Plant Operation Theory N1 — Document

April 2021 — N1 — Plant Operation Theory

N1 2021 Nated Engineering

↓ Download PDF 📄 204.4 KB

Preparing document

📋 Document Analysis

🎯 100 marks ⏱️ 3h 📄 5 pages 📝 29 items found

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 —

1.1Indicate whether the following statement are TRUE or FALSE by writing only 'True' or 'False' next to the question number (1.1.1

1.1.5\in the ANSWER BOOK.

1.1.5The nucleus consist of positively charged protons and neutral neutrons Element in

1.2What is the alency number of eac of the following elements?

1.2.4

1.3Show the formation of a salt substance with the aid of a reaction. (6\

1.4Determine the molecular mass of agnesium bicarbonate Mg(HCO Show all calculations.

Q2— Section header —

2.2Calculate the total pressure exceeded by siphon if the water supply has density of 481,3 kg/m

2.3Make a neat level sketch of glo e valve. (7\

2.4Name TWO types of valves. (2\ [20] 1104000120

Q3— Section header —

3.1State FOUR factors that the power/energy supply to a pump system depends on. (4\

3.2

3.3Draw a fully labelled sectional view of a turbine pump. (6\

3.4Explain the term vacuum and name the type of gauge with which it can be measured. (2\ [20]20

Q4— Section header —

4.1Give FOUR reasons why water for industrial use is purified. (4\

4.2Define each of the following terms:

4.2.4Temporary water hardness Permanent water hardness Softening Purification

4.3Which process variable affect the rate of evaporation? (2\

4.4Draw a graph to indicate how the vapour pressure of a mixture of the liquids ethane and ethylene affects valves when the mixture varies. (4\

4.5efine the term volatile liquid. (2\ [20] 1104000120

Q5— Section header —

5.1Explain with the aid of a sketch the operating principle of foam

5.2List THREE components required to cause fire. (3\

5.3A cylindrical container with domed shaped ends is 40% full. The diameter of the cylinder is 4 and the length is 6 m.

5.4Name FOUR types of material to be burned in a class D fire (4\ [20] TOTAL: 100 1104000120

Mark Allocation

Total100 marks

Sections20 + 20 + 20 + 20 + 20 = 100 marks

Paper information

TitleDocument

SubjectPlant Operation Theory

LevelN1

Document typeQuestion paper

Year2021

MonthApril

Pages6

Downloads2

Examination context

Decade2020s

Years ago5y

SeasonAutumn (SH)

Start dayThursday

Exam periodApril 2021

Days since exam2,020

About Plant Operation 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 size204.4 KB

Pages6

Archived on8 September 2026

File age48d

ContributorFreeMode

Fingerprint0CAAD4AF96BE

Questions and learner discussion

No questions or discussions have been posted yet.