CPCS Forward Tipping Dumper 2

Question 1

What is the primary purpose of the dumper's skip retention device (skip prop or stay)?

Accepted Answer

To hold the skip safely in the raised position during maintenance underneath

Answer

The skip retention device (prop or stay) is a mechanical support that holds the skip securely in the raised position when maintenance or inspection work is being carried out underneath. It prevents the skip from falling unexpectedly, which could crush someone working beneath it.

Question 2

When loading a forward tipping dumper, where should the load be positioned in the skip?

Accepted Answer

Evenly distributed and not exceeding the skip's rated capacity or the top of the sides

Answer

The load must be evenly distributed within the skip and not exceed the rated capacity or the top of the skip sides. Uneven loading affects stability, while overloading raises the centre of gravity and increases the risk of overturning, particularly on slopes or uneven ground.

Question 3

What should a dumper operator do when visibility is restricted while travelling on site?

Accepted Answer

Stop, get a banksman to guide movements, or find an alternative route with better visibility

Answer

When visibility is restricted (by the load, dust, weather, or site layout), the operator must stop and use a trained banksman to guide movements safely, or find an alternative route. Travelling blind is one of the most common causes of dumper-related struck-by incidents.

Question 4

What does the CPCS category A09 cover?

Accepted Answer

Forward tipping dumper

Answer

CPCS category A09 specifically covers the forward tipping dumper. Operators must hold a valid A09 card to demonstrate they have been trained and assessed as competent to operate this category of plant.

Question 5

What is the risk of driving a forward tipping dumper with the skip in the raised position?

Accepted Answer

A dangerously high centre of gravity increasing the risk of overturning

Answer

Travelling with the skip raised dramatically raises the centre of gravity, making the machine extremely unstable and prone to overturning, particularly on slopes, bumps, or when turning. The skip must always be lowered before travelling.

CPCS Theory Practice Test

CPCS Theory Practice Test

CPCS Forward Tipping Dumper 2