Question:
In the context of testing bitumen, which one of the following statements is FALSE:
In the context of testing bitumen, which one of the following statements is FALSE:
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For testing bitumen, remember that softening point is a temperature property, while other tests like ductility and penetration involve mechanical measurements.
Updated On: Feb 4, 2026
- The depth of penetration of needle in the standard penetration test is measured in the units of one-tenth millimeter
- Softening point is measured using a ring and ball apparatus
- Softening point is measured in the units of time
- Ductility is measured in the units of length
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The Correct Option is C
Solution and Explanation
The softening point of bitumen is a critical property that indicates the temperature at which the bitumen becomes soft enough to flow. It is measured using the ring and ball apparatus, and it is expressed in terms of temperature, not time.
Let's analyze the given statements:
- (A) The depth of penetration of the needle in the standard penetration test is indeed measured in one-tenth millimeter, so this statement is TRUE.
- (B) The softening point is measured using a ring and ball apparatus, which is also TRUE.
- (C) The softening point is measured in temperature, not time, so this statement is FALSE.
- (D) Ductility is the ability of bitumen to stretch under a load, and it is measured in units of length, which is TRUE.
Thus, the correct answer is option (C).
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