engineering leaving cert

haywire

hey anyone av any suggestions on wants coming up

luke999

Just do the past papers, questions repeat themselves all the time. And find the special topic, u need to know that. any wen ya get it give it to me too! ;-)

devinejay

Know the last four exams and marking schemes well, you'll do fine.

haywire

ye cool luke its photovolatic cells or sumptin its not that bad

SRFC90

What topics/chapters are each question based on??

Q1 - ??
Q2 - ??
etc

Thanks:)

luke999

im not sure, Q5 is welding and Q6 is plastics, thats all i know. You can buy a book in ur local print shop with all the answers from past papers.

anyone know where the special topic can be found?

turgon

Q1 (a) - General questions. Designed so people wont simply zone in on the individual topics and ignore the rest.
Q1 (b) - Special Topic: Photo cells. If anyone has the pre question for this could they post it? My teacher never gave us the answer paper back and we hadn't it done then.
Q2 - Testing inc stress-strain diagram
Q3 - Heat treatment and Iron-Carbon Equilibrium diagram
Q4 -Crystal defects, other equilibrium diagrams, and allotropy
Q5 - Welding
Q6 - Polymers, formation and process
Q7 - Machines: Lathe, Milling and Shaping
Q8 - Mechanisms and other random crap. Not as predictable as ALL the others.

turgon

luke999 wrote: »

anyone know where the special topic can be found?

www.howstuffworks.com. Great article there.

SRFC90

turgon wrote: »

Q1 (a) - General questions. Designed so people wont simply zone in on the individual topics and ignore the rest.
Q1 (b) - Special Topic: Photo cells. If anyone has the pre question for this could they post it? My teacher never gave us the answer paper back and we hadn't it done then.
Q2 - Testing inc stress-strain diagram
Q3 - Heat treatment and Iron-Carbon Equilibrium diagram
Q4 -Crystal defects, other equilibrium diagrams, and allotropy
Q5 - Welding
Q6 - Polymers, formation and process
Q7 - Machines: Lathe, Milling and Shaping
Q8 - Mechanisms and other random crap. Not as predictable as ALL the others.

Same for both levels mate?

luke999

Awwww, turgon loves me really. Thx a mill, id give you a manly hand shake if i could. Ok, lets cram.

slickmcvic

hers a plan for ya loadsa time left to cover it.....page no's refer to smyth and henesseys book!!



Day 2
Q2
Do this Question!!
Read Pages 151 to P181.
Summarise and make notes under the following headings.
Mechanical Testing
Types of forces: Bending,Compression,Torsion,Tensio
n, shear
Material Properties,
Ductility,Conductivity,mallaebilit
y, Elasticity,plasticity, Shear Strength, Tensile Strength.

The Tensile test
Be able to draw and read a load/Extenion Graph.
Be able to understand the stress strain graph and its relationship to the Load/Extension Graph.
Tensile Testing - Draw graph - Stress v Strainl
ProofStress & Young's Modulus
The Izod & Charpy Tests
Be Able to sketch & explain the stages, & Explain the difference between the 2. (Izod test piece held vertical like an "I")

Non Destructive Testing
NDT - name test/material (ferrous/non ferrous )/type of flaws (surface, internal )/principle of operation/diagram
Ultrasonic/Radiographic/Magnetic Dye Penetrant
Brinnell & Vickers TESTS(test for what?,describe operation)
Fatigue Failure/Creep
Be Able to sketch & explain the stages of all the above tests.

Day 3
Q5
Read Welding Pages 357 >388
Be Able to draw and describe the operation of the following in detail.
Oxy-Acetylene Welding,
Function of flashback arrestor Identify 3 types of flame
Manual Metal Arc Welding
MAGS/MIG Welding

Be able to identify and give uses of the following.
TAG/TIG Welding
Submerged Arc
Ressistance spot
Seam welding

**Transformer Rectifer****
**Diagram P367 Very Important**
Be Able to identify parts
& describe operation of the Transformer Rectifer

Other Topics
robotic control advantages
safety in welding
Welding Symbols


Day 4
P113>126 & P207 >P216
Polymers
Study the structure of polymersTyes of bonding
VanderWalls Forces

Polymer Manufacturing
Injection Moulding
Extrusion
Compression Moulding
Rotational Moulding ( For Tanks,hollobjects etc.)
Vacume Forming Etc

Day 4
Thermo Equilibrium Diagrams & Heat Treatment
Be Able to label the regions of the TE Diagrms.
(Both Lines & regions)
Be Ale to describe & give use for processes of
Flame Hardening
Induction hardening
Carburising
Age Hardening
Annealling
Stres Relieving
Normalising

The Iron Carbon Diagram
KNOW INSIDE OUT!!!
BE ABLE TO LABEL AND EXPLAIN REGIONS & TERMS
Eutectic
Eutecoid
allotropy

Day 5
Q1 Question A

turgon

slickmcvic, Ive a better plan

Go onto my other thread, download the notes I posted there, Hopefully they will help you all.

http://www.boards.ie/vbulletin/showthread.php?p=56278685#post56278685

powpeach

wat do i need to study to pass the thing?

SRFC90

Oh no.........:(

HELLO132

I'm not even bothering with ordinary Engineering(i hate it so much:mad:), i'm pretty sure i at least passed all my other subjects and i can only see myself scraping a pass if i studied. I might do a bit tommorow morning but no more than an hour :cool:

Brooke01

is engineering hard to do for the LC ???

Milky Joe

Brooke01 wrote: »

is engineering hard to do for the LC ???

no! for me anyway twas good fun watching the project come together and the practical was actually enjoyable i thought! also the theory is very predictable same stuff comes up every year

SRFC90

Brooke01 wrote: »

is engineering hard to do for the LC ???

What he's trying to say is it's rotten!

turgon

Brooke01 wrote: »

is engineering hard to do for the LC ???

No. Just dont be stupid like everyone else, and actually do work on the theory.

powpeach

wat work????? i dont even know what to study!!!:(:(:(:(

help me, i cant ****in wait to be finished

SRFC90

Whats the difference between hardness and toughness?

Dr. Baltar

SRFC90 wrote: »

Whats the difference between hardness and toughness?

Hardness is the ability of a material to withstand scratching.

Toughness is the ability of a material to withstand impacts.

Glass is hard, but not tough.

SRFC90

Sir Baralot wrote: »

Hardness is the ability of a material to withstand scratching.

Toughness is the ability of a material to withstand impacts.

Glass is hard, but not tough.

Thank you!

And one more...metal properties

Brittleness:

Ductility:

Malleability:

turgon

Brittleness: A material that is very hard is usually also brittle. It will break if struck. Example hardened iron: is brittle because of the carbon needle martensite structure. Glass is hard and brittle

Ductility: Ability to be stenched/rolled. Some metals are rolled into sheets of long tubes - these metals need to be ductile

Malleability: Easy to work, example lead. Red hot iron is also very malleable because of its structure.

turgon

PS martensite has Base Centre Tetragonal Structure!

Just remembered there, I posted engineering notes here, including a comprehensive section on metals (as Q3) i think.

Linky: http://www.boards.ie/vbulletin/showthread.php?p=56278685#post56278685

Dr. Baltar

Brooke01 wrote: »

is engineering hard to do for the LC ???

Engineering is not harder/easier than most other Leaving Cert subjects.
However, there is one very big problem with it.
In the entiire country, only one book has been printed on the subject, and this book does not cover everything on the course.

For this reason, Engineering is difficult because most of it is your own research and work. When you take into account the fact that you also have to do a practical and a project (that takes up a lot of time for the Leaving Cert) it is really not a recommended subject (unless you really, really want to do Engineering at third level).

Personally, I hate the damn subject and cant wait for it to be over.

turgon

Sir Barolot is on the ball. When I made out notes to study I based them on the exam papers, and I had to consult the marking schemes the WHOLE time to find loads of answers not in the book. Like theres this type of welding (electro slag welding) that is really commonly asked, but not in the book.

But if you like Engineering and making stuff, then it can be very rewarding, especcially the project.

Dr. Baltar

How'd it go for you guys?
I thought that it was grand enough.
Even the Short Questions were decent enough.
Also, loved the Special Topic Question.

Besides that, I thought it was difficult enough, but I reckon I'm looking at a C3.

SRFC90

Sir Baralot wrote: »

How'd it go for you guys?
I thought that it was grand enough.
Even the Short Questions were decent enough.
Also, loved the Special Topic Question.

Besides that, I thought it was difficult enough, but I reckon I'm looking at a C3.

Is the special topic for ordinary level students?? Because i looked at it a small bit but can't remember if it was actually there or not?

AndyWhite

Did anyone by any chance download that page from the 2fm website that explained all of the questions??

I had the link saved but they updated the website and now its gone! It was done for the 08 special topic but it would still be hand for this year with all the other questions! If anyone has it, please pm me!

-ilikeshorts

haywire wrote: »

ye cool luke its photovolatic cells or sumptin its not that bad

NO ITS NOT!!!!!!!!!!!!!!!!!!!!!!
The special topic is on hybrid cars and stuff..

Oh this thread is a year old phew