Home Science Paper 1 Questions and Answers - Asumbi Girls Highschool Pre-Mock Exams May-June 2022

Instruction to candidates

Write your name and index in the spaces provided.
This paper consists of 3 sections A, B and C.
Answer all questions in section A.
Section B is compulsory.
Choose ANY 2 questions in section C.
Answers to all questions must be written in the spaces provided.
Candidates should answer all questions in English.

QUESTIONS

SECTION A: COMPULSORY

State 2 disadvantages of maisonettes (2mks)
Give 2 reasons why butter/margarine are unsuitable for deep fat frying (2mks)
State 2 self-neatening seams (1mk)
List 2 conditions that encourage the growth of micro-organisms (2mks)
Name 2 types of Beriberi (2mks)
Give 2 advantages of advertising on a billboard (2mks)
Give 2 ways of preventing the spread of dandruff (2mks)
State 3 points to bear in mind when choosing a good candle (3mks)
Outline 4 edge neatening stitches (2mks)
Give 2 reasons for blanching vegetables (2mks)
Suggest 4 reasons which may cause menstruation to cease (2mks)
Distinguish between sponging and spotting (2mks)
State 4 uses of milk in cookery (2mks)
Give 2 advantages of home confinement (2mks)
State two factors that determine the cleansing action of a detergent (2mks)
Suggest two reasons that may lead to a mother giving birth to a deformed baby (2mks)
List four soft furnishings used in the bedroom (2mks)
State 2 functions of pockets in a garment (2mks)
List 2 grooming habits that prevents skin diseases (2mks)

SECTION B COMPULSORY

Your brother is celebrating his birthday and has requested you assist in cleaning
1. Outline the procedure of thoroughly laundering his loose coloured T-shirt (8mks)
2. Clean an oil painted wall (8mks)
3. Clean a plain wooden chopping board (4mks)

SECTION C
Answer any two questions from this section in the spaces provided

1. Explain 4 precautions to take to prevent occurrence of food poisoning when handling left over foods (8mks)
2. Highlight 4 laundry practices that harm wool (4mks)
3. write down 3 qualities of a well-made pastry (8mks)
4. Explain the preparation of a sewing machine in readiness for stitching (5mks)
1. State 5 ways of saving energy when lighting a home (5mks)
2. Highlight 4 ways of enhancing personal health (4mks)
3. Giving a reason suggest 3 nutrients that should be increased during pregnancy(3mks)
4. With the aid of a diagram outline in procedure of making an overlaid seam (8mks)
1. State 4 reasons for softening hard water for laundry work (4mks)
2. Explain 4 main causes of malnutrition in the country (8mks)
3. Explain the preparation and attachment of a squared patch pocket (8mks)

MARKING SCHEME

State 2 disadvantages of maisonettes (2mks)
- They are more expensive to construct
- They are not easy to extend and demolish
- Fires can easily spread
- Pest can crawl from one house to another
- Climbing of stairs is tiring to the old and physically challenged
Give 2 reasons why butter/margarine are unsuitable for deep fat frying (2mks)
- Have a low smoking point
- They have a distinct flavor that alter the flavor of food
- They have a lot of water content
- They are expensive
- They solidifies on cooking
State 2 self-neatening seams (1mk)
- French seam
- Double stitched seam/machine fell seam
- Run and fell seam
List 2 conditions that encourage the growth of micro-organisms (2mks)
- Warmth
- Moisture
- Food
- Oxygen
Name 2 types of Beriberi (2mks)
- Wet beriberi
- Dry beriberi
- Infantile beriberi
Give 2 advantages of advertising on a billboard (2mks)
- Easily visible
- It is attractive
- It is entertaining
- Reaches many people
- It is relatively permanent
Give 2 ways of preventing the spread of dandruff (2mks)
- Using disinfected shampoos and hair oils
- Avoid sharing combs and head gears
- Cleaning and disinfecting combs and hair brushes
State 3 points to bear in mind when choosing a good candle (3mks)
- Should be non-drip to last long
- Should be thick
- Should stand firm to avoid accidents
- Not emit harmful/poisonous gas when burning
Outline 4 edge neatening stitches (2mks)
- Loop stitches/blanket stitch
- Overcasting stitches
- Button hole stitches
- Machine overlook
- Zigzag stitches
Give 2 reasons for blanching vegetables (2mks)
- Stop action of enzymes
- Kills bacteria and pests
- Retention of vitamins, minerals and color of vegetables
Suggest 4 reasons which may cause menstruation to cease (2mks)
- Change of diet
- Change of climate
- Pregnancy
- Having cysts,
- Vigorous exercises
- Menopause
Distinguish between sponging and spotting (2mks)
- Sponging is a method of cleaning dark coloured and woolen articles that has been soiled on its surface only without immersing in water while spotting is a method of cleaning dark coloured garments that has been soiled accidently and require immediate attention.
State 4 uses of milk in cookery (2mks)
- For enriching food e. porridge, mashed potatoes
- For beverage preparation
- For making butter
- In flour mixture as a liquid/binding dry ingredients
Give 2 advantages of home confinement (2mks)
- Saves on hospital expenses
- It prevent home sick when in hospital
- Patient gets diet they want
- Enjoyment of relatives company
- No fear of baby exchange
- The mother takes care of her family
State two factors that determine the cleansing action of a detergent (2mks)
- Type of builders added
- Type of water used e.g. soft
- Temperature of water
- Mechanical action used
- Washing time
Suggest two reasons that may lead to a mother giving birth to a deformed baby (2mks)
- Intake of alcohol
- Smoking while pregnant
- Lack of a balanced diet
- Drug use
- Sexually transmitted infections
- High levels of stress
List six soft furnishings used in the bedroom (3mks)
- Carpets
- pillows
- Bedcovers
- lampshade
- Curtains
- Wall hanging
- Draperies
State 2 functions of pockets in a garment (2mks)
- Introducing a fashion features
- For decorations
- Keeping small items like money, handkerchief,sanitizer
- Complete a garment e.g. a shirt
List 2 grooming habits that prevents skin diseases (2mks)
- Having regular baths with clean water and soap
- Avoid sharing personal items
- Wear clean ironed clothes
- Eat well balanced meals
- Disinfect items to be shared e.g. basin/bucket
Your brother is celebrating his birthday and has requested you assist in cleaning
1. Outline the procedure of thoroughly laundering his loose coloured T-shirt (8mks)
  - Collect all equipment and materials (1/2)
  - shake to remove loose dirt (1/2)
  - Wash in warm (1/2) soapy (1/2) water using kneading (1/2) and squeezing
  - Wash quickly (1/2) to minimize colour loss
  - Rinse in warm water (1/2) to remove soap and water
  - Final rinse in cold (1/2) water with salt(1/2) to fix in colour and vinegar to brighten the colour (1/2)
  - Squeeze excess(1/2) water and dry flat inside out(1/2) under shade (1/2) to prevent fading
  - Iron with a warm(1/2) iron on the wrong side(1/2)
  - Air (1/2), fold and store (1/2) appropriately
  - Clean, dry and store the equipment used(1/2)
    (1/2x16)
2. Clean an oil painted wall (8mks)
  - Collect equipment and equipment(1/2)
  - Dust (1/2) using a dry cloth(1/2) to remove loose dirt
  - Wipe(1/2) using a clean cloth (1/2)wrung from warm (1/2)soapy water(1/2)
  - Work from low levels (1/2) going upwards to avoid tear (1/2) marks/trickling stains
  - Clean a portion(1/2) at a time slightly overlapping(1/2) in parts
  - Rinse immediately(1/2) by wiping (1/2)with a cloth(1/2) wrung out of clean water(1/2) starting top coming (1/2) downwards
  - Dry(1/2) with a dry soft(1/2) non fluffy cloth
  - Buff to shine with a clean dry lintless cloth(1)
  - Clean dry and store(1/2) the equipment and materials used
    (1/2x16)
3. Clean a plain wooden chopping board (4mks)
  - Collect all equipment and materials(1/2)
  - Clean with a soft brush(1/2) and warm soapy(1/2) water scrubbing along the grain(1/2)
  - Rinse in warm water(1/2)
  - Final rinse in(1/2) cold water to freshen the wood
  - Dry with a cloth(1/2) and store in a rack
  - Clean, dry (1/2)and store equipment and materials used
    (1/2x8)
1. Explain 4 precautions to take to prevent occurrence of food poisoning when handling left over foods (8mks)
  - Leftover foods should never be reheated more than once to this prevent growth of microorganisms
  - The food that are perishable e.g. meat should be checked to ensure they are not stale before reheating
  - The food should be properly stored before reheating to avoid contamination leading to food poisoning
  - Large pieces should be broken sliced in small pieces to ensure proper reheating to avoid development of microorganism causing food poisoning.
2. advantages of convenience foods (4mks)
  - saves time and energy
  - they are appealing in colour
  - Provide a quick snack
  - Help try out new recipes eg prepared samosas
3. write down the qualities of a well-made pastry (8mks)
  - It should be crisp
  - Soft and crumbly
  - Golden brown colour
  - Should be flaky
  - Have an acceptable flavor
4. Explain the preparation of a sewing machine in readiness for stitching (5mks)
  - Dust and wipe the machine to avoid dirtifying the work
  - Station the machine in a well lit room to avoid accidents
  - Thread the machine correctly before using it
  - Test for stitch length and tension before using
  - Test on a double fabric o the correct stitches
1. State 5 ways of saving energy when lighting a home (5mks)
  - Always switch off the lights when not in use
  - Use natural lightning as much as possible
  - Use light coloured surfaces i.e. ceiling and walls for easier distribution of light
  - Use bulbs of necessary voltage depending on the amount of light required for a specific task
  - Choose the right light for each room and the function of the room
2. Highlight 4 ways of enhancing personal health (4mks)
  - Taking a balanced diet in the required proportions
  - Doing exercises regularly
  - Drinking water
  - Bathing and wearing clean clothes daily
  - Having enough rest and sleep
3. Giving a reason suggest 3 nutrients that should be increased during pregnancy (3mks)
  - Calcium – for development of bones and teeth
  - Iron – proper formation of hemoglobin
  - Roughage – for easy digestion
  - Vitamin D – for body building by aiding absorption of calcium
  - Protein – for foetal growth
  - Vitamin C – help mother body fight infections
  - elp in Absorption of iron in the body
4. With the aid of a diagram outline in procedure of making an overlaid seam (8mks)
  - Take the overlay/top (1/2) part and fold along the fitting line to the wrong side (1/2) and press(1/2)
  - Place the overlay over the underlay(lower garment (1/2) section) matching fitting lines, notches and raw edges (1/2)
  - Pin a tack (1/2) along the fold, remove pins (1/2)
  - Machine close (1/2) to the Fold through 3 layers of fabric
  - Remove tacking and press (1/2)
  - Trim raw edges to 1 cm (1/2)
  - Neaten the (1/2) raw edge
  - Press the (1/2) seam on the Right side and wrong side
1. State 4 reasons for softening hard water for laundry work (4mks)
  - To improve lathering of soap
  - To save on amount of soap/detergent used
  - To save time and energy
  - To avoid discoloration of clothes by scum formed in hard water
  - To prevent roughness on users skin
  - To prevent formation of fur which blocks pipes and boilers
    (4x1)
2. Explain 4 main causes of malnutrition in the country (8mks)
  - Poverty – Lowers the purchasing power for buying various food required by the body resulting to malnutrition
  - Parasites – Infestation by worms reduce the amount of nutrients available for the body e.g. iron resulting to malnutrition
  - Natural calamities – e.g. war, floods, drought reduces food production, distribution and availability resulting to malnutrition
  - Lifestyle – modern lifestyle lead to increased intake of some nutrients e.g. fats, carbohydrates leading to obesity,
  - Food taboos – some beliefs prohibit eating of certain foods thus denying essential nutrients to the people leading to malnutrition
  - Diseases
  - Corruption
    (4x 2)
3. Explain the preparation of attachment of a squared patch pocket (8mks)
  - Press the seam allowance of the pocket sides on the wrong side (1/2) , trim and mitre the two corners
  - Prepare the pocket hem by edge (1/2) stitching the raw edge and tack in position (1/2)
  - Fix the hem with appropriate stitches (1/2) and press the finished pocket
  - Place the pocket on the garment pin (1/2) in the correct positions leaving the pocket mouth open (1/2)
  - Remove the pins (1/2) machine stitch (1/2) close to the fold(1/2)
  - Reinforce (1/2) the top of the pocket by stitching back along the row of machine stiches 1.25-2cm or by triangle of machine(1/2)
  - Remove the tacking’s (1/2) and press the pocket flat(1/2)