Revision question · Environmental issues

What's reduced by fitting a fly sheet tightly over a tipper body?

Revision material from the imported DVSA bank includes source-checked Lanekind learning corrections. These corrections are not newly issued official examination questions, and practice does not reproduce a live test paper.

Answer options

Drag effect

Steering effort

Legal load weight

Load capacity

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Drag effectThis was the right answer

Drag is caused by wind entering the cavity of an uncovered tipper. If the cavity is covered, then the drag is reduced.

Reviewed reading for this question

Match the airflow to the body and loadReviewed guidance summary · The DfT handbook’s aerodynamic principles match the inspected roof fairing and the exact tipper/flatbed questions. Historical numerical savings are not repeated.

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