Question

Two bitumen samples "X" and "Y" have softening points ${45}^{o}C$ and ${60}^{o}C$, respectively. Consider the following statements:
I. Viscosity of "X" will be higher than that of "Y" at the same temperature.
II. Penetration value of "X" will be lesser than that of "Y" under the standard condition:

The CORRECT option for evaluating the above statements is

• A. I is TRUE and II is FALSE
• B. Both I and II are TRUE
• C. I is FALSE and II is TRUE
• D. Both I and II are FALSE

Answer 1

The correct option is D Both I and II are FALSE

Softening point of sample,
$X={45}^{o}C$
Softening point of sample,
$Y={60}^{o}C$
Softening point of sample X is lower than Y so at the same temperature viscosity of X will be lower than that of Y, hence penetration value of X will be more than that of 'Y'.