Home Science Paper 1 Questions and Answers - BSJE Mock Exams 2023

• This paper contains 3 sections: A, B and C
• Answer all questions in section A and B and any two questions from section C

                                                                        SECTION A (40 MARKS) (Answer ALL questions)

1. Name four types of scissors. (2mks)
2. Give four vaccines administered to a child through injection. (2mks)
3. Give two roles of the shank in garment construction. (2mks)
4. Outline four methods of seam finishes. (2mks)
5. Give two reasons why food is fortified. (1mk)
6. Give four functions of Thiamine in the body. (2mks)
7. Give two reasons why nylon is commonly used for making brushes. (2mks)
8. Mention two uses of asbestos as a fibre. (2mks)
9. Mention three results of burning test carried out on polyester. (3mks)
10. Differentiate between a cess pool and a soak pit. (2mks)
11. Mention two functions of a fish slice in cookery. (1mk)
12. State three characteristics of a well made dart. (3mks)
13. Give two examples of builders added to detergents during manufacture. (1mk)
14. Give two reasons for using each of the following laundry agents. (2mks)
    1. Bleach
    2. Starch
15. Name any six types of sleeves. (3mks)
16. Give two rules for patching. (2mks)
17. Mention four ways a consumer can overcome inflation as a problem. (2mks)
18. Mention two points to observe when taking body measurements. (2mks)
19. Give two limitations of dry cleaning (1mk)
20. Differentiate between monochromatic and analogous colour schemes. (2mks)
    
                                                            SECTION B (COMPULSORY) (20 MARKS)
21. You are involved in doing some household chores over the weekend. Give the procedure you would use to:-
    1. Thorough clean a refrigerator (7mks)
    2. Launder a nylon night dress. (7mks)
    3. Clean a plastic greasy plate. (5mks)
       
                                            SECTION C (40 MARKS) (Answer any two questions from this section)
22.  
    1. State and explain four advantages of using left over foods. (8mks)
    2. State five factors to consider when working button holes. (4mks)
    3. Explain four reasons that have led to the spread of diseases associated with lifestyle. (8mks)
23.  
    1. Explain the following common problems in pregnancy (8mks)
       1. Varicose veins
       2. Oedema
       3. Constipation
       4. Backache
    2. Describe the working of gathers by hands (include diagrams) (8mks)
    3. State four principles of food preservation. (4mks)
24.  
    1. Discuss four reasons why a mother may be forced to stop breast-feeding. (8mks)
    2. Mention four factors to consider when choosing a washing machine. (4mks)
    3. Describe the preparation of a shirt collar (8mks)

                                                                               MARKING SCHEME

1. Name four types of scissors used in clothing construction. (2mks)
   • Cutting out shears
   • Pinking shears
   • Embroidery scissors
   • Button-hole scissors
   • Paper scissors
2. Give four vaccines administered to a child through injection. (2mks)
   • BCG vaccine
   • DPT
   • Hepatitis B / Influenza type B
   • Measles 
3. Give two roles of the shank in garment construction. (2mks)
   • Accommodate the thickness of the fabric
   • To allow movement of the button between the button and the garment
   • To prevent tearing of the fabric / button
   • To help / eases buttoning
4. Outline four methods of seam finishes. (2mks)
   • Binding
   • Loop stitching
   • Overcastting stitches
   • Machine zigzag
   • Edge stitching on open seams
5. Give two reasons why food is fortified. (1mk)
   • To improve their nutritive value
   • Improve texture
   • Improve flavor
   • Prevent nutritional deficiency disorders
6. Give four functions of Thiamine in the body. (2mks)
   • Release energy from carbohydrates
   • Stimulate growth
   • Promote appetite for food
   • Facilitates proper functioning of the nervous system
   • Prevents the occurrence of Beriberi
7. Give two reasons why nylon is commonly used for making brushes. (2mks)
   • They are strong / durable
   • They are resilient
   • They do not absorb colour and moisture
8. Mention two uses of asbestos as a fibre. (2mks)
   • It is used to make theatre curtains
   • Used to make protective clothing such as overalls and gloves for fire service officers
   • Used as an insulator in manufacturing electrical appliances
9. Mention three results of burning test carried out on polyester. (3mks)
   • On burning it shrinks and melts
   • It emits the smell of celery
   • Leaves behind a hard round bead
10. Differentiate between a cess pool and a soak pit. (2mks)
    • A cess pool is a concrete tank built underground to cater for drainage of one or few homes while a soak pit is dug into the ground then filled with layers of large and small stones then covered with soil.
11. Mention two functions of a fish slice in cookery. (1mk)
    • Used for shallow frying
    • Removing hot foods from liquids
    • Separation of solid food from liquid food
12. State three characteristics of a well made dart. (3mks)
    • Should be stitched from the widest part tapering to nothing
    • Should be finished correctly at the end
    • Should be pressed flat on W.S and R.S
    • Should face the correct side / direction i.e. C.B, C.F
13. Give two examples of builders added to detergents during manufacture. (1mk)
    • Sodium carbonate
    • Borax
    • Sodium sulphate
14. Give two reasons for using each of the following laundry agents. (2mks)
    1. Bleach
       • To remove stains
       • Whiten clothes
       • Disinfect clothes
    2. Starch
       • To make clothes smooth thus dirt resistant
       • To stiffen clothes
       • Give a glossy appearance
15. Name any six typed of sleeves. (3mks)
    • Puffed sleeve
    • Dolman sleeve
    • Bell sleeve
    • Leg of mutton
    • Bishop
    • Raglan
    • Kimono
    • Magyan
16. Give two rules for patching. (2mks)
    • The fabric for patching should match that of the garment in colour, weight, age and fabric content
    • The patch should be inconspicuous unless decorative
    • The shape of the patch should correspond to that of the hole or worn out area
    • The patch should match in grain with the garment
    • The patch should be flat
17. Mention four ways a consumer can overcome inflation as a problem. (2mks)
    • Stock items that do not spoil easily
    • Buy or pay for services which you are certainly going to need in advance
    • Window shop before purchasing
    • Compare prices of alternative goods
    • Use convenience foods where possible
18. Mention two points to observe when taking body measurements. (2mks)
    • The person whose measurements are being taken should wear simple out fit
    • The person should stand upright but relaxed
    • To obtain round measurements always put two fingers between the tape measure and the body
    • Tape measure should move freely
19. Give two limitations of dry cleaning (1mk)
    • It is expensive as liquid solvents are costly
    • The solvents are very volatile and highly inflammable, they can catch fire
    • The solvents are poisonous
20. Differentiate between monochromatic and analogous colour schemes. (2mks)
    • In monochromatic colour scheme, one colour must be the key colour of the whole scheme while for analogous are colours next to each other on the colour wheel.
      
                                                                                   SECTION B
21. You are involved in doing some house hold chores over the weekend. Give the procedure you would use to:-
    1. Thorough clean a refrigerator (7mks)
       • Defrost the refrigerator (½)
       • Check the state of the stored food (½) and discard any that has gone bad (½)
       • Wash the containers (½)
       • Clean the inside and the outside (½)surface using warm soapy water (½)
       • Rinse with a cloth (½) wrung out of warm water and dry (½)
       • Wipe the other containers and shelves to remove smudges (½)
       • Close the refrigerator ( ½) door and dust the outside  to remove any smudges (½)
       • Clean the handles, rinse and dry well (½)
       • Clean all movable parts in the same way (½)
       • Re-arrange the fridge with fresh food (½)
    2. Launder a nylon night dress. (7mks)
       • Soak (½) in cold water for a short time
       • Wring out of the soaking water (½)
       • Wash in warm detergent (½) water using kneading and squeezing (½) method to remove dirt
       • Rinse thoroughly in warm (½) water to remove soap and dirt (½)
       • Final rinse in cold water (½) into which fabric conditioner (½) has been added to get rid of static electrically (½)
       • Drip-dry (½) under shade (½)
       • Use warm iron (½) to remove creases
       • Air to dry completely (½)
       • Fold and store in a clean dry (½) place
    3. Clean a plastic greasy plate. (5mks)
       • Wash in hot soapy (½) water using a scouring pad (½) to remove stains (½)
       • Rinse severally in hot water (½) to remove traces of soap and dirt (½)
       • Final rinse in cold water (½) to freshen (½)
       • Wipe dry (½) with a kitchen cloth (½) to prevent water marks
       • Store in a cupboard (½)
         
                                                                                    SECTION C
22.  
    1. State and explain four advantages of using left over foods. (8mks)
       • It is economical:- cooked food that is left over can be used again
       • It is time saving:- some ingredients which otherwise would take long to cook are quickly served after reheating for a short time e.g. rough cuts of meat
       • It is  energy saving:- a meal is presented without using a lot of fuel
       • It is labour saving:- does not involve preparation which is normally the case for usual food preparation and cooking
       • It is cost saving:- a meal can be produced without involving new purchases especially after a party
    2. State five factors to consider when working button holes. (4mks)
       • Should be the size of the button plus 3mm
       • Start off with a double thread
       • Ensure that one button hole is completed before cutting another
       • Work using button hole stitches
       • Finish off neatly according to the type of fabric
       • Begin working from the furthest end proceeding from left to right
    3. Explain four reasons that can lead to spread of diseases associated with lifestyle. (8mks)
       • Taking meals that are not balanced
       • Eating much convenience foods
       • Ignorance
       • Certain foods are associated with the rich e.g. red/white meat, sugary foods like cakes
       • Much money to spend
       • Some do not want their children to lead the same life style that they led when young
23.  
    1. Explain the following common problems in pregnancy (8mks)
       1. Varicose veins
          • Blood veins become overstretched
          • They appear on the surface of the skin as twisted and dilated
          • Hormone cause veins to relax and release more blood in them
       2. Oedema
          • Swelling caused by fluid moving from inside the blood vessels to the space that surround the body cells
       3. Constipation
          • Movement of intestinal tract is reduced
          • Water re-absorption in the cells is increased
          • Enlarging uterus may crowd the colon causing constipation 
       4. Backache
          • Hormone produced in pregnancy do soften the connective tissues holding the bones together
          • Increasing size of the body parts put strain on the muscle and bones in the lower spinal region
    2. Describe the working of gathers by hands (8mks)
       • Begin by a firm knot to secure the thread √ then work the first row of running stitches 6mm above the fitting line √ throughout the width
       • Leave the thread hanging at the end of the row of running stitches √
       • Work the second row of running stitches 6mm below √ the fitting line and leave the thread hanging at the end√
       • Pull both thread ends together √to draw up the fabric until the required size is achieved√
       • Wind the hanging threads round a pin, forming a figure 8 to secure √ the gathers
    3. State four principles of food preservation. (4mks)
       • Application of heat
       • Removal of moisture
       • Exclusion of oxygen
       • Freezing
       • Adding sugar, salt, acids and chemical preservatives
24.  
    1. Discuss four reasons why a mother may be forced to stop breast feeding. (8mks)
       • Serious illness which may lead to low or no milk production
       • Conception
       • HIV/AIDS in order to protect the child
       • Depression or serious illness leading to drying up of breast milk
       • Separation with child due to work; instability of the government, divorce
       • Death of a child
       • Painful cracked breast
    2. Mention four factors to consider when choosing a washing machine. (4mks)
       • Buy the best quality that can be afforded
       • There should be adequate space for operation and storage
       • Buy a machine that is easy to operate and maintain
       • Buy a machine made of rust proof materials
       • The machine should have instruction manual supplied with it
       • The electrical connections should be in good order
    3. Describe the preparation of a shirt collar (8mks)
       • Cut the collar, under collar and interfacing according to the pattern√
       • Transfer the pattern markings required √
       • Apply the interfacing on the W.S of the collar leaving the seam allowance√
       • Place the collar and the under collar together with the R.S facing√ ½
       • Match raw edges, fitting line and notches
       • Pin and tack along the fitting line leaving the lower edge where the collar is to be attached to the neckline√
       • Remove pins and machine stitch along the tacking√ ½
       • Trim and layer the seam allowance √ ½
       • Snip the curved section and clip the pointed edges √ ½
       • Turn the collar to the R.S and knife edge √ ½
       • Press the collar √ ½
       • Top stitch round the edge for a neat finish and flatness√