Which of the following statement(s) is/are correct? i. Higher Vee-Bee time shows lower workability ii. Higher slump shows higher workability iii. Higher compacting factor shows higher workability
- AOnly (i)
- B(i) and (ii)
- C(ii) and (iii)
- D(i), (ii) and (iii)Correct
Solution
Concept
Workability measures
Step-by-step solution
1. Slump and compacting factor increase with workability. 2. Vee-Bee time decreases with workability, so a higher time means a lower workability. 3. All three statements are correct.
Explanation
All three tests are consistent with this.
Why the other options are wrong
Other options omit a correct statement.
Shortcut
Slump ↑ CF ↑ workability ↑; VB time ↑ workability ↓.
Correct answer: D) (i), (ii) and (iii)