6035 Cold water quiz 2

What type of plumbing fitting is used to make a watertight seal to an open pipe end?

• Tee

• Coupling

• Elbow

• Stop-end

What type of plumbing fitting can be used to control the water pressure supplied to a shower?

• Pressure reducing valve

• Expansion relief valve

• Double check valve

• Reduced pressure zone valve (RPZ)

The servicing details for a water softener can normally be found in:

• Building Regulations Document P

• British Standard 6700

• Guide to the Water Regulations

• Manufacturer installation instructions

A maintenance programme in which float operated valves are re-washered annually regardless of whether the valve is defective is described as:

• Planned preventative maintenance

• 'Just-in-time' maintenance

• Defect prevention maintenance

• Defect component maintenance

Which one of the following will cause the minimum of disruption when isolating the entire cold water supply to undertake a maintenance job lasting up to four hours in a food production factory?

• Try to reduce the job to the shortest time period possible

• Doing the job outside normal working hours

• Informing all staff about the maintenance work

• Using an alternative water supply

One of the main uses of the tool shown is:

• Removal of a circlip washer from a tap headgear

• Replacement of the seat in a float operated valve

• Replacement of the washer in a float operated valve

• Removal of the back-nut from a stop tap ‘jumper plate’

Which one of the following is a replacement part for a pillar tap?

• Valve piston

• Stiffener plate

• Siphon washer

• Rubber washer

There is no water flow at the cold water outlets in a property. Which one of the following is most likely to be the cause of the problem?

• A defective float operated valve in the WC cistern

• Fully blocked line strainer

• Partially blocked line strainer

• An increased water pressure at the cold water storage cistern

A defective double check valve sited inside the property that is supplying an outside hose union bib tap can be repaired by:

• Fitting a backflow preventer to the tap

• Replacing the hose union tap with one that contains a double check valve

• Replacing the double check valve

• Replacing the double check valve with a single check valve

A plumber is most likely to be required to complete a maintenance record for a cold water system when working in which one of the following types of property?

• Private house

• Food production factory

• Small shop

• Private flat