This is one of the screens from within the picture vocabulary test. It displays the word "airplane" and the participant responds by touching the image which they feel is most closely associated with the concept of "airplane".

As a pedantic aside related to this particular image set, "airplane" and "aeroplane" are generally considered equivalent - the former is most prevalent in American/Canadian usage and the latter most prevalent elsewhere. UK Biobank went with the American usage for this particular test as it was adapted from an American model.

This resource can be downloaded or viewed using the link: picvoc_eg.png

If you have wget available (typically on linux systems), then you can also obtain a copy using the command

 wget  -nd  biobank.ndph.ox.ac.uk/ukb/ukb/images/picvoc_eg.png