Question

Vee-bee time for low workability as per IS standard is ____

• A. 2 - 5 secs
• B. 5 - 10 secs
• C. 10 - 15 secs
• D. 15 - 20 secs

Answer 1

The correct option is B 5 - 10 secs

Vee-bee time for various workability as per IS standard is-

$\begin{array}{cc}\text{Extremely low}& >20secs\\ \text{Very low}& 12-20secs\\ \text{Low}& 6-12secs\\ \text{Medium}& 3-6secs\\ \text{High}& 0-3secs\end{array}$