Engine-bay

The "Show Me / Tell Me" safety questions in your test include some about vital fluids under the bonnet.  See 港版 (Cantonese) version.

A driver is responsible for having enough  (1)  oil (if the car uses fossil-fuel),  (2)  coolant,  (3)  brake fluid,  (4)  windscreen fluid.

The coolant (expansion bottle) and brake fluid (reservoir) have MAX / MIN marks on the side.  To check the level of any oil, use the dipstick.
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The bonnet release lever is by the front passenger door hinge.