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Test Quiz 2

Test Quiz 2

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Question 1 of 13

1. Question

Unless otherwise stated by the manufacturer, the pipe diameters of all the loops between the collectors and storage containers throughout its length shall be a minimum of;

15mm Ø
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22mm Ø
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28mm Ø
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Whatever supply diameter is available
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Question 2 of 13

2. Question

Must I always use 22mm pipes for the primary loop?

Yes, the standards require it
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Yes, unless it is a pumped system
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No, 15mm is fine
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Not necessarily, the manufacturer of the SANS 1307 approved system may allow a different size
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Question 3 of 13

3. Question

You may install a female Banjo valve into a female port by using a brass nipple

TRUE
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FALSE
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Question 4 of 13

4. Question

What are the disadvantages of using split systems?

They do not last as long
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They are more expensive
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They are more complex
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They require more regular maintenance
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The tank on the roof looks ugly
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Question 5 of 13

5. Question

In the diagram, identify the two incorrect positions for a pump to be installed on a pumped solar system.

A + B
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B + C
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A + C
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Question 6 of 13

6. Question

Yimiphi kule mithetho elandelayo efuna ukuthi izindinganiso zamapayipi kufanele zilandelwe?

Umthetho Wezinsizakalo Zamanzi
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Imithetho yokwakha
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Imithethonqubo Yezinto Zokucindezela
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Umthetho Wokuvikelwa Komthengi
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Konke okungenhla
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Question 7 of 13

7. Question

Yiziphi izinhlobo zamazinga akhona?

Amazinga achaza izidingo zomkhiqizo
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Amazinga achaza izidingo zokufaka
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Amazinga eSistimu
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Konke okungenhla
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Akukho kulokhu okungenhla
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Question 8 of 13

8. Question

Yiliphi izinga elilawula ukufakwa KWEZIMISO ZAMANZI?

ISAN 10252-1
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I-SANS 10252-2
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ISAN 10254
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ISAN 10106
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I-SANS 1352
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Question 9 of 13

9. Question

When a solar system is installed in the Northern hemisphere, which direction must the solar collector face?

North
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South
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East
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West
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Question 10 of 13

10. Question

What is the best way of covering all the joints with lagging?

By bending the lagging
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Stop short of the joints and leave them exposed
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By mitring the lagging and taping as necessary
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Cutting pieces and sticking together
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Question 11 of 13

11. Question

When strengthening the bottom chord of a truss, what type of nailing/fastening pattern should be used?

At least 150 mm nails/fasteners must be used
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Nails/fasteners to be at 150 mm centres
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Nails/ fasteners must be 150 mm long
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Nails/ fasteners to staggered and at 150 mm centres
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Question 12 of 13

12. Question

Where should you place an air-release valve on a direct split pumped system?

Anywhere on the flow line
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Anywhere on the return line
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In place of the hot vacuum breaker
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In the place of the cold vacuum breaker
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At the highest point of the system, the upper outlet
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Question 13 of 13

13. Question

What difference will it make if the vacuum is lost in a ETC tube?

The system will leak
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The system will stagnate
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The system will overheat
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The tube will lose heat
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The tube will fall out
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