NBSE Class 9 Question Paper 2020 Home Science

Total number of printed pages : 3 NB-N/HS/1
2020
CLASS-IX
HOME SCIENCE
Total marks : 70 Time : 3 hours

General instructions :
i) The question paper consists of 32 questions.
ii) Marks allocated to every question are indicated against it.
N.B: Check that all pages of the question paper is complete as indicated on the top left side.

Choose the correct answer from the given alternatives:

1. A restricted form of family where only parents and children live together
independently is 1
(a) joint family (c) extended family
(b) closed family (d) nuclear family

2. A gram of protein gives ______ calories of energy. 1
(a) 4 (c) 8
(b) 6 (d) 10

3. Which vitamin is also known as ‘appetizer vitamin’? 1
(a) Vitamin C (c) Vitamin B2
(b) Vitamin B1 (d) Vitamin D

4. In which method, the food is put in a closed container and immersed in a bigger
vessel containing boiling water? 1
(a) Direct steaming (c) Pressure cooking
(b) Indirect steaming (d) Roasting

5. Which chemical preservative is used in the preservation of jam? 1
(a) Sodium benzoate (c) Citric acid
(b) Potassium - metabisulphite (d) Tartaric acid

6. Learning to adjust in a group and work as a team and develop leadership
qualities are 1
(a) physical functions (c) psychological functions
(b) social functions (d) recreational functions

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7. Bore hole latrines should be _______ away from drinking water like wells etc. 1
(a) 40-50 m (c) 30-40 m
(b) 60-70 m (d) 20-35 m

8. Which treatment should be given for bruises where bleeding occurs under the
skin? 1
(a) Milk and water solution can be poured to ease the pain
(b) Cool the area with an ice pack
(c) Wrap the patient in a blanket
(d) Immerse the patient in water tub

9. Nylon is an example of 1
(a) regenerated fibre (c) metal fibre
(b) synthetic fibre (d) blended fibre

10. Wood + terrylene is combined to make 1
(a) polycat (c) terrywool
(b) terrysilk (d) terricot

Answer the following questions in 20-30 words :
11. How does western culture affect change in family pattern? 2
12. Write two demerits of large family. 2
13. Define food. How are they classified? 2
14. Write two functions of protein. 2
15. Why is steam cooking considered the best method of cooking? 2
16. How does yeast act on food products? 2
17. Write any two advantages of sun drying of food. 2
18. What is the importance of sanitation at home? 2
19. Give any four advantages of recycling. 2
20. What first-aid must one exercise in case of electric shock? 2
21. Differentiate between knitting and felting. 2
22. What is yarn? Why is twisting done in making a yarn? 2

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Answer the following questions in 40-60 words :
23. What does the deficiency of vitamin C cause? Write one function of vitamin C.
Name two sources of vitamin C. 3
24. What is shallow frying? Give two precautions to be taken during deep
frying. 3
25. Describe the methods used to prevent or delay decomposition by microbes on
food. 3
26. Write any two methods of preserving fruits and vegetables with the help of
preservatives. 3
27. Write any three recreational functions of a home. 3
28. What precautions must one exercise while using LPG? 3
29. Write a note on the three types of natural fibres. 3

Answer the following questions in 80-100 words :
30. Explain the expanding stage and its various sub-stages of family life. 5
31. Discuss the points to be considered to select the method of cooking for any food
product. 5
32. What precautions should one take to prevent bathroom accidents? Give five
points. 5

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