MET question
Hello,
I was wondering if someone could oblige and clear up a MET question I keep getting on PPLquiz, I have still not worked out how they get the answer.
"Given a surface temperature of 21C and a dew point of 7C what height would you expect the cloudbase to be?"
The way I have tried to work it out as follows.
DALR 3C/1000'
To cool to 7C from 21C will take 4600'
the answer they are giving is 5500', where am I going wrong?
Many thanks if you reply.