Recent content by Tromso80

Hi there, How are you? Just wondered the safety engineering - fault tree. How did you get on with this question as i'm a little stuck. How did your HND go?

Hi there, Safety Engineering question 3 - just wondered how you got on with this question as I'm unsure about it?

Hi David, did you find the answer for this?

Hi Jason, Just wondered what your maths is behind this?

Hi Jason-Li, How did you manage to calculate the graph for question 5(b)? I'm struggling to see how we accurately determine the graph?

Ah ok, thanks. I think I have the formula correct, but it was the number that has been used that has confused me. If you use: t = -5 ln(4/10) you get: t = 4.58 to get 2.55 its actually: t = -5 ln(6/10) Which makes sense when putting into a graph. Unless I missed something?

Hi there, I'm also stuck on this one, can't seem to find out how we get 2.55? so I'm clearly transposing the formula wrong? any help?