UPSC Prelims Solved Papers — Practice & Master

2651

One local and another express train were proceeding in the same direction on parallel tracks at 29 km/h and 65 km/h respectively. The driver of the former noticed that it took exactly 16 seconds for the faster train to pass by him. What is the length of the faster train?

UPSC Prelims 1998 Aptitude

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2652

A square pond has 2m sides and is 1m deep. If it is to be enlarged, the depth remaining the same, into a circular pond with the diagonal of the square as diameter, then what would be the volume of earth to be removed?

UPSC Prelims 1998 Aptitude

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2653

Which one of the following satisfies the relationship Dda : aDD :: Rrb : ?

UPSC Prelims 1998 Aptitude

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2654

Out of the three annual examinations, each with a total of 500 marks, a student secured average marks of 45% and 55% in the first and second annual examinations. To have an overall average of 60%, how many marks does the student need to secure in the third annual examination?

UPSC Prelims 1998 Aptitude

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2655

If 15 pumps of equal capacity can fill a tank in 7 days, then how many extra pumps will be required to fill the tank in 5 days?

UPSC Prelims 1998 Aptitude

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2656

A man purchases two clocks A and B at a total cost of Rs. 650. He sells A with 20% profit and B at a loss of 25% and gets the same selling price for both the clocks. What are the purchasing prices of A and B respectively?

UPSC Prelims 1998 Aptitude

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2657

$LMNOP$ is a semi-circle with centre at $R$ and diameter $LP$. $LSR$ and $RQP$ are also semi-circles with centres at $T$ and $U$ and diameters $LR = RP = \frac{1}{2}LP$. The ratio of perimeters (arc lengths along the boundaries) of $LMNOP$ and $LSRQP$ is

UPSC Prelims 1998 Aptitude

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2658

The above table indicates the performance of India in rice and wheat production from 1950–51 to 1995–96. Which of the following conclusions arrived at from the above table would be valid?

I. Record production of rice as well as wheat has been in 1994–95.
II. The ratio of wheat to rice production seems to have steadily increased over the years.
III. Wheat has not been popular among the Indian population before 1980.
IV. India became self-sufficient in rice and wheat only after 1990.

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UPSC Prelims 1998 Indian Economy

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2659

The misery index is the sum of a country's unemployment and inflation rate. The higher the index, the more miserable is the country to live in. The figure given below is the Misery Index for various countries in Europe. Which of the following conclusions can be drawn from the misery index given above?

I. Britain is the most miserable country to live in.
II. The inflation rate in Spain is less than that in Belgium and Britain.
III. Italy and France seem to have almost identical unemployment rate.
IV. The higher the misery index, the higher the inflation rate.

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UPSC Prelims 1998 Indian Economy

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2660

Assertion (A): Sodium metal is stored under kerosene.
Reason (R): Metallic sodium melts when exposed to air.

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UPSC Prelims 1998 General Science

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2661

Assertion (A): Phenyl is used as a household germicide.
Reason (R): Phenyl is a phenol derivative and phenol is an effective germicide.

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UPSC Prelims 1998 General Science

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2662

Assertion (A): The temperature of a metal wire rises when an electric current is passed through it.
Reason (R): Collision of metal atoms with each other releases heat energy.

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UPSC Prelims 1998 General Science

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2663

Assertion (A): Formic acid is a stronger acid than acetic acid.
Reason (R): Formic acid is an organic acid.

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UPSC Prelims 1998 General Science

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2664

Match List I with List II and select the correct answer using the codes given below the lists:

List I (Common Name)	List II (Chemical Name)
I. Blue vitriol	A. Sodium bicarbonate
II. Epsom salt	B. Sodium hydroxide
III. Baking soda	C. Magnesium sulphate
IV. Caustic soda	D. Copper sulphate

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UPSC Prelims 1998 General Science

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2665

One Astronomical Unit is the average distance between

UPSC Prelims 1998 General Science

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2666

The major chemical compound found in human kidney stones is

UPSC Prelims 1998 General Science

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2667

The complete conversion of glucose in the presence of oxygen into carbon dioxide and water with release of energy is called

UPSC Prelims 1998 General Science

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2668

Ergotism is due to consumption of

UPSC Prelims 1998 General Science

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2669

Which one of the following statements regarding starch and cellulose is not correct?

UPSC Prelims 1998 General Science

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2670

A tree species in Mauritius failed to reproduce because of the extinction of a fruit-eating bird. Which one of the following was that bird?

UPSC Prelims 1998 Environment

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2671

Match List I with List II and select the correct answer using the codes given below the lists:

List I (Biological Theory / Concept)	List II (Scientist / Proposer)
I. Theory of Mutation	A. Beadle and Tatum
II. Theory of Evolution	B. Jacob and Monod
III. One gene one enzyme hypothesis	C. Darwin
IV. Operon concept	D. De Vries

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UPSC Prelims 1998 General Science

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2672

Match List I with List II and select the correct answer using the codes given below the lists:

List I (Plant Structure / Product)	List II (Plant Part / Origin)
I. Fruit	A. Ovule
II. Seed	B. Leaf
III. Wood	C. Stem
IV. Starch	D. Ovary

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UPSC Prelims 1998 General Science

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2673

Match the names of outstanding Indian scientists given in List I with area of their specialised work given in List II and select the correct answer using the codes given below the lists:

List I (Scientist)	List II (Specialisation)
I. Dr. Raja Ramanna	A. Thermodynamics and Astrophysics
II. Dr. M.S. Swaminathan	B. Nuclear Physics
III. Prof. U.R. Rao	D. Space Research
IV. Prof. Meghnad Saha	E. Agricultural Sciences

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UPSC Prelims 1998 Science & Tech

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2674

Which one of the following types of micro-organisms is most widely used in industries?

UPSC Prelims 1998 General Science

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2675

Match List I with List II and select the correct answer using the codes given below the lists:

List I (Special Characteristic)	List II (Name of Planet)
I. Farthest planet from the Sun (in 1998 classification)	A. Mercury
II. Largest planet of the solar system	B. Venus
III. Planet second from the Sun in the solar system	C. Jupiter
IV. Planet nearest to the Sun	D. Pluto

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UPSC Prelims 1998 Physical Geography

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