Question

The Engineering News Record Formula, $Q_a=\frac{Wh}{6(s+0.25)},isusedforthecaseof$

Which of the above is/are correct?

• A. 1 only
• B. 2 only
• C. 3 only
• D. 1, 2 and 3

Answer 1

The correct option is B 2 only

For drop hammer

$Q_a=\frac{Wh}{6(s+2.5)}$

For single acting steam hammer

$Q_a=\frac{Wh}{(s+0.25)}$