About Us

Ralph Pelly – CEng MIStructE MEng(Hons)

Ralph Pelly

Ralph Pelly

Ralph is a co-founder of The Structural Exam and is an specialises in timber and masonry structures, and has also worked on many projects in steel and concrete.

He is the founder and director of Giraffe Engineering, and is a guest lecturer at the University of Bath for the “Timber and Masonry Engineering” module, and also an examiner for student critique sessions. He passed his IStructE Chartered Member Examination in April 2014 on his first attempt.

Ralph studied for his Masters in Civil Engineering at the University of Bath, graduating with First Class Honours and top of the class.


Tim Lai – EUR ING CEng MIMechE MEng(Hons)

Tim Lai

Tim Lai

Tim is a co-founder of The Structural Exam, providing business administration and web support. Through Ralph and Bob's guidance, he is expecting to sit the IStructE Chartered Member examination in January 2019.

He previously worked as a researcher at Imperial College London and structural engineer for Shell in The Netherlands, specialising in offshore steel structures. He is a Chartered Engineer and a Reviewer for the Institution of Mechanical Engineers. Tim is also registered as a European Engineer (EUR ING), and the Ordem dos Engenheiros in Portugal.

Tim studied for his Masters in Civil Engineering at the University of Bath, graduating with First Class Honours. During this time he won a QUEST Scholarship with the Institution of Civil Engineers and also the Engineering Leadership Award from the Royal Academy of Engineering. Tim is a member of Mensa.


Bob Wilson – CEng FIStructE


Bob Wilson CEng FIStructE

Bob Wilson, CEng FIStructE

Now retired from industry after a long and distinguished career in structural engineering specialising in concrete technology, Bob is a former IStructE Chief Examiner, Marking Examiner and question setter for the Chartered Member and Associate Member exams.

Bob’s insight in the examination process has been invaluable to many candidates who he has mentored along the way. Prior to retiring he held Membership and Fellowships with several other professional engineering institutions. Bob provides the Quality Assurance behind the structural engineering content of The Structural Exam.