Instrumentation Technology NCV Level 3 — Memo

November 2022 — NCV Level 3 — Instrumentation Technology

NCV Level 3 2022 NCV Engineering

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Q1— Section header —

1.1Slow reaction time Limited range of transmission ess reliability ess accuracy, especially in long signal lines TWO marks for drawing

1.3.1True

1.3.2False

1.3.3True

1.3.4True

1.3.5

1.4Silicone oil Silicon diaphragm Electrodes Pressure connections Circuit board [25] QUESTIO25

2.1.2

2.1.3(3 (9\

2.2Most of the liquid in thermometer is in its bulb. As its temperature increases, As the liquids expands, the meniscus of the liquid move to a certain mark on the scale.

2.3A pyrometer is e asy to operate an measure extreme temperatures from safe distance Pyrometers a re available in mounted and handheld versions

Q3— Section header —

3.1SIX arks for the correct drawing TWO mark for the output voltage TWO marks for

3.2ADVANTAGES DISADVANTAGES

3.3The purpose of zero checking is to calibrate the lower end values that the device will measure on the meter. During the check, the pipe section where the meter is situated should be full of liquid or gas

3.4.1They are use d to monitor the flow rate of liquids through a surface open to the atmosphere. This makes it possible to easily spot the flooding of rivers and malfunctioning of system. since the liquid is exposed to the

3.4.4Flumes Tracer method Verify that the crest is horizontally and vertically level. Verify that the crest is at least 2 Hmax above the maximum downstream water level. Clean the crest of any debris, ragging, vegetative growth,

3.5.1Transmitter LCD screen Keypad The amount of fluid that flows in and out of the container is weighed and compared to the reading that the meter displays. (3\ [45]45

Q4— Section header —

4.1.1Length = 39,3707

78.741 inches (2\

4.1.2Length =

30.48366 (2\

4.1.3

4.2

4.3Bubbler pressure Float type Radar Ultrasonic Conductive Vibration Capacitive Dipstick

4.6SEVEN marks for correct drawing ONE mark for each label. (10\

4.7The displacer may be hanging at the wrong height. The s pring might be damaged (overstretching\. Whether the conditions such as the pressure and temperature inside the vessel, are the same as they were when

Topics Identified

Business Plan

Mark Allocation

Sections25 + 35 + 45 + 45 = 150 marks

Paper information

TitleMemo

SubjectInstrumentation Technology

LevelNCV Level 3

Document typeNCV Engineering

Year2022

MonthNovember

Pages8

Downloads2

Examination context

Decade2020s

Years ago4y

SeasonSpring (SH)

Start dayTuesday

Exam periodNovember 2022

Days since exam1,440

About Instrumentation Technology 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 size462.1 KB

Pages8

Archived on8 September 2026

File age46d

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