Demonstration Flashcards

Learn how to use a Brainscape Deck

1
Q

What single appliance uses the most electricity in a household?

A

refrigerator## FootnoteStudies show the refrigerator to use up about 30% of the electricity in your home.

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2
Q

What part of a plug should you hold when removing it from an outlet?

A

the plastic housing

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3
Q

What can happen with an electrical outlet when you plug in too many adapters at once?

A

electrical overload## FootnoteAn electrical overload is a potential fire hazard which occurs when too much current passes through the connected electrical wires. While most electrical outlets are protected by either fuses or circuit breakers to minimize the damage done by electrical overload, it is not advised to plug in too many adapters to one outlet at once.

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4
Q

True or false:A plugged-in device, that is turned off, is still connected to electricity.

A

TRUE## FootnoteTry to unplug devices when not using them to make sure there’s no current flowing through. This reduces the risk of shock or fire incidents. Always wear rubber gloves when trying to repair electrical equipment to minimize the risk of electric shocks.

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5
Q

A ____ ________ occurs when an electrical current finds a way to bypass the appliance on a path that has little or no resistance

A

short circuit## FootnoteA typical example is when frayed insulation bares a wire and allows it to touch the frame of the appliance, so the current can flow straight to the ground. Fuses (and circuit breakers) are designed to “blow” so that the connection is interrupted to prevent electric shock and fire.

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6
Q

True or false:Cotton is the best material to wear as protection when dealing with electrical wires in and around your home.

A

FALSE## FootnoteCotton and linen are more likely to catch fire in the event of a spark. 100% polyester or wool is a safer choice.Also remember to wear rubber gloves and shoes with insulated soles if working with electricity, as rubber is a non-conductive material that will help prevent the flow of current from the source to your body.

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7
Q

The basic unit of measure of electric power is the _____.

A

watt## FootnoteOne thousand watts are called a kilowatt. Your electric utility bills you by the kilowatt-hour (kWh) – a unit of energy equal to one kilowatt of power sustained for one hour

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8
Q

What’s the difference between a cable and a wire?

A
  • A cable is an assembly of two or more wires in a single jacket. * A wire is an individually insulated or bare conductor inside a jacket.
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9
Q

When you’ve spilled paint on your carpet, pour ________ on a rag and scrub away the paint.

A

denatured alcohol## FootnoteMake sure the rag is as close to the carpet color as possible as the alcohol can transfer some of the color.

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10
Q

To remove crayon from a wall, dip a rag in ______ ____ and lightly scrub the marks.

A

baking soda

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11
Q

Describe the four steps to unclog grease, fat, or oil from a garbage disposal (thereby removing the smell).

A
  1. Pour baking soda into the garbage disposal 2. Pour vinegar down the garbage disposal 3. Wait up to 20 minutes 4. Wash away the mixture with hot water while running the disposal
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12
Q

What kind of specialized tool can you use to dislodge a clog if a standard plunger fails to work?

A

a plumber’s snake## FootnoteA slender, flexible tool to dislodge clogs in plumbing. It makes physical contact with the obstruction and pushes it through the drain, dislodging it.

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13
Q

Most edible plants like vegetables and fruits need at least ____ hours of sun a day.

A

six## FootnoteSo if growing vegetables or fruit indoors, try to find the sunniest spot in your house!

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14
Q

What’s a cost-effective way to tell if a plant needs water?

A

Stick your finger an inch (2,5 cm) down into the soil (one knuckle deep).## FootnoteIf it feels dry, add water.Other ways are: check for wilting leaves, check the surface of the soil and feel if it’s dry, lift the plant container (if possible) to feel how heavy it is, or use a moisture sensor.

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15
Q

The average yearly date that the last or first frost of the year occurs is called the ____ ____.

A

frost date## FootnoteThis date range ensures that you don’t plant too early or too late in the season so your plants will grow in most optimal conditions.For example, flowers and tomatoes should be harvested before the frost date, whereas kale, cabbage, and turnips could actually benefit from frost and could thus be cultivated after the frost date.

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16
Q

When plants need a quick stimulant, it’s best to use [liquid / granular] fertilizer.

A

liquid## FootnoteThis type of fertilizer shows results sooner than the slow-release granular fertilizer. It’s a better choice if you need to provide immediate nutrients to your plant.

17
Q

How often do you have to use granular fertilizer for a lawn?

A

once a season## FootnoteGranular fertilizer is a slow-release type of fertilizer, which gives the lawn nutrients over a long period of time.

18
Q

Name the three most important nutrients for plants.

A
  1. Nitrogen 2. Potassium 3. Phosphorus## Footnote* Phosphorus helps with tissue growth in plants and can often be found in compost* Nitrogen is often found in manure and helps plants produce sugars with sunlight & water * Potassium helps to regulate photosynthesis and can be found in vegetables and fruitFertilizers often have these added to their mixture to ensure healthy plant life.
19
Q

What is the most ideal soil for plants?

A

loam## FootnoteLoam is a subcategory of topsoil with an optimal mixture of clay, sand, and silt.Loamy soil is the ideal soil for most garden plants as it holds plenty of moisture. It also drains exceptionally well so that the roots receive sufficient air.

20
Q

What three common organic materials can further improve soil’s richness for plant growth?

A
  1. Manure 2. Compost 3. Fallen Leaves## FootnoteManure, compost, and fallen leaves produce nutrients for growing plants such as nitrogen, potassium, and phosphorus. These stimulate tissue growth, improve photosynthesis, and the transportation of oxygen and water. The decomposition of these materials takes about 3 to 4 months.
21
Q

If your car’s brakes are squealing whenever you brake, you probably need new _____ ___.

A

brake pads## FootnoteThe sound indicates the old brake pads are worn out and rubbing against the brake rotor.

22
Q

What’s the most efficient tool to keep your car battery free from corrosion?

A

wire brush## FootnoteYou should use a solution of water and baking soda when cleaning with a wire brush.Ideally, you should be scrubbing the battery like this every two months as corrosion can build up quickly to damaging levels within a year.

23
Q

What’s the term used for a thin rod you can put into the oil reserve to check how much is left in it?

A

dipstick## FootnoteDipsticks have a measurement line on the rod itself. If the oil level is below that specific line, it’s time to fill up the oil reserve again.

24
Q

When doing laundry, what is the ideal temperature when washing delicate fabrics or items that might shrink?

A

cold## FootnoteAlso, to prevent delicate clothes from shrinking, do not put them in the dryer. Clothes will retain their quality for longer when air dried.