KCSE HOME SCIENCE QUESTIONS AND ANSWERS

Outline the steps to follow when mending a gaping seam on an apron.

3/6/2020

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Outline the steps to follow when mending a gaping seam on an apron.

Mend before washing.
Remove any loose threads in the areas to be mended.
Hold with pins the old stitches line adding some extra ungaped portion if possible to prevent any further gaping.
Press the seam.
Tack the seam using temporary stitches.
Remove the pins.
Make permanent stitches
Remove the temporary stitches
Press the seam.

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Explain four qualities of a well made cuff.

3/6/2020

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Explain four qualities of a well made cuff.

The type of seam is appropriate to the type of fabric, the position of the seam, the projected care of the garment, quality, and design.
Stitch length is appropriate to the fabric and to the expected stress at the stitched location.
Gathers are uniform and evenly distributed and stitched so as not to form pleats.
Gathers are pressed flat only in the seam allowance
The fashion fabric and the underlining fabric relate well—the garment is neither over-supported nor under-supported for the desired design effect.
The interfacing complements and reinforces the fashion fabric without overpowering it.
Interlinings are of lightweight or open weave fabrics with insulating properties.
The lining is on the same grain as the fashion fabric
Functional applied pockets are positioned at a location convenient for use.
The width of the binding is even.
Facings lie smoothly with no ripples or puckers.
The width of the band is even unless otherwise designed.
Under stitching holds the facing (neckline, collar, cuff, pocket) in place.

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Explain three factors to consider when caring for a white nylon shirt.

3/6/2020

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Explain three factors to consider when caring for a white nylon shirt.

Avoid exposure to direct sunlight as it will yellow.
Avoid rubbing as it piles.
Avoid high temperature as it destroys the fibre/melts/burns/scorch.
Do not bleach as it will turn yellow.
Wash separately from coloured garments to avoid discolouration

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State one function of any three of the bedding items mentioned in (i).

3/6/2020

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State one function of any three of the bedding items mentioned in (i).

Waterproof sheet to protect the mattress or pad
Mosquito netting to protect it from insect bites
Blankets to keep warm in cool weather

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Give the systematic order of placing bedding items when preparing a bed.

3/6/2020

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Give the systematic order of placing bedding items when preparing a bed.

A firm mattress
Under blanket
Sheets made of washable cotton material.
Blankets to keep warm.
Mosquito netting

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Outline the procedure of caring for a household duster after use.

3/6/2020

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Outline the procedure of caring for a household duster after use.

Shake outside after use/remove any unwanted material.
Soak /in cold water.
Wash thoroughly in warm soapy water
Rinse in warm water and finally in cold water to refreshen the fabric
Dry in the open air
Store in a dry well ventilated place

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Highlight four pieces of information found on a receipt of goods sold.

3/6/2020

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Highlight four pieces of information found on a receipt of goods sold.

Date
Client’s name
Payment of
Paid By
Received By
Amount
Cash/ Cheque

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Giving a reason in each case, state four rules to observe when making short crust pastry.

3/6/2020

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Giving a reason in each case, state four rules to observe when making short crust pastry.

All ingredients must be weighed accurately to come up with a quality product
The mixture should be aerated as much as possible to allow proper raising of the product
Pastry should be kept as cool as possible to avoid the fat melting
The pastry should be handled as little as possible to avoid hardening the product
The pastry should be rolled on a light floured surface to avoid sticking
Pastry should be rolled with light to and fro movement to avoid extracting the trapped air
The pastry should be baked in a fairly hot oven so that the water is quickly turned to steam to puff up the pastry
All measured liquids should be added at once to give an even texture.

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Explain four reasons why it would not be advisable to buy a refrigerator on hire purchase.

3/6/2020

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Explain four reasons why it would not be advisable to buy a refrigerator on hire purchase.

The final cost paid increases from the original as one has to pay the interest charged.
It may wear out before the final payments are made.
If one is unable to pay the monthly interest one will lose the refrigerator and the money already paid.
Payments are not negotiable as when buying at cash.
One misses joy of using the refrigerator fully until the whole amount is paid.

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Explain two disadvantages of preserving food,

3/6/2020

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Explain two disadvantages of preserving food,

May lead to destruction of some nutrients.
Food may change in taste/flavour and colour.
May lead to food poisoning if poorly preserved.
Some foods are rendered unsuitable to some groups of people.

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State two principles of food preservation

3/6/2020

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State two principles of food preservation

Application of heat.
Removal of water/moisture/dehydration.
Exclusion of air/oxygen.
Reduction of temperature.
Application of preservatives /chemicals

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Outline the steps you would follow to thoroughly clean the dressing mirror.

3/6/2020

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Outline the steps you would follow to thoroughly clean the dressing mirror.

Do not use commercial cleaners.
Collect all the equipment and materials required
Remove dust using a dry) cloth wipes/rubs the mirror using a cloth wrung out of warm soapy water.
Rinse using a cloth wrung out of clean warm water.
Dry using a clean dry cloth/newspaper/sponge
Buff mirror using a soft clean dry non-fluffy/lintless cloth/newspaper.
Clean equipment used and store appropriately.

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Describe the procedure you would follow when laundering a coloured cotton handkerchief.

3/6/2020

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Describe the procedure you would follow when laundering a coloured cotton handkerchief.

wash in warm soapy water using friction method
rinse in clean warm water
finally rinse in cold water, add vinegar
dry in the shade
iron while slightly damp using a hot iron Air and fold appropriately

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You are planning to host your sister's graduation party at home.Without the use of chlorine, outline the procedure you would use to make muddy contaminated water safe for drinking and store ready for use.

3/6/2020

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You are planning to host your sister's graduation party at home.Without the use of chlorine, outline the procedure you would use to make muddy contaminated water safe for drinking and store ready for use.

Leave the water to stand for sometime for mud to settle at the bottom of the container and then decant
filter using a filter paper/home filter/clean cloth
Boil the water.
Put the boiled water in a clean container
Cover with clean lid/cover

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Give the meaning of “counterfeit”

3/6/2020

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Give the meaning of “counterfeit”

It is an imitation of what is a genuine item with an intention to deceive/defraud.

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List four stitches used to finish a hem

3/6/2020

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List four stitches used to finish a hem

Hemming stitches
Whipping stitches
Slip hemming stitches
Herring bone
Shell hemming

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Differentiate between trimmings and trimming as used in clothing construction.

3/6/2020

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Differentiate between trimmings and trimming as used in clothing construction.

Trimmings are sewing notions used for decorating garments such as laces and bias binding while Trimming is the action of cutting off excessive fabric on seams or edges of fabric.

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The size of a French seam is determined by:

3/6/2020

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The size of a French seam is determined by:

Weight of fabric
Effect desired
Use of the garment

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Give two reasons for interfacing a garment.

3/6/2020

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Give two reasons for interfacing a garment.

To give body or shape
Stiffening to add firmness
Giving a crisp tailored look to the area where applied
Obtaining a good knife edge
Increasing crease resistance
Prevent stretching or sagging
Reinforcement as for button and buttonholes area

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Outline two reasons for blending fibres.

3/6/2020

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Outline two reasons for blending fibres.

To improve on the quality of fibers like making them stronger.
To stop static electricity e.g. when cotton is blended with man made fabric like rayon the static electricity is never generated.

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