CGPSC MAINS - 2015 EXAM-CGM-15 Q.P. No. : 41018 …

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CGPSC MAINS - 2015

To be filled by Candidates by Black/Blue Ball-Point pen only.

Roll No.

Declaration : I have read and understand the directions given below andtotally agree with them.

Signature of Candidate ................................................. Date .....................

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INSTRUCTION FOR THE CANDIDATES

1. All Questions are compulsory.

2. Extra time of ten minutes will be given for carefullyreading and understanding instructions as well as formaking required entries in Question Paper andQuestion Cum Answer booklet(QAB).

3. Before making any entry on question paper and QABcandidate should count and check the no. of pagesand if any discrepancy is seen then invigilator shouldbe informed immediately for another copy of QuestionPaper/QAB.

4. Each entry on Question Paper and QAB should bedone with Black/Blue Ball-Point Pen .

5. In Hindi/English Format of question some minorspelling/other mistake in either one of language willnot be considered objectionable as it is expected thatcandidates being graduate can percept and understandthat. No applications regarding the same will beentertained by the Commission.

6. Uses of Calculator, Log Tables, Mobile Phones, Pagersand any other type of communication or calculatingdevices are strictly prohibited and punishable.

7. Rough Work can be done only on last page of QuestionAnswer Booklet.

Examination Centre code

EXAM-CGM-15

Question Paper

SUBJECT– SCIENCE, TECHNOLOGY AND ENVIRONMENT (SUBJECT CODE–04)

Maximum Marks–200 Number of Pages in Number of Questions in Time–03:00 HoursQuestion Paper : 6 Question Paper : 40

Q.P. No. : 41018


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CGPSC MAINS - 20151

SECTION – 1

1.

Explain the effect of temperature, pressure and concentration on the manufacture of ammonia.

2.

Write the structure and uses of Teflon polymer.

3.

Define alloy and give two examples.

4.

Define exothermic and endothermic with suitable examples.

1.

Explain oersted experiment.

2.

What is meant by electrical potential ? State whether it is scaler or vector.

3.

Write four properties of an ideal fuel.

4.

Mention two uses of convex mirror.

1.

Define uremia.

2.

Define chromosome theory of heredity.

3. CO2

What is CO2 compensation point in photosynthesis ?

4.

Where is thyroid gland located in human being ? Describe the hormone secreted by it and its control.

1.

What are the advantages of using organic fertilizers over chemical fertilizer.


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CGPSC MAINS - 20152.

Write the names of four high level languages of computer programming.

3.

What is Mangalyan mission ?

4.

(i) (ii)

(iii) (iv)

Write down the full form of following :

(i) USB (ii) HTTP

(iii) PDF (iv) DPI

1.

What are endemic species ?

2.

What are Seed Banks ?

3.

Define Global Warming.

4.

Define Biodiversity.

2SECTION – 2

5.

What is bleaching powder ? Give its preparation and use.

6.

Write the chemical formula of baking soda and give its method of preparation with chemical equation.

5.

What is meant by power of accommodation of the eye ? For normal vision, what is the distance of far point and nearpoint from the human eye.

6.

Mention four differences between primary and secondary cell.


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CGPSC MAINS - 2015

5.

Describe briefly the mechanism of double fertilization found in plants.

6.

What is holozoic nutrition ? What type of nutrition method is found in protozoans and spiders.

5.

What are the uses of I.R.S. data in agriculture ?

6.

Give a brief account of nuclear reactor.

5.

Describe about red data book

6.

Write about four reasons for Biodiversity loss in hot spots.

3SECTION – 3

7.

Describe the position of alkali metals and alkaline earth metals in the periodic table. Comment on the nature of theiroxides and hydroxides. Explain the diagonal relationship between lithium and magnesium.

7.

Explain electric power and energy consumed in electric circuit with their S.I. unit. What is one kilowatt hour (1 unit)energy ?

7.

Write about source and function of any two of the following phytohormones :

Auxins, Gibberellins, Cytokinins.


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CGPSC MAINS - 2015

7.

Give a brief account about INSAT.

7.

Explain the green family concept in detail.

4SECTION – 4

8. a)

a) Describe in detail, four uses of nuclear reactor.

b)

b) What is meant by cathode rays ? How can they be produced ? Write six characteristics of it.

8.

C3 C

4

Write notes on the following :

a) Reflex action and its mechanism

b) C3 and C4 cycles in photosynthesis.

8.

Write detailed account of the following :

A)

A) Population Explosion and Family Welfare Programme.

B)

B) Causes and hazardous effects of Earth Quakes.


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CGPSC MAINS - 2015

5SECTION – 5

8. a)

a) Give the laboratory method of preparation of hydrogen gas. Describe the isotopes of hydrogen gas. Give thedifference and uses of isotopes of hydrogen gas.

b)

b) Write names of two important ores of iron and describe its method of extraction giving chemical equations.

c)

i) ii) iii)

c) What do you mean by polymer and polymerisation ? Give the method of preparation and structure of following

i) Rubber (ii) PVC (iii) Polythene

d)

i) PCl5 PCl3 + Cl2 – Q ii) 2SO2 + O2 2SO3 + Q

d) What do you mean by chemical equilibrium ? Describe its characteristics. Explain the effect of pressure, temperature and concentration on the equilibrium of the following reactions :

i) PCl5 PCl3 + Cl2 – Q ii) 2SO2 + O2 2SO3 + Q

8.

a) Describe pesticide resistance and its management.

b) Give a brief account of super computer

c) Discuss in brief about the national policy of science and technology.

Documents

CGPSC MAINS - 2015 EXAM-CGM-15 Q.P. No. : 41018 …