On 04/12/2013 06:54, Dave Baker wrote:

"John Rumm" wrote in message
o.uk...

http://www.telegraph.co.uk/education...interview.html


(100%, but I did have to draw a picture for one!)

Yes, the horizon calculation I assume. The 4 digit multiplication seemed
utterly pointless other than to test a small child. I did it with pen
and paper and assume that was what they meant by no calculators rather
than having to do it in ones head which would have taken a bit longer.
It helped that as a cylinder head airflow specialist I already knew the
density of air by heart but I suppose that most people have no idea and
I presume in a real test you wouldn't be allowed to look that up so I
guess that one could stump a lot of people.

I couldn't remember the density of air, but I could remember the atomic
weights of O2 and N2; that at STP 1 mol of a gas occupies 22.4 litres;
and for an ideal gas at contant pressure, volume is proportional to the
absolute temperature (although a rough figure could be got without that
correction) and work it out that way.

The rest were trivial other than Q10 but that's such an old hoary
general knowledge question I already knew the answer and just ticked 23
without having to think about it.

I also just knew it was in that range from previous experience.

SteveW