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Tegnologie

Graad 7

Stelsels en beheer: elektrisiteit

Module 11

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

What is inflation
Bright Reply
a general and ongoing rise in the level of prices in an economy
AI-Robot
What are the factors that affect demand for a commodity
Florence Reply
price
Kenu
differentiate between demand and supply giving examples
Lambiv Reply
differentiated between demand and supply using examples
Lambiv
what is labour ?
Lambiv
how will I do?
Venny Reply
how is the graph works?I don't fully understand
Rezat Reply
information
Eliyee
devaluation
Eliyee
t
WARKISA
hi guys good evening to all
Lambiv
multiple choice question
Aster Reply
appreciation
Eliyee
explain perfect market
Lindiwe Reply
In economics, a perfect market refers to a theoretical construct where all participants have perfect information, goods are homogenous, there are no barriers to entry or exit, and prices are determined solely by supply and demand. It's an idealized model used for analysis,
Ezea
What is ceteris paribus?
Shukri Reply
other things being equal
AI-Robot
When MP₁ becomes negative, TP start to decline. Extuples Suppose that the short-run production function of certain cut-flower firm is given by: Q=4KL-0.6K2 - 0.112 • Where is quantity of cut flower produced, I is labour input and K is fixed capital input (K-5). Determine the average product of lab
Kelo
Extuples Suppose that the short-run production function of certain cut-flower firm is given by: Q=4KL-0.6K2 - 0.112 • Where is quantity of cut flower produced, I is labour input and K is fixed capital input (K-5). Determine the average product of labour (APL) and marginal product of labour (MPL)
Kelo
yes,thank you
Shukri
Can I ask you other question?
Shukri
what is monopoly mean?
Habtamu Reply
What is different between quantity demand and demand?
Shukri Reply
Quantity demanded refers to the specific amount of a good or service that consumers are willing and able to purchase at a give price and within a specific time period. Demand, on the other hand, is a broader concept that encompasses the entire relationship between price and quantity demanded
Ezea
ok
Shukri
how do you save a country economic situation when it's falling apart
Lilia Reply
what is the difference between economic growth and development
Fiker Reply
Economic growth as an increase in the production and consumption of goods and services within an economy.but Economic development as a broader concept that encompasses not only economic growth but also social & human well being.
Shukri
production function means
Jabir
What do you think is more important to focus on when considering inequality ?
Abdisa Reply
any question about economics?
Awais Reply
sir...I just want to ask one question... Define the term contract curve? if you are free please help me to find this answer 🙏
Asui
it is a curve that we get after connecting the pareto optimal combinations of two consumers after their mutually beneficial trade offs
Awais
thank you so much 👍 sir
Asui
In economics, the contract curve refers to the set of points in an Edgeworth box diagram where both parties involved in a trade cannot be made better off without making one of them worse off. It represents the Pareto efficient allocations of goods between two individuals or entities, where neither p
Cornelius
In economics, the contract curve refers to the set of points in an Edgeworth box diagram where both parties involved in a trade cannot be made better off without making one of them worse off. It represents the Pareto efficient allocations of goods between two individuals or entities,
Cornelius
Suppose a consumer consuming two commodities X and Y has The following utility function u=X0.4 Y0.6. If the price of the X and Y are 2 and 3 respectively and income Constraint is birr 50. A,Calculate quantities of x and y which maximize utility. B,Calculate value of Lagrange multiplier. C,Calculate quantities of X and Y consumed with a given price. D,alculate optimum level of output .
Feyisa Reply
Answer
Feyisa
c
Jabir
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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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