IGNOU BCA FST: FOUNDATION COURSE IN SCIENCE AND TECHNOLOGY - JUNE 2003 QUESTION PAPER
BACHELOR IN COMPUTER APPLICATIONS
Term-End Examination
June, 2003
FST: FOUNDATION COURSE IN SCIENCE AND TECHNOLOGY
Time : 3 Hours
Max. Marks : 100
Note : Your answers should be brief. Wherever possible, support your answers with facts and figures.
SECTION A
1. Each question below is followed by a set of three answers, one of which is correct. Write the correct answer. [10]
(i) Which one of the following pairs is correctly matched?
(a) Use of metals - Bronze Age
(b) Making of calendars - Iron Age
(c) Craft of pottery - Stone Age
(ii) The moon has a period of revolution of 2733 days and presents almost the same face towards the earth at all times. Therefore, which of the following is true?
(a) Its period of rotation is 29.5 days
(b) Its period of rotation is 27.33 days
(c) It does not rotate
(iii) The sun will keep on burning like this for approximately
(a) 5 billion years
(b) 25 million years
(c) 20 billion years
(iv) Which of the following innovations led to the Industrial Revolution?
(a) Mechanical clocks
(b) Use of steam powered engine
(c) Telegraph
(iv) Accurate dating of fossils and certain types of rocks is possible with the development of knowledge of
(a) Radioactivity
(b) Fluorescence microscopy
(c) Bio-chemistry
(vi) Ramu has viral fever. He should
(a) Attend his office
(b) Confine to a room
(c) Visit friends
(vii) To trigger off a person’s immune system. He is vaccinated by
(a) Introducing weak infection into his body
(b) Giving him drug
(c) Injecting antibodies in his body
(viii) A nuclear reactor generates
(a) Geothermal energy
(b) Atomic energy
(c) Tidal energy
(ix) Which one of the following statements about nuclear fusion is false?
(a) It can provide us energy for billions of years
(b) The mass of the resulting nucleus is the same as the sum of masses of fusing nuclear.
(c) High temperature and pressure is required to initiate it.
(x) Measuring IQ is really measuring
(a) A persons’s mental ability
(b) A persons’s creativity
(c) A persons’s chronological age
2. Give short answers (in not more than 50 words) of the following questions: [20]
(i) What are the significant features of Caraka-Samhita and Susruta-Samhits?
(ii) State what was the purpose for encouraging research in colonial India in (a) Botany, (b) Medicine.
(iii) What is meant by the terms ‘geocentric’ and ‘heliocentric’?
(iv) Give two reasons for the increasing importance of exploitation of oceanic resources.
(v) Write down the nutrients for food items listed in column I.
Column I Column II
(Food items) (Nutrients)
(a) Roasted gram
(b) Biscuits
(c) Boiled egg
(d) Aerated drink
(vi) What is mixed cropping? Give examples.
(vii) Give two examples where you think that ergonomics has benefitted the user and has improved his/her output.
(ix) List two differences between terrestrial planets and Jovian planets.
(x) Name two infectious and non-infectious diseases each.
SECTION B
Attempt any eight questions. Each question carries equal marks. Limit your answer to 100 words.
1. Describe the evolution of a neutron star. [5]
2. Explain the term ‘conservation of mineral resources’. How would you monitor resource utilization? [5]
3. Describe the pond ecosystem with the help of a labelled diagram. [5]
4. List the non-conventional sources of energy. Explain how these resources can be tapped for production of energy for domestic and industrial use. [5]
5. Explain how vaccination helps to resist diseases. [5]
6. Most food chains are limited to four or five steps. Explain with the help of an example. [5]
7. Discuss the role of hormones for the proper functioning of human body. [5]
8. What is technology forecasting? Give reasons why it is an important area of study. [5]
9. Explain ways of soil management. Why is it necessary? [5]
10. What is a semiconductor? Describe semiconductor devices and their uses. [5]
11. Describe the characteristic features of modern scientific knowledge. [5]
SECTION C
Attempt any three questions. Each question carries equal marks. Limit your answers to around 250 words.
1. Describe two major influences of scientific and technological developments during the last two decades on routine community life around you. Analyse the benefits and the problems that have resulted due to these developments. [10]
2.(a) Explain Darwin’s theory of natural selection. Why was it not accepted by most people of his time? [5]
(b) Name the scientist who disproved the concept of spontaneous generation. Describe the experiment he used to support his concept. [5]
3. List two pollutants each for air, water and soil. What are their effects on our environment? Explain the methods used for their control. [10]
4. What is biotechnology? Describe the main techniques. List any two applications each in the fields of agriculture and medicine [10]
5. With the help of a neatly labelled diagram describe the “feed back” mechanism which checks the loss of water from kidneys in human body. [10]
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