Nc1520 Instrumentation Technology NCV Level 3 — Memo

November 2023 — NCV Level 3 — Nc1520 Instrumentation Technology

NCV Level 3 2023 NCV Engineering

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Q1— Section header —

1.1.1True

1.1.2True

1.1.3True

1.1.4True

1.1.5

1.2Restrictor Permanent magnet Nozzle Flapper Coil Coil flexure Feedback bellows Make sure you use a transmitter that was designed to work in the pressure range of the system on which you are working.

1.424

Q2— Section header —

2.1.1The measurement is relatively independent of the distance from the heated body. The body may be either moving or stationary. Low temperature may also be measured, provided that sufficiently sensitive element is employed to measure the small

2.1.2s expensive The temperature readings may be a little inaccurate. Specific pyrometers may be used to measur different materials. Dust, smoke, fog, steam etc. will affect

2.2Check that the circuit is grounded properly Open the case of the device by unscrewing the correct parts Check that you have soldering iron and soldering materials Use the

2.3.2Most of the liquid in a thermometer is in the bulb. As the temperature of the liquid increase the liquid will expand push up into the narrow tube. As the liquid expands, the meniscus of the liquid will move to a certain mark on the scale

2.4.1he curve [36]36

Q3— Section header —

3.1.10

3.2.1

3.2.2An obstacle is placed in the pipeline where measurement is required. This obstacle causes vortices to form. If the flow increase , the number of vortices that form also increases. Sensors detect the vortices from which a flow measurement signal

3.2.445

Q4— Section header —

4.1.1(a\ hen a measurement can be taken at any time and an exact value can be read (b\ n on/off type of measurement that only checks certain conditions, such as a full or empty tank

4.1.2Hydrostatic pressure Bubbler pressure Float type Radar Ultrasonic Conductive Capacitive = (13 600/1

4.3THREE marks for the drawing THREE marks for labelling Mount the sensor in the tank so that the probes do not make contact with the wall of the tank. Do not mount the sensor near the point where the liquid is pumped

4.4.3Physical check the vibration probe and extension cable for any damage. Check the resistance of

4.5.1Electromechanical

4.5.2Fluid level

4.5.342

Mark Allocation

Sections24 + 36 + 45 + 42 = 147 marks

Paper information

TitleMemo

SubjectNc1520 Instrumentation Technology

LevelNCV Level 3

Document typeNCV Engineering

Year2023

MonthNovember

Pages8

Downloads3

Examination context

Decade2020s

Years ago3y

SeasonSpring (SH)

Start dayWednesday

Exam periodNovember 2023

Days since exam1,073

About Nc1520 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.

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File size360.9 KB

Pages8

Archived on8 September 2026

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