Solar Designation MCQ

A roof-design on average, is designed to carry a load of …… kg/m²?

A solar water heating system installed in the southern-hemisphere, the collectors must face ……………?

SANS 10106:2014, section 5.2, refers to:

As part of the commissioning of a solar system, is it necessary that you fully explain the functioning of the system to the client?

A PIRB certificate of compliance must always be issued when a solar water heating system is installed.

The collectors of a solar water heating system installed in the northern-hemisphere must face …………….?

Can I use solder joints on copper throughout the solar installation?

In terms of SANS 1307:2014, section 4.3.5, are drain-down valves, dumping valves and anti-freeze valves acceptable methods of freeze protection in a solar system?

Do you require an intelligent controller on a close coupled thermosiphon system?

Fill in the blank space: An air release valve is installed on a ………………… solar system?

For what purpose is an inclinometer used?

SANS 10106:2014, section 5.3.2, refers to:

How could a banjo valve be connected in a solar system?

Conservatively speaking, around what percentage of your hot water bill should be saved by a properly installed solar water heating system?

In terms of signing off a solar installation certificate of compliance, who can carry out this function?

Is SANS 10106 for:

How often should the solar system be checked and maintained?

Is SANS 10252-1 for:

Is a mixing valve required in a pre-heater retrofit installation?

Once the installation is complete and functioning, the consumer must be provided with the following:

Is SANS 10254 for:

If an existing electrical geyser installation has no drip tray, may you install a pre-feed system?

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

If the only available position for the solar tank is inaccessible, may you:

How often should the glycol mixture in an Indirect solar system be replaced?

In terms of SANS 10106, a solar system must comply with which standard?

Lagging only needs to be protected against UV light and moisture ingress if:

Penetrations through the roof structure shall be positioned:

In regions that do not experience freezing, is thermal lagging required on the hot and cold reticulation?

On the non-compliance section of the COC, which is included to allow the plumber to notify the homeowner of any non-compliance’s, and if it is pertaining to a new build (on your) installation, may you;

What if an architect insists that an HWC must be installed in a cupboard that limits accessibility?

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

What should the minimum vertical distance between tank and collector be in a split thermosiphon solar system?

What is the maximum allowable flow velocity for a below ground domestic water pipe?

SANS 1307 pertains to?

What time period must be used when calculating the 50% volume fraction of the hot water heating requirement for compliance to SANS 10400: part XA2?

Should you look at abnormal hot water usage such as washing machines?

Should a solar circulation pump:

What is the maximum allowable flow velocity for an above ground domestic water pipe?

When carrying out a solar installation, pipe work must be installed in such a manner as to:

The term R-1 relates to which component utilized on a solar system?

The average rule of thumb in determining the sizing of solar water heating systems is to …………………. the existing water heaters capacity.

The base of a split thermosiphon storage cylinder should be ……………mm above the collector?

What assumptions can be made when assessing the strength of a roof?

Solar water heating collectors must be installed in accordance with:

What ratio of glycol should be used?

Stratification is when:

SANS 10106:2014, Section 5.4.5 refers to:

When a situation on-site does not allow for the standards to be complied with, should you have:

SANS 10106:2014, A1, makes specific reference to shading during which times?

SANS 10400-XA refers specifically to which standard?

SANS 10106:2014, Section 5.3.8 makes specific reference to:

When connecting solar collectors ………………………. must be used:

What does SANS 10106 say about sizing solar systems in terms of volume?

In terms of SANS 10106, 5.3.1, what needs to be carried out prior to the installation being carried out?

Should plumbers always defer to designers, engineers and architects?

SANS 10106:2014, Section 5.3.3 refers to:

What happens to hot water that is not used on any given day?

What solar system will use glycol?

When installing a pump, should you ensure:

What is one of the differences between a direct close coupled, on-roof system and a direct integral, on-roof system?

SANS 10106:2014, Section 5.3.5 makes specific reference to:

True or False: A tempering valve does not need to be installed on all solar systems

Name a draw-back of an under-sized tank in a solar system

Which of the following should form part of scheduled preventative maintenance?

True or False: A circulating pump should only be used on an indirect system

When installing a solar system, should you be referring only to SANS 10106?

Select one: Showing factors that would influence the decision to install either an indirect or a direct solar system

Which factor plays a role in an underperforming system?

What are two factors that would influence the payback period of a solar system?

Which two factors could play a role in the safety of a system?

Why are the real-world capacities of electric and solar geysers different?

Scheduled preventative maintenance should be carried out on:

True or false: A circulating pump should only be used when installing a split thermosiphon solar system

Choose which IS affected by global warming

When installing a strainer, in which position would it be installed

Can I use plastic pipes in the solar installation?

Why is there a difference in solar radiation at ground level between South Africa and Europe?

Name a factor that could cause excessive overflow from either the T&P and or PRV overflow:

Name a factor that could result in insufficient savings:

True or False: Heat transfer fluid (glycol) can only be used with an indirect solar system

Why should there be a full-bore isolating valve at the unused bottom port of a flat plate collector?

Select the most appropriate in terms of the NEGATIVES of using solar energy:

Why does pipe friction matter in the primary loop?

True or False: Isolating valves are required to be installed on the circulating pipes to and from the collectors

Choose which is NOT affected by global warming

Select an option with two correct answers: What two factors would influence the sizing calculation?

With regards to solar storage tank sizing. What if there are only 2 persons staying in a three bedroomed house?

Select the option of what a homeowner should be monitoring continuously

True or False: To save cost you can substitute a standard electric geyser with a solar heater geyser

Why are standards necessary?

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

Which of the following significantly contributes to pipe friction loss?

Why is cross bracing important?

Which section of SANS 10106:2014 refers specifically to access of components?

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

Which factor influences the total available radiation at a specific location?

Select the most appropriate in terms of the POSITIVES of using solar energy

Why is pipe sizing important?

What are the advantages of employing a direct system if appropriate?

Why is there a minimum vertical distance required between the tank and collector of a split thermosiphon system?

What are the disadvantages of using split systems, if any?

When installing a solar water heating system, must the system be balanced?

What is an advantage of employing a retrofit option?

Maintenance and system management would influence the amount of booster input required