Industrial Instruments N5 — Memo

August 2021 — N5 — Industrial Instruments

N5 2021 Nated Engineering

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Q1— Section header —

1.77

Q2— Section header —

2.1Pitot tube (1\

2.1.1Impact ( igh pressure connection Static ( ow pressure connection\ Packing nut Cooperation cock

2.1.2When the velocity of fluid starts diminishing 2,21(

2.21= V

0.0141 =2,827 -3 = 4,988m/s

2.4.1Advantages Low costs It can be constructed on location where being used It is not easily amaged Disadvantages Can only be used in open channel measurement

Q3— Section header —

3.1(5\

3.2Since the velocity gradient may be accurately determined, this sensor is equally applicable to materials having Newto nian Newtonian flow properties

3.3(1 mark for each label\ The sensing element consists of a thin walled, hollow metal socket wrapped over the tape filled with salt crystal Two wires are wrapped over the tape and connected to a regulated,

Q4— Section header —

4.1(6\

4.2flow of low pressure assembly may consists of sealed housing in which the electrodes are mounted, with their lower ends into a flow through body with a bowl [16] TOTAL SECTION C:16

Q5— Section header —

5.14 marks for the diagram the measured value begins to increase, it causes the flapper to move towards the nozzle.

5.3Proportional and integral control Proportional and derivative control Propor tional, integral and derivative control [25] TOTAL25

Mark Allocation

Sections7 + 28 + 24 + 16 + 25 = 100 marks

Paper information

TitleMemo

SubjectIndustrial Instruments

LevelN5

Document typeNated Engineering

Year2021

MonthAugust

Pages7

Downloads1

Examination context

Decade2020s

Years ago5y

SeasonWinter (SH)

Start daySunday

Exam periodAugust 2021

Days since exam1,896

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.

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File size899.6 KB

Pages7

Archived on8 September 2026

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