Technology In The Home Flashcards by keliiane Tambe

What are the advantages of technology?

Convenient less labour
More time for friends and family 
Hygienic
Better communication
Better security
Good entertainment

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What is technology?

It is a practical use of science in our lives

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What are the disadvantages of technology?

Expensive
Difficult to handle and clean
Disposing machines bad for enviroment
Jobs can be better by hand
Spelling skills are lost

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How do you choose household appliances?

Cost, energy efficiency, quality, safety, needs, specifications, design, guarantee, after-sales service

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What are the main types of household appliances?

Appliances with a motor,
Appliances with a heating element
Big appliance with both an element

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What are the features of a an electric hob?

Dual rings
Halogen rings
Induction hob
Split level

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What are the features of a gas hob?

Surface composition grill, push button ignition, pilot light

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What are the functions of halogen rings?

It heats up quickly, easy to control

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What is the function dual ring?

Only heats up one ring, uses less energy

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What is the function of the induction hob?

It only heats the saucepan doesn’t burn hand

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What is the functions split level?

oven is separate to the hob could be in eye level or lower

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What is the function of a surface combustion grill?

Small flames over the heating surface to give a larger grilling area

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What is the function of a pilot light or push button ignition

To light a gas cooker

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What ar the features of an electirc or gas grill

Dual grill

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What is the function of a dual grill

Allows one half of the grill to be used for small amounts of food

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What are the features of an electric and gas oven?

Glass-panelled external oven door, removeable drop-down door and oven roof, cool touch doors, stay-clean or self-cleaning oven linings

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What are the functions of a removable drop-down door or oven roof

For easy cleaning

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What are the functions of a cool touch doors

For safety

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What is the function of a stay clean or self cleaning oven linings

To keep it clean for longer

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What are the features of an electric oven?

Multifunction ovens, auto timer

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What is the feature of a multifunction oven

Adjusts to suit different cooking conditions

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What is the function of an auto timer

Pre-set to switch itself on and off automatically

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What is the feature of a gas oven?

Oven flame-failure device

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What is the function of the oven flame failure device?

Safety feature to stop gas flow if burner goes out

What is the function of the thermostat

It keeps the oven at the temperature set on the control dial

Name the three transfers of heat?

Radiation, conduction and radiation

What type of heat transfer does the hob do?

Conduction

What type of heat transfer does the grill do?

Radiation

What type of heat transfer does the oven do?

Convection

List five guidelines used to care for a cooker

``` Wipe spills. Wipe grill pan ater use Don't drag heavy saucepans on the hob Avoid harsh cleaning agents Special cleaner for ceramic hobs ```

List four guidelines used for choosing a cooker

Gas or electricity cookers depends on availibilty on fuel Gas ones heat quick easy to control electric ones are cleaner Choose a freestanding cooker or a separate oven and hob For an electroc cooker decide on a ceramic hob, solid plate or coiled ring

What are the three guidelines used to place the cooker

Place cooker near gas or electric connection Gas cookers should be place away from draughts Don't place cook near the fridge or at the end of a line units

What appliance does a refrigerator use

Motor

How does a refrigerator keep food cold

Because of the liquid refrigerant

How does the the liquid refrigerant keep food cool?

It takes heat from food and the air inside the refrigerator

What are the functions of a refrigerator?

``` Keeps perishable food fresh for longer Reduces wastage of leftover food Less shopping Protects food from flies and dust Reduces risk of food poisoning Stores frozen foods or freezes fresh foods in freezer ```

What are the features of a refrigerators?

Integrated door panel, adjustable feet, movable plastic coated shelves, Cold drinks dispenser, split shelves, wine rack, ice dispensers, zoned refrigeration, automatic defrost

What is the function of an intergrated door panel?

To match other kitchen fittings

What is the function of adjustable feet?

To adjust height

Movable plastic coated shelves

To fit large items

Cold drinks dispenser

For convenience

Split shelves

To store taller items

Wine rack

To chill wine bottles horizontally

Ice dispensers

For convenience

Zoned refrigeration

Different parts may have different temperature

Automatic defrost

Prevents build up of ice

Name five guidelines used to use a refrigerator?

``` Cooker must be away from refrigerator Cover food before refrigerating Wrap strong smelling foods Don't refrigerate fruit, or root vegetables Don't refrigerate hot foods ```

Name three guidelines that can be used to care a fridge

Defrost regularly Clean inside with 1tbsp bread soda and 1/2 litre of warm water Wash, dry and polish the outside

What are the five guidelines used to buy a refrigerator?

``` Choose one large enough for the family Decide refrigerator or fridge-freezer Ensure there is enough space Consider method of defrosting Note star rating on frozen food compartment ```

What temperature and how long would the food last with the star a) *. Rating b) ** c) *** d) ****

a) *= -6C stores frozen food for a week b) ** = -12C stores frozen food for a month c) *** = -18C stores frozen food for three months c) **** = -18C to -25C stores frozen food for a year

How does the microwave heat food?

It energy waves that are attracted to water and fat molecules, it enters the food and the food molecules vibrate to cause friction that produces heat

What are the uses of the microwave?

``` Defrosting Cooking Reheating Melting Softening ```

What are the advantages of a microwave oven?

Quick and convenient Healthy Saves washing up Food keeps its colour

What are the disadvantages of a microwave oven

Bad for big pieces of food Does not brown food Can't tenderise tough cuts of meat Foods can be over cooked easily

What are the six guidelines used to use a microwave oven?

Follow instructions. Allow standing time Size, thickness quantity of food influences cooking time Cover foods Pierce food with the skin Arranger food in a circle

Name two guidelines used to buying a microwave ven?

Consider points in pg324 | The wattage

What are the features of a microwave oven?

Turntables, dial controls/push button, automatic programming, temperature probe, auto-weight defrost, browning dish, browning element child lock

Standing time

Leave the to stand outside the oven for a few minutes before eating. Food continues to cook in this time