LGV Multiple choice or LGV Driver CPC theory?

Hi all i should not be really commenting on this part of the forum, as im 75 driven all my working life, However i come across a app on my phone connected to the HGV theory test for new drivers, i feel sorry for you all that you must answer some of the questions they ask.

AS for a retarder i have never seen or heard of a truck used by UK haulers ever using trucks with them fitted i did 22 years in Europe when belive me retarders were needed before all the new roads in SPAIN.
it seems to me you need a lot of driver training to comprehend what some of the questions are about i can assure you i would not have passed if i was in your shoes ,it seems too much theory, get plenty of miles in i would say that is the key to pass. you learn by your mistakes, throughout your driving career.