Which of the following is NOT a recommended action to address leaks?

Tighten compression fitting nut

What causes expansion noise in hot water or central heating pipework?

The expansion of the pipes as heated water passes through

What can be used to reduce noise when cisterns refill?

Install a pressure reducing valve

Which of the following is NOT a suggested method to reduce flow noise?

Install a pressure reducing valve

What happens if the thermostat fails open?

The customer will have no hot water.

The temperature will continue to rise.

The water will become too cold.

What is a potential danger if the thermostat fails closed?

The temperature will continue to rise to dangerous levels.

The water will become too cold.

The customer will have no hot water.

What should be done if the thermostat fails?

Replace the thermostat with a new one.

What should be done to replace an immersion element?

Comply with Building Regulations Part P

What should be done to replace an immersion heater?

Comply with Building Regulations part P

Follow manufacturer's instructions

What happens if the coil fails in the system described?

The warning pipe on the F&E discharges.

The pressure from the CWSC is less than the pressure from the F&E cistern.

Water is forced into the secondary system.

What should be done if the coil fails?

Replace the cylinder with a current approved part L cylinder.

Increase the pressure from the CWSC.

Decrease the pressure from the F&E cistern.

What happens to the hot water in a single feed cylinder when there is a loss of air bubble?

The hot water will be discoloured

The hot water will be over-pressurized

What needs to be done to the secondary system in both single feed and unvented cylinders to reinstate the air bubble?

The system needs to be drained to the base of the hot water cylinder

The system needs to be pressurized

The system needs to be replaced

What is a sign that water is boiling in a heating system?

The open vent is discharging and water is dangerously hot when drawn off.

The water is lukewarm when drawn off.

There is no steam in the loft area.

The water is cold when drawn off.

What should be done if old immersion heater thermostats are found?

They should be replaced with new immersions that contain a non self-resetting thermal cut out.

They should be left as they are.

They should be replaced with the same old immersions.

They should be disconnected permanently.

What happens if a cylinder stat fails?

The water will continue to heat and be controlled by the boiler stat, which should cut out at approximately 80-85ºC.

The water will cool down immediately.

The water will be controlled by the immersion heater.

What is one reason cold water can warm up in a plumbing system?

Heat from the hot water pipe transfers to the cold water pipe.

Cold water pipes are too far from hot water pipes.

Cold water pipes are made of metal.

Cold water pipes are insulated.

What happens if the hot water cylinder overheats?

The vent pipe discharges into the CWSC.

What is a common cause of air locks in low pressure systems?

Incorrect installation of pipework

What is an indicator of air locks in a pipework system?

No flow of water or intermittent water flow

Maintenance and Inspection Quiz

Authored by George Ellison

Instructional Technology

12th Grade

Used 1+ times

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68 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What should be inspected if the flow rate is less than the required manufacturer's instructions or if a customer notices a drop in the flow rate?

Temperature settings on thermostat

Limescale blockages

Filters cleaned

All of the above

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT a potential cause of poor flow rate?

Temperature settings on thermostat

Limescale blockages

Filters cleaned

Pipe size too large

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is one of the indicators that an inspection is needed for maintenance?

Increase in temperature

Drop in flow rate

Noise from the system

Change in color of the fluid

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What can cause unbalanced pressure in manually controlled showers?

Properly balanced pressure

Debris partially blocking the feed pipework

Regular maintenance

Correct temperature settings

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT listed as an indicator for maintenance in the document?

Temperature settings on thermostat

Limescale blockages

Filters cleaned/pipework inspected

Electrical wiring issues

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the effect of debris partially blocking the feed pipework in a shower?

Increased water pressure

Decreased water temperature

Unbalanced pressure affecting flow rate and temperature

Improved water flow

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which maintenance task involves ensuring that parts move smoothly?

Temperature settings on thermostat

Limescale blockages

Filters cleaned/pipework inspected

Lubrication of parts

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Maintenance and Inspection Quiz

What should be inspected if the flow rate is less than the required manufacturer's instructions or if a customer notices a drop in the flow rate?

Which of the following is NOT a potential cause of poor flow rate?

What is one of the indicators that an inspection is needed for maintenance?

What can cause unbalanced pressure in manually controlled showers?

Which of the following is NOT listed as an indicator for maintenance in the document?

What is the effect of debris partially blocking the feed pipework in a shower?

Which maintenance task involves ensuring that parts move smoothly?

What can cause an isolation valve to pass water?

Which of the following is NOT a recommended maintenance step for a valve?

What should be done if an isolation valve has a damaged O ring?

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