Bill Wright wrote:

On 25/05/2017 22:08, Tim+ wrote:
Bill Wright Wrote in message:
On 25/05/2017 19:16, misterroy wrote: found this test lurking in the
filing cabinet at work, some of the questions might need a bit more
context.
https://drive.google.com/file/d/0B_U...0U/view?usp=sh
aring Is the gate question a trick? H has the brace the wrong way
round.

Bill


Nope. A piece of wood like that will work in tension or
compression. If you were to use a diagonal wire it would only
work one way.

Tim

It isn't the wood, it's the joints. The brace is effectively wedged
between the rails. If it's the wrong way round the joints will pull out.
This is utterly basic.

Bill
Agreed, but until the joints do pull out it is going to do better than
the unbraced ones. They didn't ask if they were sensible designs!


--

Roger Hayter