Plumbing Theory N2 — Document

November 2020 — N2 — Plumbing Theory

N2 2020 Nated Engineering

↓ Download PDF 📄 234.3 KB

Preparing document

📋 Document Analysis

🎯 100 marks ⏱️ 3h 📄 6 pages 📝 37 items found 📚 1 topics

See full analysis

Questions — A Preview of What to Expect in the Document

This section provides a quick preview of questions from the document. It may not display every question or the complete wording of each one. For the full content, including diagrams, tables and other information, view the original PDF above.

Q1— Section header —

1.1Choose ONE term form the list below for each of the following descriptions nd rite

1.1.1

1.1.10\n the ANSWER BOOK. illar type hydrant; ball valve; wet pipe; sterili

1.1.1ressure surge or wave caused when a fluid in motion is forced to stop or change direction suddenly

1.1.2aused by presence of sulphate of calcium and magnesium in water

1.1.3old ing at least a two days supply of water and provid ing sufficient

1.1.4ylindrical steel tank with spherical top and bottom and diameter of approximately 5 m to 2

1.1.5etwork of piping buried below street level at depth varying from metres to 1 metre

1.1.6Addition of chlorine to water to keep it free from harmful bacteria and suitable for human consumption

1.1.7rocess in water purification that removes bacteria and dividing clay and colloidal matter by filtering it through layers of sand

1.1.8egulates water level in flushing cisterns, storage tanks, pressure reducing tanks and drinking troughs

1.1.9ystem in which water is always present in pipes and filled up to sprinkler head

1.1.10

1.2Rearrange the gi ven water purification stages into the correct sequence in your ANSWER BOOK listing them as stages 1 8. Storage and control Sterili

Q2— Section header —

2.1Complete the following sentences by writing only the missing word or words next to the question number (2.1.1

2.1.5\n the ANSWER BOOK.

2.1.1The ... water geyser has a tray attached with water filled glass tubes along the entire length on one side.

2.1.2... is the movement of heat in direct rays from the source without heating the intervening space.

2.1.3HWC through the solar collector.

2.1.4An ... is an amount of air occurring in the plumbing piping system.

2.1.5

2.2List the function of a pressure relief valve when it is installed with a pressure control valve in a closed (unvented\ot water installation. (4\

2.3Sketch a neat, single line diagram of TWO electric geysers interconnected in a hot

2.4List THREE reasons why back syphonage should be prevented where a vacuum breaker is fitted to the cold water inlet of a geyser. (3\ [20] (11022052\20

Q3— Section header —

3.1Name SIX soil test requirements that must be completed for the ground excavation and preparation readiness, to insert a sceptic tank and

3.2Make a neat single line lon gitudinal sectional diagram of a typical septic tank su

3.3What are basic requrements of drainage installati on List THREE facts. (3\

3.4Give TWO instances where it would be specified as a requirement to install a sewage lift pump. (2\

3.5Use DIAGRAM SHEET 1 to d esign an effective and economical sewage drainage system with the aid of a single line diagram. Using the

Q4— Section header —

Q5— Section header —

5.1

5.2ass of the water including the tank when the tank is f illed with water. The tank has a mass of 130 kg when it is empty. (3\

5.3

Topics Identified

Forms of Ownership

Mark Allocation

Total100 marks

Sections20 + 20 + 35 + 15 + 10 = 100 marks

Paper information

TitleDocument

SubjectPlumbing Theory

LevelN2

Document typeQuestion paper

Year2020

MonthNovember

Pages8

Downloads1

Examination context

Decade2020s

Years ago6y

SeasonSpring (SH)

Start daySunday

Exam periodNovember 2020

Days since exam2,169

About Plumbing Theory examination preparation

This TVET examination resource can be used as part of a structured revision programme. Past papers are most useful when learners attempt questions independently, work within a realistic time limit, and review their answers afterwards.

How to use this resource for revision

A TVET past examination paper is most useful when it is treated as an active revision exercise. Try the questions yourself before checking the corresponding memorandum. Where you make an error, identify the reason — was it a knowledge gap, a calculation mistake, an interpretation issue, or an examination technique problem?

For stronger examination practice, complete the paper without unnecessary interruptions and keep track of the questions that take the most time. Afterwards, review the memorandum and separate knowledge gaps from mistakes caused by interpretation, calculation, structure, or examination technique.

understanding question requirements

applying subject knowledge

working under time constraints

checking answers

identifying revision priorities

A practical revision approach

Start by completing the resource without looking at the memorandum. Review incorrect and incomplete answers afterwards and make a short revision list based on the areas that caused difficulty.

File details

File size234.3 KB

Pages8

Archived on8 September 2026

File age45d

ContributorFreeMode

Fingerprint1085F78EF193

Questions and learner discussion

No questions or discussions have been posted yet.