Plumbing Theory N2 — Document

April 2019 — N2 — Plumbing Theory

N2 2019 Nated Engineering

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🎯 100 marks ⏱️ 3h 📄 5 pages 📝 26 items found 📚 1 topics

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Q1— Section header —

1.1Name FOUR different types of water. (4\

1.2Water originate in nature in the form of rain, hail, and snow. The d aily heat from the sun causes the water on the surface to evaporate to form clouds and when this process is repeated, it is known as a rain cycle.

1.3Why do we need to soften water? Give FOUR reasons. (4

1.4In the process of water purification, chlorination is the most important stage as the chemicals used are purely meant to kill germs which are very harmful to human s.

1.4.1

1.4.2

Q2— Section header —

2.1What is a water pressure reducing valve? (2

2.2Name FOUR operating principles of each of the following valves

2.2.2

2.3Make a neat single line diagram of TWO electrical geysers that are vertically positioned and interconnected in a hot

2.4Give TWO disadvantages of solar water heating panels. (2 [20] 1102205220

Q3— Section header —

3.1Briefly describe the term two pipe system as it is used in a drain connection. (2

3.2With the aid of a flow diagra m, illustrate the conventional sewage treatment process that will be found in sewage treatment plant. (7

3.5A plan view of a domestic house with an outbuilding is shown on DIAGRAM SHEET 1 (attached\With the aid of a single line diagr am, complete the underground drainage detail which should indicate an effective

3.5.1Provision for one ventilation pipe

3.5.2One gulley

3.5.3Access to facilitate effective cleaning

3.5.4One inspection eye Drainage details must be labeled in accordance with the standard abbreviations. NOTE: Hand the completed DIAGRAM SHEE T 1 in with your ANSWER BOOK. Ensure that your EXAMINATION NUMBER

Q4— Section header —

4.1

4.1.1 ra w the given views to scale 1: 10 and determine the true lengths of the sides shown in the front view.

4.1.2Develop the full pattern of the transition piece, to a scale 1: 10. Do NOT make any allowances for seams. [15]15

Q5— Section header —

Topics Identified

Business Plan

Mark Allocation

Total100 marks

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

Paper information

TitleDocument

SubjectPlumbing Theory

LevelN2

Document typeQuestion paper

Year2019

MonthApril

Pages8

Downloads4

Examination context

Decade2010s

Years ago7y

SeasonAutumn (SH)

Start dayMonday

Exam periodApril 2019

Days since exam2,750

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.

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File size235.1 KB

Pages8

Archived on8 September 2026

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