A56 CPCS Articulated Dump Truck
Theory EXAM NEWEST 2025 ACTUAL
EXAM QUESTIONS AND CORRECT
DETAILED ANSWERS WITH
RATIONALES (VERIFIED ANSWERS)
|ALREADY GRADED A+||NEWEST
VERSION
Give TWO examples of where the Work at Height regulations may apply to dump
trucks. - Answers -✔✔ 1. Access / egress to the cab
2. Access / egress to the engine compartment
3. Access to the body
4. Body maintenance
On articulated dump trucks, steering is achieved by actuating a hydraulic ram (or rams)
which is controlled by turning the steering wheel.
a) How does the engine supply the oil flow and
b) what happens to the steering when the engine stops? - Answers -✔✔ a) The oil is
supplied by the oil pump driven by the engine
b) When the engine stops there is no steering
Where should the dump truck's Operator's Manual be kept and why? - Answers -✔✔
The Operator's Manual should be kept inside the machine in a place where the operator
has easy access.
a) Give ONE advantage and
b) TWO disadvantages of rear-mounted cameras. - Answers -✔✔ a) Allows the operator
to see directly behind the machine
b) 1. The camera has a limited view
2. The view can be blinded by the sunlight
What does the Health and Safety at Work Act require employers to do with regards
specifically to plant? - Answers -✔✔ The employer must ensure the plant is safe and
maintained.
Using the Operator's Manual, state the cold-starting procedure for the machine. -
Answers -✔✔
a) State the purpose of a retarder and
, b) the possible consequences of not using it when required. - Answers -✔✔ a) The
retarder is a device that provides a partial braking effect on steep slopes
b) If it is not used then normal brakes have to be used which can cause a loss of grip on
steep slopes leading to loss of control
If a load has to be tipped on a slope, what may happen if the load is tipped downhill and
why? - Answers -✔✔ Weight transfer can cause the machine to tip rearwards due to the
movement of the centre of gravity
The operator has to use a new type of dump truck that they are unfamiliar with. What do
Regulations (i.e. PUWER 98) and other guidance require the operator to have? -
Answers -✔✔ The operator is required to have the correct instruction, training and up-
to-date information on that particular machine
What is the meaning of this hand signal (being demonstrated by the Tester)? - Answers
-✔✔
Using the Operator's Manual, state the figure for tyres' operating pressure. - Answers -
✔✔
a) What determines the minimum distances that any part of plant and machinery has to
be kept from over head electricity lines and
b) explain why a distance should be kept. - Answers -✔✔ a) The amount of voltage that
runs through the electricity lines and the support used for the electricity lines (wooden
poles or metal poles)
b) Because the electricity can arch or jump gapsTh
How can a qualification or card benefit a plant operator? - Answers -✔✔ The operator
can prove his skills and have better prospects of employment and promotion.
Operators should lower the body fully before driving away. Give TWO possible
consequences if this is not carried out. - Answers -✔✔ 1. The machine could tip over
sideways especially on uneven ground while raised
2. The raised body could hit overhead obstacles
The rear axle units on most dump trucks pivot on the chassis. Explain the reason for
pivoting axles. - Answers -✔✔ Allows the wheels to follow the terrain on uneven ground.
What problems and hazards can soft ground cause to a loaded dump truck? - Answers -
✔✔ 1. Slows the speed of the truck
2. Makes it difficult to drive through
3. The machine can sink and get stuck
4. The machine can tip over sideways
Theory EXAM NEWEST 2025 ACTUAL
EXAM QUESTIONS AND CORRECT
DETAILED ANSWERS WITH
RATIONALES (VERIFIED ANSWERS)
|ALREADY GRADED A+||NEWEST
VERSION
Give TWO examples of where the Work at Height regulations may apply to dump
trucks. - Answers -✔✔ 1. Access / egress to the cab
2. Access / egress to the engine compartment
3. Access to the body
4. Body maintenance
On articulated dump trucks, steering is achieved by actuating a hydraulic ram (or rams)
which is controlled by turning the steering wheel.
a) How does the engine supply the oil flow and
b) what happens to the steering when the engine stops? - Answers -✔✔ a) The oil is
supplied by the oil pump driven by the engine
b) When the engine stops there is no steering
Where should the dump truck's Operator's Manual be kept and why? - Answers -✔✔
The Operator's Manual should be kept inside the machine in a place where the operator
has easy access.
a) Give ONE advantage and
b) TWO disadvantages of rear-mounted cameras. - Answers -✔✔ a) Allows the operator
to see directly behind the machine
b) 1. The camera has a limited view
2. The view can be blinded by the sunlight
What does the Health and Safety at Work Act require employers to do with regards
specifically to plant? - Answers -✔✔ The employer must ensure the plant is safe and
maintained.
Using the Operator's Manual, state the cold-starting procedure for the machine. -
Answers -✔✔
a) State the purpose of a retarder and
, b) the possible consequences of not using it when required. - Answers -✔✔ a) The
retarder is a device that provides a partial braking effect on steep slopes
b) If it is not used then normal brakes have to be used which can cause a loss of grip on
steep slopes leading to loss of control
If a load has to be tipped on a slope, what may happen if the load is tipped downhill and
why? - Answers -✔✔ Weight transfer can cause the machine to tip rearwards due to the
movement of the centre of gravity
The operator has to use a new type of dump truck that they are unfamiliar with. What do
Regulations (i.e. PUWER 98) and other guidance require the operator to have? -
Answers -✔✔ The operator is required to have the correct instruction, training and up-
to-date information on that particular machine
What is the meaning of this hand signal (being demonstrated by the Tester)? - Answers
-✔✔
Using the Operator's Manual, state the figure for tyres' operating pressure. - Answers -
✔✔
a) What determines the minimum distances that any part of plant and machinery has to
be kept from over head electricity lines and
b) explain why a distance should be kept. - Answers -✔✔ a) The amount of voltage that
runs through the electricity lines and the support used for the electricity lines (wooden
poles or metal poles)
b) Because the electricity can arch or jump gapsTh
How can a qualification or card benefit a plant operator? - Answers -✔✔ The operator
can prove his skills and have better prospects of employment and promotion.
Operators should lower the body fully before driving away. Give TWO possible
consequences if this is not carried out. - Answers -✔✔ 1. The machine could tip over
sideways especially on uneven ground while raised
2. The raised body could hit overhead obstacles
The rear axle units on most dump trucks pivot on the chassis. Explain the reason for
pivoting axles. - Answers -✔✔ Allows the wheels to follow the terrain on uneven ground.
What problems and hazards can soft ground cause to a loaded dump truck? - Answers -
✔✔ 1. Slows the speed of the truck
2. Makes it difficult to drive through
3. The machine can sink and get stuck
4. The machine can tip over sideways
