is 10 cm×10 cm=100 cm 2 . Multiplying this area by the direct shear strength gives the total force: 0.05 kg/cm 2 ×100 cm ^2 =5 kg.

Fundamental shear physics equation: Force=Shear Stress×Area.

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19


If the rate of land surface temperature change is 0.1°C per year starting at 24.94°C in 2020, what will be the LST in 2024?

25.34°C

The time span from 2020 to 2024 is exactly 4 years. The total increase is 4 years×0.1 ∘ C/year=0.4 ∘ C. Adding this to the baseline gives 24.94 ∘ C+0.4 ∘ C=25.34 C

Linear trend equation: LST 2024 ​ =LST 2020 +(Rate×Δt).

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20


What method does the study use to forecast future landslides?

ARIMA and SPSS Forecasting Model

The study relies on mathematical time-series modeling using ARIMA trends and SPSS software package tools to reliably forecast landslide events.

Standard predictive geostatistics and computer-aided data forecasting frameworks.

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ผลคะแนน 126.5 เต็ม 140

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