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Question 1 of 16

1. Question

When a hot water cylinder heats up, what happens to the water inside?

It expands
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It contracts
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Nothing
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It turns to steam
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Question 2 of 16

2. Question

What is water’s boiling point at sea level?

100°C
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120°C
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140°C
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The point at which all pressure is released from the outside
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Question 3 of 16

3. Question

What would cause a geyser to explode?

As the water heats up beyond the boiling temperature at atmospheric pressure
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When the water heats up beyond the boiling point at atmospheric pressure and pressure is unable to be released
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As soon as the tank is punctured
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Any leak will cause it to explode
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Question 4 of 16

4. Question

Is steam compressable?

Yes
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No
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Sometimes, at high temperature
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Sometimes, at low temperature
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Question 5 of 16

5. Question

What are the effects of thermal expansion in a normal installation?

The geyser swells in size
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The TP valve discharges the expanded water
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The expansion relief valve discharges the expanded water
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The heat pump or solar unit discharges the excess water
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Question 6 of 16

6. Question

True or False: A retrofitted installation needs only to satisfy SANS 10400-XA2

TRUE
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FALSE
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Question 7 of 16

7. Question

What type of lagging must be used on the installation?

R0.8 rated lagging
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Ziplock lagging
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R1 rated lagging
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You don’t have to use lagging
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Question 8 of 16

8. Question

Can the lagging be split?

Yes, as long as you use a mitre box
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Yes, as long as it isn't throughout, and as long as the split pieces are glued and/or duct taped
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You don't have to use lagging
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No, split lagging has total heat loss
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Question 9 of 16

9. Question

At what condition is it unfavorable for the development of the bacterium Legionella?

Water Temp below 20°C
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Water Temp above 40°C
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Water Temp above 55°C
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None of the above
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Question 10 of 16

10. Question

Water stratification occurs when hot and cold water forms layers which act as a __________?

Barrier
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Expansion
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Pressure
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Blockade
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Question 11 of 16

11. Question

A licensed plumber who signs off work done on behalf of another contractor is _____.

Permitted without condition
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Permitted as long as the work is inspected/ supervised by the Licenced plumber and found to be compliant
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Not permitted even if the work is inspected/ supervised by the Licenced plumber and found to be compliant
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Never permitted
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Question 12 of 16

12. Question

Manufacturers specifications supersede the compulsory standard

No, manufacturers specifications cannot supersede the Compulsory standard
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Yes, if approved by the building inspector
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Yes, as this will affect the Guarantee
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None of the above
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Question 13 of 16

13. Question

Select which of these statements are correct?

I may issue a Plumbing Certificate on any plumbing Job
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I may issue a Plumbing Certificate on work adequately supervised or undertaken by myself
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I may issue a Plumbing Certificate on work done by anther plumber that I know
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I may issue a Plumbing Certificate on work undertaken by employees unsupervised
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Question 14 of 16

14. Question

A By-law is a law that is applied so as to by-pass a plumbing regulation/law that one is not able to apply?

True
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False
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Question 15 of 16

15. Question

SANS 198 makes reference to which components utilized on a hot water installation?

Pipes and fittings
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Control valves and safety valves
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Electrical
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Drip Trays
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Question 16 of 16

16. Question

SANS 10400; A18 makes specific reference as to who can

Carry out plumbing inspections
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Carry out plumbing work
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Carry out solar installations
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Carry out Heat Pump installations
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