CMA1501
MAJOR TEST 1 2025
UNIQUE NO.
DUE DATE: 24 JUNE 2025
, QUESTION 1: ENGINEERING PROPERTIES [10 MARKS]
1.1. Complete the table:
Engineering
Description
Property
1.1.1. Strength The material is resistant to deformation under stress.
1.1.2. Thermal The tendency of a material to change in volume in response to a
Expansion change in temperature.
1.1.3. Thermal Cast iron pots are used to cook food in a household because cast
Conductivity iron conducts and retains heat well.
The water is transported from the reservoir to the consumer
1.1.4. Corrosion
through PVC pipes because PVC resists corrosion and chemical
Resistance
degradation.
The ability of a material to be hammered or rolled into thin sheets
1.1.5. Malleability
without breaking.
QUESTION 2: SOIL [20 MARKS]
2.1. Explain the formation of soil (4 marks)
Soil is formed through the weathering of rocks and the decomposition of organic
materials over time. Physical weathering breaks rocks into smaller particles, while
chemical and biological processes further transform the materials. Factors like climate,
parent rock, topography, organisms, and time contribute to soil formation.
2.2. Soil Stabilisation Comparison Table (6 marks)
MAJOR TEST 1 2025
UNIQUE NO.
DUE DATE: 24 JUNE 2025
, QUESTION 1: ENGINEERING PROPERTIES [10 MARKS]
1.1. Complete the table:
Engineering
Description
Property
1.1.1. Strength The material is resistant to deformation under stress.
1.1.2. Thermal The tendency of a material to change in volume in response to a
Expansion change in temperature.
1.1.3. Thermal Cast iron pots are used to cook food in a household because cast
Conductivity iron conducts and retains heat well.
The water is transported from the reservoir to the consumer
1.1.4. Corrosion
through PVC pipes because PVC resists corrosion and chemical
Resistance
degradation.
The ability of a material to be hammered or rolled into thin sheets
1.1.5. Malleability
without breaking.
QUESTION 2: SOIL [20 MARKS]
2.1. Explain the formation of soil (4 marks)
Soil is formed through the weathering of rocks and the decomposition of organic
materials over time. Physical weathering breaks rocks into smaller particles, while
chemical and biological processes further transform the materials. Factors like climate,
parent rock, topography, organisms, and time contribute to soil formation.
2.2. Soil Stabilisation Comparison Table (6 marks)
