Fluids can develop

Options

A.  longitudinal strain only
B. langitudinal and shearing strain
C. longitudinal, shearing and volumetric strain
D.  volumetric strain only

Explanation

To solve the question "Fluids can develop:", we need to analyze the types of strains that fluids can experience. Here's a step-by-step solution:

### Step 1: Understanding Strain Types
Strain is defined as the deformation of a material due to applied stress. There are different types of strains:
- **Longitudinal Strain**: Change in length per unit length (typically observed in solids).
- **Shearing Strain**: Change in shape without a change in volume (also typically observed in solids).
- **Volumetric Strain**: Change in volume per unit volume (can occur in both solids and fluids).

### Step 2: Analyzing Fluids
Fluids, such as liquids and gases, do not have a fixed shape and can flow. When a force is applied to a fluid, it does not experience longitudinal or shearing strains in the same way that solids do. Instead, fluids primarily undergo changes in volume.

### Step 3: Identifying the Correct Option
Given the options:
1. Longitudinal strain only
2. Longitudinal and shearing strain
3. Longitudinal, shearing, and volumetric strain
4. Volumetric strain

Since fluids can only change their volume when subjected to stress, the correct answer is **option 4: a volumetric strain**.

### Conclusion
Thus, the correct answer to the question "Fluids can develop:" is **volumetric strain**.

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