Fluid Mechanics N5 — Memo

April 2021 — N5 — Fluid Mechanics

N5 2021 Nated Engineering

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1.1.1This is a property that a fluid possesses due to the ratio of the weight per unit volume of the fluid 10000,969,81 9417,6/ oiloil relativewater

1.2.29417,630010 2825,28 oil oil oil oiloil oil also

1.3.1310309,5 0,25 310309,5 309,75 309,751020010 194,6216710 0,1963,25194,62167 mean viscous

2.1

2.2.1' : 2,66667 2,66667 533,333 2,6666710004 0,04 2,122 mcsc pedal

2.2.27,41 16,6725 516,6725 83,363 mcsc mcmcscsc pedal pedal mc

2.3.10,210,06 31,8086310 0,21 34,6360610 31,80863100,5 0,5610 28,401s 34,636 foward

2.3.21,8086310 3,317 fromP PMPa [20]20

3.1.2,...' (909,81\8409,813,66 504145,233 504145,23310259,813,6 504145,233102349,9785 objectoiltotal totaltotal total totalbouyancy

3.2.31,55 2,55 3,325 98103,3251,55 615,48 FgyA FkN [20]20

Q4— Section header —

4.1.113101860 14,04 87014,04 12,215 volume fromQ time VQt mass

4.2.1250300 22 ,... : 44 5,76/ fromQQcontinuityflowprinciple vms

4.2.225030095140 33 0,3 095 5,76 ,85 407,15041027,2896410 407,15041027,2896410 379,861/

4.2.3379,86110 379,861104 0,14 24,676/ fromQAv vms

4.2.49810379,86110 3,726/ 981027,2896410 267,711/ WgQ kNs alsoWgQ [20]20

5.1.1lamina r flow each particle of a fluid flow smoothly along or adjacent to one another without interfering with other along the path or with turbulence.

5.1.2Flow is said to be unsteady when the conditions in relation to time are unsteady. T he fluid flows along a path with unparallel ayers or with turbulence or conditions constantly changing

5.3.2119,09856 0,719,62 7,968 exit fromhs [20] QUESTION20

6.1The function of a pump in a hydraulic system is to convert mechani cal energy to hydraulic energy, by means of generating a lift (by means of vacuum or negative pressure\ to the fluid on its suction side in order to deliver it.

6.2.140,8515 40,01540,0150,03 66,6666728,3333360500 sytem filterbendsvalve sytem llll fromld dddd

6.2.21010 0,03 3,53678/ 40,0153,53678 19,62 25,056 sytem fromhf andQAv

6.2.3' : 4,25103,53678 625,056 9609,8119,62 470,976 9609,81101047 ii ipump loss

6.2.440,015 3,6 3,63,53678 19,62 2,295 filter filter filter filter

Mark Allocation

Sections20 + 20 + 20 + 20 + 20 + 20 = 120 marks

Paper information

TitleMemo

SubjectFluid Mechanics

LevelN5

Document typeNated Engineering

Year2021

MonthApril

Pages11

Downloads5

Examination context

Decade2020s

Years ago5y

SeasonAutumn (SH)

Start dayThursday

Exam periodApril 2021

Days since exam2,018

About Fluid Mechanics 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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