Question

The penetration test of bitumen is conducted at a temperature of

• A. ${50}^{o}C$
• B. ${37}^{o}C$
• C. ${60}^{o}C$
• D. ${25}^{o}C$

Answer 1

The correct option is D ${25}^{o}C$

The temperature at which penetration test is conducted is ${25}^{o}C$