Forward Tipping Dumper CPCS/NPORS Test: What to Expect on the Day

Forward Tipping Dumper: What to Expect on Your Test

The forward tipping dumper is one of the busiest machines on any construction site, and the CPCS A09 test is designed to prove you can move materials around safely without putting yourself, the ground crew or the machine at risk. If you have got a test date booked, this guide walks you through the practical exercises you will be asked to complete, in roughly the order many candidates meet them, along with the reasoning behind each one.

Get the principles right and the individual exercises look after themselves. As the trainer in the video puts it:

“Here’s what to expect on your forward tipping dumper test — this is in no particular order.”

That last point matters. Your assessor may shuffle the running order, so understand why you are doing each task rather than simply memorising a sequence.

Pre-Start Running Checks

Every test begins with pre-start and running checks. Before you turn a wheel you are expected to walk the machine, check fluid levels, tyres, lights, mirrors, the skip and the FOPS/ROPS structure, and then carry out running checks such as brakes, steering and the tipping mechanism once the engine is on.

These checks are not a box-ticking exercise — they are a legal duty. Under PUWER (Provision and Use of Work Equipment Regulations 1998) you must ensure the equipment is in a safe condition before use, and the Health and Safety at Work Act 1974 places a general duty on you to take reasonable care. The same discipline applies across every earth moving machine; if you want to see how thorough a pre-start routine should look, our guide on how to do 360 excavator pre-start checks covers the same principles in detail.

The Chicane and Restrictions

Next up is manoeuvring. You will drive a chicane — a full left-hand and right-hand turn — through a restriction, both forwards and in reverse.

“Remember to go over the inside.”

That single tip is the difference between a clean run and clipping a cone. On a forward tipping dumper the pivot steers from the middle, so cutting the inside of each turn keeps the wide rear end away from the restriction markers. Take it steady, use your mirrors, and treat every reverse manoeuvre as if there were a person or an obstruction just out of sight.

Working on Inclines

Inclines are where a lot of candidates lose marks, so understand the logic. The golden rule is to keep the weight uphill to maintain traction and stability — but which end is heaviest changes depending on your load.

• Empty skip: the rear axle is the heavy end, so reverse up the hill and drive down, in both directions.
• Loaded skip: the skip becomes the heavy end, so drive up the hill and reverse down.

Always refer to the operator’s manual, because guidance differs by machine type. You will also perform a hill start in both directions:

“Hill start, handbrake, neutral — you want to avoid the dumper from moving in the wrong direction.”

A tidy hill start means handbrake on, neutral selected, then balancing the controls so the machine pulls away without rolling back. A useful habit from the video: before you reach the slope, while you are still on level ground, drop into a lower gear so you can control your speed on the descent rather than fighting it halfway down.

Being Loaded Safely

At some point the excavator or loader operator will load your skip, and this is as much a test of your judgement as your driving. Position the machine on firm, level ground where the loading operator directs you, then:

“Make sure you get off the dumper when being loaded — stand clear out the radius of the machine.”

Dismount using three points of contact and stand well clear of the loading machine’s slewing radius until the skip is full. Once loaded, get back on, and before you set off:

“Make sure you look around before setting off.”

A full 360-degree look around is non-negotiable — pedestrians and other plant appear quickly on a live site. If you also operate the machine doing the loading, our 360 excavator CPCS test walk-through explains the same job from the loading operator’s seat.

Tipping Into a Trench

Tipping into a trench brings safe positioning and communication together. Before you tip, check the edge of the trench is firm and level, and confirm there is nobody working in it. A bund (or stop-block) is placed at the edge, and you must pull up to it, apply the handbrake and select neutral before raising the skip.

Throughout loading and tipping you will be expected to respond to instructions — hand signals, the bucket, or the horn — exactly as you would on site. This constant communication is part of the site safety culture that the CDM Regulations (Construction Design and Management) are built around: everyone on site sharing responsibility for a safe system of work.

Tipping Onto a Stockpile

The final discharge exercise usually involves tipping onto a stockpile. Even where the ground looks a little sloppy, provided it is firm you pull up, apply the handbrake, select neutral and raise the skip. Watch for material sticking in the skip:

“If you notice there’s still some material in the skip… don’t shake the skip, just reverse back.”

Never bounce or shake the skip to clear it — that is a classic fail. Instead, lower the skip, reverse back a short distance and re-tip. Once empty, lower the skip fully before travelling on.

Cards, Categories and Renewal

The A09 forward tipping dumper sits within the CPCS Earth Moving family. Most operators start on a Red Trained Operator card, then progress to a Blue Competent Operator card once they have logged on-site experience and completed the NVQ. Whichever card you hold, it will eventually need renewing — and the theory knowledge behind these exercises is exactly what the renewal test probes. If your card is due, read our guide on understanding the CPCS renewal process step by step so nothing catches you out.

How CPCS CPD Mastery Fits Into This

Practical skill gets you through the exercises, but the theory test and your CPD renewal demand solid underpinning knowledge — and that is where the CPCS CPD Mastery app comes in. It gives you over 4,000 practice questions across 43 plant categories, including a dedicated bank for the forward tipping dumper, so you can drill the exact safe working practices covered above.

You also get:

• 5 plant calculators for load, gradient and capacity checks
• 8 quick reference guides covering legislation, safe systems of work and machine-specific procedures
• Full mock tests that mirror the real touch-screen format
• Detailed explanations for every question, so you understand the why, not just the answer

Whether you are sitting your A09 for the first time or renewing an existing card, download CPCS CPD Mastery and turn on-site know-how into test-day confidence.