Industrial Instruments N6 — Document

November 2022 — N6 — Industrial Instruments

N6 2022 Nated Engineering

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🎯 100 marks ⏱️ 3h 📄 5 pages 📝 31 items found 📚 1 topics

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Q1— Section header —

1.1Define the following terms:

1.1.1Volume susceptibility

1.1.2

1.2Give THREE examples of broad emission sources of UV energy and ONE example of a discrete line UV energy source

1.3In process chromatography , all the operating parameters are controlled and events are on a cyclic and repetitive basis

1.3.1Draw a neat labelled basic diagram of chromatograph

1.3.2An analyser was part of the diagram of a chromatograph that you drew for

Q1— Section header —

1.3.3Name the operating parameters which must be controlled for the successful operation of the chromatograph (5\

1.4Draw a neat labelled diagram of a methanometer which uses the principle of the heat of the

Q2— Section header —

2.1Define the following terms:

2.1.1Feedback control (3\

2.1.2Multi element control (2\

2.2Draw diagram of the cascade control of a heat exchange process (6\

2.3

2.4In an air operated controlled process, after the tempe rature had been balanced at 120 C under manual control, the manual pressure regulator is changed suddenly at time zero to increase the pressure on the valve so that the valve

2.4.1Draw the reaction curve (3\

2.4.2Calculate the optim al settings for a proportional and integral controller (14\ [32]32

Q3— Section header —

3.1Name THREE types of trays found in a distillation column (3\

3.2Draw diagram of improved column feed temperature control (6\

3.3What is the function of a condenser in a distillation column (2\

3.4Define boiler load (2

3.5Explain how the following fans are used to operate a furnace or burner

3.5.1 Natural draft fans

3.5.2 Forced draft fans

3.5Induced draft fans

3.5Balanced draft fans (4 2\

3.6The water level in a steam drum is affected by a phenomenon known as 'drum swell'. Explain the cause of this and how it ffects the level of water in the steam drum (4\ [25]25

Topics Identified

Business Plan

Mark Allocation

Total100 marks

Sections28 + 32 + 25 + 15 = 100 marks

Paper information

TitleDocument

SubjectIndustrial Instruments

LevelN6

Document typeQuestion paper

Year2022

MonthNovember

Pages6

Downloads3

Examination context

Decade2020s

Years ago4y

SeasonSpring (SH)

Start dayTuesday

Exam periodNovember 2022

Days since exam1,439

About Industrial Instruments 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 size172.4 KB

Pages6

Archived on8 September 2026

File age46d

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Fingerprint55FD5185E0B8

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