CPCS Forward Tipping Dumper

Question 1

What is the most common cause of fatal accidents involving forward tipping dumpers on UK construction sites?

Accepted Answer

Overturning

Answer

Engine fires

Answer

Brake failure on flat ground

Answer

Electrical short circuits

Question 2

What must a forward tipping dumper be fitted with to protect the operator in the event of a rollover?

Accepted Answer

A Roll Over Protection Structure (ROPS) and a seatbelt

Answer

An ejector seat

Answer

Air conditioning

Answer

A fire suppression system only

Question 3

When travelling a loaded forward tipping dumper downhill, what is the correct procedure?

Accepted Answer

Travel in reverse so the load is uphill, in a low gear

Answer

Drive forwards downhill at normal speed

Answer

Tip half the load before descending

Answer

Freewheel in neutral to save fuel

Question 4

What should an operator do before tipping a load at a spoil heap or trench edge?

Accepted Answer

Ensure stop blocks are in place and approach cautiously at a safe distance from the edge

Answer

Drive at speed to the edge to save time

Answer

Tip the load while still moving

Answer

Flash the headlights to warn others

Question 5

What is the safe maximum gradient on which a forward tipping dumper should typically operate?

Accepted Answer

As specified by the manufacturer, typically not exceeding 1 in 6 (approximately 16%)

Answer

Any gradient as they are designed for all terrain

Answer

1 in 1 (45 degrees)

Answer

Only completely flat ground

Question 6

What action must an operator take before leaving a forward tipping dumper unattended?

Accepted Answer

Lower the skip, apply the parking brake, switch off the engine, and remove the key

Answer

Leave the engine running for quick restart

Answer

Leave it in gear with the skip raised

Answer

Park on a slope pointing downhill