The correct answer is: A. Higher Vee-Bee time shows lower workability.
Vee-Bee time is a test used to measure the consistency of concrete. It is a measure of how long it takes for a concrete sample to flow through a standardized orifice. A higher Vee-Bee time indicates a more viscous concrete, which is less workable.
Slump is a test used to measure the workability of concrete. It is a measure of how much a concrete sample spreads out when it is placed in a mold and then released. A higher slump indicates a more workable concrete.
Compacting factor is a test used to measure the workability of concrete. It is a measure of how much a concrete sample is compacted when it is placed in a mold and then subjected to a standard compaction effort. A higher compacting factor indicates a more workable concrete.
Therefore, the statement “Higher Vee-Bee time shows lower workability” is incorrect.