OFTEC Oil Pipework and Supply Systems 3

Question 1

Which certificate does a registered OFTEC technician issue to confirm that a new oil heating installation complies with Building Regulations?

Accepted Answer

OFTEC Certificate CD10

Answer

Gas Safe Registration Certificate

Answer

Local Authority Building Control approval only

Answer

Manufacturer commissioning record

Question 2

What is the primary purpose of a fuel filter in an oil supply line?

Accepted Answer

To remove water and particulates from the oil before it reaches the burner pump

Answer

To regulate oil pressure to the burner nozzle

Answer

To prevent the fire valve from operating prematurely

Answer

To reduce the oil flow rate to the burner

Question 3

Where should a fuel filter be positioned in the oil supply pipework?

Accepted Answer

Between the fire valve and the burner pump inlet

Answer

Immediately downstream of the burner pump outlet

Answer

At the oil storage tank outlet only

Answer

In the return line only on two-pipe systems

Question 4

For buried oil pipework in corrosive soils, what protection is recommended?

Accepted Answer

The pipe should be coated with bitumen or encased in a protective conduit sleeve

Answer

Galvanized steel pipe provides sufficient protection without additional measures

Answer

Uncoated copper pipe provides adequate corrosion resistance in all soil types

Answer

Corrosion is not a concern for any approved pipework material when buried

Question 5

What immediate action must be taken if an oil leak is discovered in underground oil supply pipework?

Accepted Answer

Isolate the fuel supply immediately and excavate to repair or replace the damaged section

Answer

Add leak-sealing compound to the oil tank to self-seal the leak

Answer

Continue using the system but report the leak to the Environment Agency within 7 days

Answer

Fit an external protective pipe around the leaking section without excavation

Question 6

What does a de-aerator do in an oil heating supply system?

Accepted Answer

Removes entrained air from the oil before it reaches the burner pump

Answer

Filters particulates and sludge from the oil supply

Answer

Regulates the oil pressure delivered to the burner nozzle

Answer

Prevents oil from draining back to the tank when the burner shuts down

Question 7

What is the key benefit of the OFTEC competent persons registration scheme for homeowners?

Accepted Answer

It allows OFTEC-registered technicians to self-certify oil heating work as compliant with Building Regulations, without a separate Building Control application

Answer

It provides a government-backed guarantee on all parts and labour costs

Answer

It exempts oil heating systems from any requirement for annual safety inspections

Answer

It entitles homeowners to free annual servicing for the life of the appliance