Question:

The Modulus of Rupture (MOR) test for Tiles measures

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MOR stands for Modulus of Rupture and is used to measure flexural or bending strength.
  • Hardness
  • Plasticity
  • Flexural strength
  • Abrasion resistance
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The Correct Option is C

Solution and Explanation

Concept: Modulus of Rupture is a measure of the maximum bending stress a material can withstand before breaking.

Step 1:
Tiles are brittle ceramic products.

Step 2:
Their strength is commonly tested under bending load.

Step 3:
In the MOR test, a tile sample is supported and load is applied until fracture occurs.

Step 4:
The calculated value gives flexural strength. \[ MOR = \text{Flexural strength} \]

Step 5:
Hardness, plasticity, and abrasion resistance are different properties and are tested by different methods. Therefore, MOR test measures: \[ \boxed{\text{Flexural strength}} \]
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