6035 Cold water Quiz 1

When installing a new indirect cold water system, which of the following should happen, according to the Water Regulations?

• One tap (normally kitchen sink) drawn directly from the supply pipe

• One tap (normally kitchen sink) should have a dedicated distribution pipe from the storage cistern

• Mixer taps will require double check valves

• Mixer taps should never be installed due to the pressure differences

According to British Standards and the Water Regulations, a drain off valve should be installed:

• At every draw off point

• At every high point in the system

• At every low point in the system

• Above the cold water storage cistern

Pin holing in copper pipework is commonly caused by:

• Hard water

• Acidic water

• Alkaline water

• Pure water

While installing pipework in a property, you are called off site to another job. What would be the correct course of action with any open-ended pipework?

• Place a warning label on every open end

• Cap off with a push fit fitting

• Warn the customer not to interfere with any pipework

• Be as quick as you can to return

One of the major problems when leaving a dead leg in a cold water pipe is:

• Electrolytic corrosion

• Pitting of pipework

• Reduction in water flow

• Possible bacterial growth

What is the purpose of using WRAS approved fittings in cold water pipework installations?

• To meet legal requirements

• To ensure durability

• To avoid contamination

• All of the above

After verifying that a new cold water installation is sound, what is the next step?

• Prepare the benchmark certificate

• Hand over to the customer

• Flush the pipework and then hand over to the customer

• Conduct a visual inspection with the customer

What is the most cost-effective method to repair a stop valve with a jammed head gear?

• Replace the entire valve

• Replace the head gear only

• Install a new stop valve upstream

• Repack the glands around the spindle

What is the correct procedure when decommissioning a system?

• Turn off the water and drain the system immediately

• Inform the customer and then drain the system

• Use a pump to drain the system quickly

• Drain the system and then inform the customer

Identify the item shown in the image.

• Fullway gate valve

• Drain off valve

• Stop valve

• Spherical ball valve