Technology In The Home

Question 0

All cookers have…

Answer 0

…a hob, a grill and an oven.

Question 1

Cookers can be fuelled by…

Answer 1

…gas and/or electricity or by solid fuel.

Question 2

Features of a Hob include…

Answer 2

…dual rings, halogen rings, induction hob and spilt-level cookers.

Question 3

Features of a Grill include…

Answer 3

…dual grill.

Question 4

Features of an Oven include…

Answer 4

…glass panelled external door, removable drop-down door and oven roof, cool touch doors, stay-clean or self-cleaning oven linings.

Question 5

Electric oven…

Answer 5

…multifunction ovens and auto timer.

Question 6

Gas oven…

Answer 6

…oven flame-failure device.

Question 7

Thermostat…

Answer 7

…keeps the oven at the temperature set on the control dial.

Question 8

Methods of heat transfer in a cooker…

Answer 8

…conduction, radiation and convection.

Question 9

Conduction…

Answer 9

…heat is transferred along a solid object eg. The hob heats saucepans by conduction.

Question 10

Radiation…

Answer 10

…heat rays travel in straight lines and heat the first object they hit eg. The grill heats food by radiation.

Question 11

Convection…

Answer 11

…air (or liquid) is heated and then rises from the surface, and cool air (or liquid) replaces it. This sets up convection currents eg. The oven heats food by convection.

Question 12

What are microwaves?

Answer 12

Microwave are energy waves attracted to water and fat molecules. They enter the food and make the food molecules viber ate, causing friction. This friction produces heat in the food.

Question 13

What are the uses of a microwave oven?

Answer 13

• Cooking food quickly.
• Reheating.
• Defrosting.
• Melting.
• Softening.

Question 14

What cookware is suitable for cooking in a microwave oven?

Answer 14

•Heat-resistant glass, plastic and china dishes.

Question 15

What cookware is unsuitable for cooking in a microwave oven?

Answer 15

•Metal containers, metal-trimmed dishes, aluminium foil or foil-lined covers.

Question 16

Advantages of a microwave oven?

Answer 16

• Quick and convenient.
• Healthier.
• Saves washing up.
• Food keeps it colour.

Question 17

Disadvantages of a microwave oven?

Answer 17

• Unsuitable for large amounts of food.
• Does not brown foods.
• Does not tenderise tough cuts of meat.
• Food may be overcooked or burned easily.

Question 18

When using a microwave oven…

Answer 18

1. Follow instructions given.
2. The size, thickness and quantity influence the cooking time.
3. Pierce foods with a skin to prevent them bursting.
4. Allow for standing time.

Question 19

When cleaning a microwave oven…

Answer 19

1. Wash, Polish and dry the outside of a microwave oven.
2. Wipe up spills immediately.
3. Clean out any food crumbs left behind before they start to rot.
4. Use hot,soapy water or a microwave cleaner to clean the microwave.

Question 20

When buying a microwave oven…

Answer 20

1. How much does it cost?
2. How much wattage do u need (600w - 1000w)?
3. Does it come with a warranty?
4. What size will suit the family needs?

Question 21

Special features of a microwave oven…

Answer 21

1. Automatic programming.
2. Temperature probe.
3. Auto-weight defrost.
4. A browning dish.
5. A browning element.
6. A child lock.

Question 22

See Refrigerators on page

Answer 22

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