2014 Q8 Design of Relays suitable for environment

[PJW]

A decent stab but the question was asking about environment, i.e. vibration, climate controlled, specifically about immunity (EMI) so a choice was required and DLR is DC, IP rating, materials, i.e. fire regs. How does DLR deal with immunity is the AC/DC areas such as parallel running to the GE Main Line? Consideration of application is required too, i.e. correct relay type selection - timers, high load, numbers and types of contacts.

After looking at a drawing of a relay (BR930) recently and then compared it to my exam attempted, I've released my design does not even work!!!!!! 
Will attempt the question again in the future

Certainly I was aware that your drawing had its inaccuracies, but in many ways it wasn't too bad- it had all the main parts labelled up.  I've seen worse so don't beat yourself up over it, but yes it could be improved