List of top Mining Engineering Questions

A safety device has two independent critical components $X_1$ and $X_2$. Failure of any one or both causes an accident. Failure probabilities: $P(X_1)=0.2$, $P(X_2)=0.1$. Find the probability of an accident (rounded to two decimals).
A mining company produces iron ore and sells to another company. Royalty to be paid is on the basis of