The following PDF documents contain the answers to the exercises within the pages of HIP Magazine.

HIP Magazine – Autumn Issue 2017 – Answer Sheets

HIP Magazine – Summer Issue 2017 – Answer Sheets

HIP Magazine – Winter Issue 2017 – Answer Sheets

HIP Magazine – Autumn Issue 2016 – Answer sheets

HIP Magazine – Summer Issue 2016 – Answer Sheets

HIP Magazine – Autumn Issue 2015 – Answer Sheets

HIP Magazine – Winter Issue 2016 – Answer Sheets

And see here the answers to the HIP Book 2016/17 ‘Test your knowledge of circulator pumps’ on page 44: test-your-knowledge-of-circulator-pumps