Engineering Science N4 — Memo

August 2019 — N4 — Engineering Science

N4 2019 Nated Engineering

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Q1— Section header —

1.1.1At a co nstant temperature the pressure of the given mass of an ideal gas is inversely proportional to its volume. or Pressure volume

1.1.2For every action there is equal and opposite reaction. ump ing a small rowing boat into the water push es the diver forward towards the w ater. The same forces used to push

1.2.1um of all moment to t he left or right of the fulcrum (1\

1.2.2Property of material that allows the object to return to its original form when loa d causing strain is removed (2\

1.2.3ate of angular velocity measured in rad/s (1\

1.3

1.4

1.5Air or gas type accumulator Spring accumulator [16]16

Q2— Section header —

2.1/200 /112 EN 4590 Babbab cos 22 135\200\112(2200112 /211,290

2.2/120 WN PQ /307,234 NW 671,33 CabbaC cos 22

2.3mS smU /420 st CostuS .. .. tu \6(/420

Q3— Section header —

3.1.2

3.2.1(2 [8] 671.33 PQ8

Q4— Section header —

4.12001 mS /120 /60 Nf /311,0 aSuv 22 uv

4.1.2Braking force \( uB fff uaB fff \2001(/311.,0 Nf 2,373

4.1.3atuv uv /888,13 /333,3/667,16 sm smsm

4.1.4\/667,16\2001( sm 333,166673 (2\ [9]9

Q5— Section header —

5.1.1\.(\(. cFacSF \2(193\3(20\7( mNmNmB 429,47 \.(\(. cFacSF \7(\5(196\10(20

5.1.2(2\ 78,8 N 47,328 N

5.1.3N\(3 N(3 m\(0 5\3\ 2 Nm 0./6,19\571,168(20 xmNN mN /6,19

Q6— Section header —

6.1Nf eff

6.1.1%93 MAf \93\18.(210

73.38fD \11,0( \73,38.(\29,0( 19,269 (5\

6.1.2n , %93 \41,0.( \29,0( 027081314.0 aS VV 027081314.0 029119692.0

6.2042,0 as VV since efficiency s 100% 042,0 nS .. 042,0 1\.(\21,0(

6.2.2\.( lh SfW \213,1.(5007 mN 568,9094 (2\

6.3248,250 md kPa \20( 44 da VPW haV 096,2

Q7— Section header —

7.122,49 310,211 GPa % Extension 100. og ll Extension (3\

7.1.2rea reduction 100. go reduction aa area 100. \( 22

7.21181,0 GPa Stress 1,17904931

7.2.2Strain 1181,0 10204,1 13

7.2.310204.1

1.17904931 4871205.1 GPa 712.148 (3 (6\ [12]12

Q8— Section header —

8.1

8.1.2Side extension \6.0\2.0\5.0( mmmV TVV ..3 KK 0011655,0 (2\

8.2208.0 Ct Ct kPa 12 VT mK \208,0.(279 191,0

8.2.222 11 .. PV PV

2.1121 VT VTP \089,0.(303 \208,0\279.(185 mK mK kPa kPa

8.312

Mark Allocation

Sections16 + 12 + 8 + 9 + 15 + 16 + 12 + 12 = 100 marks

Key Information

Contact Number0 029119692

Paper information

TitleMemo

SubjectEngineering Science

LevelN4

Document typeNated Engineering

Year2019

MonthAugust

Pages14

Downloads4

Examination context

Decade2010s

Years ago7y

SeasonWinter (SH)

Start dayThursday

Exam periodAugust 2019

Days since exam2,626

About Engineering Science examination preparation

Engineering Science combines physics principles with engineering applications. The examination covers mechanics, thermodynamics, electricity, and materials science at the relevant N-level.

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.

applying physics principles

selecting appropriate formulae

performing calculations with units

interpreting engineering scenarios

explaining scientific reasoning

A practical revision approach

Create a formula sheet organised by topic. The memorandum rewards correct formula identification, proper substitution, and accurate unit handling — always write the formula before substituting values.

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File size430.1 KB

Pages14

Archived on8 September 2026

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