Question

The transmission of moisture from body to atmosphere depends on
A. body exertion rate
B. environmental humidity and temperature
C. clothing parameters
D. human psychology Choose the correct answer from the options given below:

• A. B, C, D only
• B. A, B, D only
• C. A, C, D only
• D. A, B, C only

Hint:

Moisture transmission is a physics problem: it needs a source (Exertion), a path (Clothing), and a destination (Environment).

Answer 1

The Correct Option is D

Concept: Moisture management (breathability) is the ability of a fabric to transport perspiration from the skin to the external environment.

Step 1: Physiological and Environmental Factors.
The rate depends on A (Body exertion rate), as heavy exercise produces more sweat. It also depends on B (Environmental conditions); high external humidity reduces the gradient required for evaporation.

Step 2: Textile Factors.
C (Clothing parameters) such as fiber type, fabric thickness, porosity, and wicking ability directly control how fast moisture moves through the material.

Step 3: Exclusion.
While D (Human psychology) might affect how "comfortable" a person feels, it does not physically control the thermodynamic transmission of moisture through the fabric layers.