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Tegnologie

Graad 7

Stelsels en beheer: vervoer

Module 1

Veiligheid

Veiligheid

Gebruik veilige werkspraktyke en toon ‘n bewustheid van doeltreffende maniere om materiaal en gereedskap te gebruik.

Dit is belangrik om veiligheidsmaatreëls te ken en van die begin af toe te pas. Maak seker dat jy weet waar die Noodhulptas en die hoofskakelaar is. Onthou ook om alle ongelukke by jou onderwyser/ es aan te meld.

  • Dra altyd ‘n voorskoot af ‘n oorjas om jou klere te beskerm en toe skoene om jou voete te beskerm.
  • Trek jou baadjie / trui uit en rol jou moue op. Druk ook jou das se punte in jou hemp in.
  • Dogters moet lang hare uit hul gesigte hou deur dit in ‘n poniestert vas te maak.
  • Verwyder verkieslik alle juweliersware soos ringe, kettinkies en armbande.
  • Moenie onverskillig met gereedskap soos skroewedraaiers wees nie.
  • Moenie hardloop of rondspeel in die klas nie, veral nie met gereedskap in jou hande nie.
  • Moenie hardop uitskree terwyl daar met gereedskap gewerk word nie.
  • Jy mag nie alleen of sonder toestemming met enige gereedskap of masjiene werk nie.
  • Volg alle instruksies oor die gebruik van apparate noukeurig.
  • Dra skerp gereedskap naby jou lyf en met die skerp punt na onder.
  • Moenie gereedskap gebruik vir ‘n ander doel as waarvoor dit gemaak is nie.
  • Plaas gereedskap na gebruik terug op sy oorspronklike posisie.
  • Hou jou werkoppervlak en vloerspasie rondom skoon en netjies.
  • Gebruik elektriese toestelle slegs na deeglike opleiding en met toestemming.
  • Moenie elektriese toestelle in klam of nat toestande gebruik nie.
  • Slegs een leerder word op ‘n slag by ‘n elektriese toestel toegelaat.
  • Maak ‘n masjien skoon na gebruik en rapporteer enige probleme of beskadiging, soos bv. dat ‘n draadskêr stomp is.
  • Was jou hande deeglik en droog hulle af na elke les.
  • Was jou hande veral deeglik as jy met olie, chemikalieë, verf of gom gewerk het.
  • Moenie hout in jou een hand vashou as jy dit met die ander hand saag nie.
  • Moenie ‘n skroef in ‘n stuk hout indraai as jy laasgenoemde in jou hand vashou nie.

Moenie in die rigting van jou ander hand of jou lyf beitel nie.

  • Gebruik ‘n saagplank vir enige saagwerk.
  • Sit gereedskap so neer dat die snykant weg van jou naaste maat is.

VEILIGHEID TEN OPSIGTE VAN ELEKTRISITEIT

Verskeie projekte vereis òf hoofstroomelektrisiteit òf battery-elektrisiteit. Kennis moet geneem word dat water en vog elektrisiteit gelei. Alle elektriese toestelle moet met sorg hanteer word, veral kondensators. Batterye moet verkieslik in aparte houers gebêre word. Batterye moet uit stroombane verwyder word. Stroombane moet oop wees as projekte gebêre word. Moenie met hoofstroomelektrisiteit speel nie, want jy kan jou doodskok. Skok kan ernstige brandwonde en ander beserings veroorsaak.

Hoe om ‘n elektriese toestel aan te skakel

  • Kontroleer dat die toestel afgeskakel is.
  • Kontroleer dat die sok afgeskakel is.
  • Kontroleer of die elektriese koord en prop nie beskadig is nie.
  • Druk die prop in die sok.
  • Skakel die sok aan by die muurskakelaar.
  • Skakel die apparaat aan by die skakelaar.

Hoe om ‘n elektriese toestel af te skakel

  • Skakel die toestel af by die skakelaar.
  • Skakel die sok af by die muurskakelaar.
  • Verwyder die prop van die sok.

Questions & Answers

how does Neisseria cause meningitis
Nyibol Reply
what is microbiologist
Muhammad Reply
what is errata
Muhammad
is the branch of biology that deals with the study of microorganisms.
Ntefuni Reply
What is microbiology
Mercy Reply
studies of microbes
Louisiaste
when we takee the specimen which lumbar,spin,
Ziyad Reply
How bacteria create energy to survive?
Muhamad Reply
Bacteria doesn't produce energy they are dependent upon their substrate in case of lack of nutrients they are able to make spores which helps them to sustain in harsh environments
_Adnan
But not all bacteria make spores, l mean Eukaryotic cells have Mitochondria which acts as powerhouse for them, since bacteria don't have it, what is the substitution for it?
Muhamad
they make spores
Louisiaste
what is sporadic nd endemic, epidemic
Aminu Reply
the significance of food webs for disease transmission
Abreham
food webs brings about an infection as an individual depends on number of diseased foods or carriers dully.
Mark
explain assimilatory nitrate reduction
Esinniobiwa Reply
Assimilatory nitrate reduction is a process that occurs in some microorganisms, such as bacteria and archaea, in which nitrate (NO3-) is reduced to nitrite (NO2-), and then further reduced to ammonia (NH3).
Elkana
This process is called assimilatory nitrate reduction because the nitrogen that is produced is incorporated in the cells of microorganisms where it can be used in the synthesis of amino acids and other nitrogen products
Elkana
Examples of thermophilic organisms
Shu Reply
Give Examples of thermophilic organisms
Shu
advantages of normal Flora to the host
Micheal Reply
Prevent foreign microbes to the host
Abubakar
they provide healthier benefits to their hosts
ayesha
They are friends to host only when Host immune system is strong and become enemies when the host immune system is weakened . very bad relationship!
Mark
what is cell
faisal Reply
cell is the smallest unit of life
Fauziya
cell is the smallest unit of life
Akanni
ok
Innocent
cell is the structural and functional unit of life
Hasan
is the fundamental units of Life
Musa
what are emergency diseases
Micheal Reply
There are nothing like emergency disease but there are some common medical emergency which can occur simultaneously like Bleeding,heart attack,Breathing difficulties,severe pain heart stock.Hope you will get my point .Have a nice day ❣️
_Adnan
define infection ,prevention and control
Innocent
I think infection prevention and control is the avoidance of all things we do that gives out break of infections and promotion of health practices that promote life
Lubega
Heyy Lubega hussein where are u from?
_Adnan
en français
Adama
which site have a normal flora
ESTHER Reply
Many sites of the body have it Skin Nasal cavity Oral cavity Gastro intestinal tract
Safaa
skin
Asiina
skin,Oral,Nasal,GIt
Sadik
How can Commensal can Bacteria change into pathogen?
Sadik
How can Commensal Bacteria change into pathogen?
Sadik
all
Tesfaye
by fussion
Asiina
what are the advantages of normal Flora to the host
Micheal
what are the ways of control and prevention of nosocomial infection in the hospital
Micheal
what is inflammation
Shelly Reply
part of a tissue or an organ being wounded or bruised.
Wilfred
what term is used to name and classify microorganisms?
Micheal Reply
Binomial nomenclature
adeolu
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Source:  OpenStax, Tegnologie graad 7. OpenStax CNX. Sep 10, 2009 Download for free at http://cnx.org/content/col11031/1.1
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