UPSC 1996 Prelims – all questions

147 questions · 1996 · answers as per the UPSC key · page 3 of 3

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Of the four landmarks in medical history given below, which one was the first to take place?

(a) Organ transplant
(b) Bypass surgery
(c) Test-tube baby
(d) Plastic surgery
Show answer
Answer: (d) Plastic surgery

The nutritional deficiency condition that needs to be given top priority for remedial action in India today is

(a) Scurvy
(b) Rickets
(c) Xerophthalmia
(d) Pellagra
Show answer
Answer: (c) Xerophthalmia

Living organisms require at least 27 elements, of which 15 are metals. Among these, those required in major quantities include

(a) Potassium, Manganese, Molybdenum & Calcium
(b) Potassium, Molybdenum, Copper & Calcium
(c) Potassium, Sodium, Magnesium & Calcium
(d) Sodium, Magnesium, Copper & Manganese
Show answer
Answer: (c) Potassium, Sodium, Magnesium & Calcium

Match List I with List II

and select the correct answer using the codes given below the lists:

List I I. Vitamin II. Enzyme III. Hormone IV. Protein

List II A. Pepsin B. Carotene C. Keratin D. Progesterone

(a) I – A, II – B, III – C, IV – D
(b) I – B, II – A, III – D, IV – C
(c) I – B, II – A, III – C, IV – D
(d) I – A, II – B, III – D, IV – C
Show answer
Answer: (b) I – B, II – A, III – D, IV – C

Physico-chemical characteristics of water in water sources undergo changes due to

(a) aquatic macrophytes
(b) aquatic fungi
(c) effluents
(d) evapotranspiration
Show answer
Answer: (c) effluents

Ecologists have so far found and certified a large number of species in the plant and animal kingdoms. In terms of members, the largest group identified so far is among the

(a) Fungi
(b) Plants
(c) Insects
(d) Bacteria
Show answer
Answer: (c) Insects

It is possible to produce seedless tomato fruits by

(a) applying trace elements in tomato fields
(b) spraying mineral solution on plants
(c) spraying hormones on flowers
(d) applying fertilisers containing radioactive elements
Show answer
Answer: (c) spraying hormones on flowers

Which of the following are associated with diabetes mellitus, a common disease in adults? I. Higher sugar level in blood II. Lower sugar level in blood III. Lower insulin level in blood IV. Higher insulin level in blood

Select the correct answer using the codes given below:

(a) I and IV
(b) I and II
(c) II and III
(d) I and III
Show answer
Answer: (d) I and III

Consider the following statements: AIDS is transmitted — I. By sexual intercourse. II. By blood transfusion. III. By mosquitoes and other blood-sucking insects. IV. Across the placenta. Of these statements —

(a) I, II and III are correct
(b) I, II and IV are correct
(c) I, III and IV are correct
(d) I and III are correct
Show answer
Answer: (b) I, II and IV are correct

Which of the following would lead to ‘malnutrition’? I. Overnutrition II. Undernutrition III. Imbalanced nutrition

Select the correct answer using the codes given below:

(a) II alone
(b) II and III
(c) I and III
(d) I, II and III
Show answer
Answer: (d) I, II and III

People drinking water from a shallow hand pump are likely to suffer from all of the following diseases, except

(a) Cholera
(b) Typhoid
(c) Jaundice
(d) Fluorosis
Show answer
Answer: (d) Fluorosis

Besides proteins and carbohydrates, other elements of nutritional value found in milk include

(a) calcium, potassium and iron
(b) calcium and potassium
(c) potassium and iron
(d) calcium and iron
Show answer
Answer: (b) calcium and potassium

I. ‘A’ stood first in the race. II. ‘C’ led all the way.

III. ‘D’ ran faster than others in the later part of the race. Of these statements

(a) I and III are false and II is true
(b) I and II are false and III is true
(c) I and III are true and II is false
(d) I is true and II and III are false
Show answer
Answer: (b) I and II are false and III is true

When an air bubble at the bottom of a lake rises to the top, it will

(a) increase in size
(b) decrease in size
(c) maintain its size
(d) flatten into a disk-like shape
Show answer
Answer: (a) increase in size

When a mirror is rotated by an angle of θ, the reflected ray will rotate by

(a) 0°
(b) θ / 2
(c) θ
(d) 2θ
Show answer
Answer: (d) 2θ

A truck, a car and a motor cycle have equal kinetic energies. If equal stopping ...

(a) x > y > z
(b) x < y < z
(c) x = y = z
(d) x 4y 8z
Show answer
Answer: (a) x > y > z

A liquid is flowing in a streamlined manner through a cylindrical pipe. Along a section containing the axis of the pipe, the flow profile will be

(a) as shown in figure (a)
(b) as shown in figure (b)
(c) as shown in figure (c)
(d) as shown in figure (d)
Show answer
Answer: (d) as shown in figure (d)
This question uses a table or figure from the original paper that is not reproduced here.

The variation of displacement (d) with time (t) in the case of a particle falling freely under gravity from rest is correctly represented by which of the following graphs?

(a) graph (a)
(b) graph (b)
(c) graph (c)
(d) graph (d)
Show answer
Answer: (a) graph (a)
This question uses a table or figure from the original paper that is not reproduced here.

Total internal reflection can take place when light travels from

(a) diamond to glass
(b) water to glass
(c) air to water
(d) air to glass
Show answer
Answer: (a) diamond to glass

Assertion (A): Transformer is useful for stepping up or stepping down voltages.

Reason (R): Transformer is a device used in D.C. circuits. In the context of the above two statements, which one of the following is correct?

(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not a correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Show answer
Answer: (c) A is true but R is false.

Domestic electrical wiring is basically a

(a) series connection
(b) parallel connection
(c) combination of series and parallel connections
(d) series connection within each room and parallel connection elsewhere
Show answer
Answer: (b) parallel connection

Consider the following statements: At the present level of technology available in India, solar energy can be conveniently used to I. Supply hot water to residential buildings. II. Supply water for minor irrigation projects. III. Provide street lighting. IV. Electrify a cluster of villages and small towns. Of these statements

(a) I, II, III and IV are correct
(b) I and IV are correct
(c) I and III are correct
(d) I, II and III are correct
Show answer
Answer: (d) I, II and III are correct

A simple machine helps a person doing

(a) less work.
(b) the same amount of work with lesser force.
(c) the same amount of work.
(d) the same amount of work much faster.
Show answer
Answer: (b) the same amount of work with lesser force.

Consider the following statements: A person in a spaceship located half-way between the earth and the sun will notice that the I. Sky is jet black. II. Stars do not twinkle. III. Temperature outside the spaceship is much higher than that on the surface of the earth. Of these statements

(a) Only III is correct
(b) I and II are correct
(c) I and III are correct
(d) I, II and III are correct
Show answer
Answer: (b) I and II are correct

‘Diamond Ring’ is a phenomenon observed

(a) at the start of a total solar eclipse
(b) at the end of a total solar eclipse
(c) only along the peripheral regions of the totality trail
(d) only in the central regions of the totality trail
Show answer
Answer: (b) at the end of a total solar eclipse

The alpha particle carries two positive charges. Its mass is very nearly equal to that of

(a) two protons
(b) an atom of helium
(c) sum of masses of two positrons and two neutrons
(d) two positrons as each positron carries a single positive charge
Show answer
Answer: (b) an atom of helium

The offending substance in the liquor tragedies leading to blindness, etc. is

(a) ethyl alcohol
(b) amyl alcohol
(c) benzyl alcohol
(d) methyl alcohol
Show answer
Answer: (d) methyl alcohol

Which one of the following elements is alloyed with iron to produce steel which can resist high temperatures and also have high hardness and abrasion resistance?

(a) Aluminium
(b) Chromium
(c) Nickel
(d) Tungsten
Show answer
Answer: (d) Tungsten

Match List I (Physiological processes) with List II (Cell organelles) and select the correct answer by using the codes given below the lists:

List I I. Photosynthesis II. Mineral uptake III. Respiration IV. Protein Synthesis

List II A) Plasma membrane B) Chloroplast C) Mitochondria D) Ribosomes

Codes:

(a) I-A, II-B, III-C, IV-D
(b) I-A, II-B, III-D, IV-C
(c) I-B, II-A, III-C, IV-D
(d) I-B, II-A, III-D, IV-C
Show answer
Answer: (c) I-B, II-A, III-C, IV-D
UPSC 1996 · Q131 · CSAT › Logical Reasoning · Save

Examine the following statements:

I. George attends Music classes on Monday. II. He attends Mathematics classes on Wednesday. III. His Literature classes are not on Friday. IV. He attends History classes on the day following the day of his Mathematics classes. V. On Tuesday, he attends his Sports classes. If he attends just one subject in a day and his Sunday is free, then he is also free on

(a) Monday
(b) Thursday
(c) Saturday
(d) Friday
Show answer
Answer: (d) Friday
UPSC 1996 · Q132 · CSAT › Quantitative Aptitude · Save

Consider the following figures: (i) a rectangle 4 cm × 9 cm (ii) a square of side 6 cm

(iii) a right-angled triangle with base 8 cm and height 9 cm

Which one of the following conclusions can be drawn from these figures?

(a) The areas of the three figures are all different
(b) The areas of all the three figures are equal
(c) The perimeters of the three figures are equal
(d) The perimeters of figures I and II are equal
Show answer
Answer: (b) The areas of all the three figures are equal
UPSC 1996 · Q134 · CSAT › Quantitative Aptitude · Save

In an accurate clock, over a period of 2 hours 20 minutes, the minute hand will move over

(a) 520°
(b) 320°
(c) 840°
(d) 140°
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Answer: (c) 840°
UPSC 1996 · Q135 · CSAT › Logical Reasoning · Save

Two important characteristics of a hypothesis are that it should be testable and that it should be stated in a manner that it can be refuted.

Which one of the following hypotheses fulfils these characteristics?

(a) Intelligent persons have good memory
(b) Some birds are animals
(c) Some businessmen are dishonest
(d) All men are mortal
Show answer
Answer: (a) Intelligent persons have good memory
UPSC 1996 · Q136 · CSAT › Quantitative Aptitude · Save

If the price of a television set is increased by 25%, then by what percentage should the new price be reduced to bring the price back to the original level?

(a) 15%
(b) 25%
(c) 20%
(d) 30%
Show answer
Answer: (c) 20%
UPSC 1996 · Q137 · CSAT › Data Interpretation · Save

The given pie charts show the proportion of literates and illiterates in a country, in the year 1970 and 1990 and also the proportion of males (M) and females (F) among the literates.

Which one of the following statements can be said to be beyond any doubt?

(a) In 1970 has of the illiterates were women (females)
(b) The proportion of literate males to the total population of males remained the same over the years
(c) Male literacy did not improve over this period
(d) The ratio of female literates to male literates improved significantly over this period
Show answer
Answer: (d) The ratio of female literates to male literates improved significantly over this period
UPSC 1996 · Q138 · CSAT › Quantitative Aptitude · Save

If A = x² − y², B = 20 and x + y = 10, then

(a) A is greater than B
(b) B is greater than A
(c) A is equal to B
(d) It is not possible to compare A and B as the data provided is inadequate
Show answer
Answer: (d) It is not possible to compare A and B as the data provided is inadequate
UPSC 1996 · Q139 · CSAT › Logical Reasoning · Save

Six roads lead to a country. They may be indicated by letters X, Y, Z and digits 1, 2, 3. When there is storm, Y is blocked. When there are floods X, 1 and 2 will be affected. When road 1 is blocked, Z also is blocked. At a time when there are floods and a storm also blows, which road(s) can be used?

(a) Z and 2
(b) Only Z
(c) Only 3
(d) Only Y
Show answer
Answer: (c) Only 3

The changing composition of the export trade is indicative of structural transformation of Indian economy in favour of modernisation. The best indicator of the trend is the

(a) relative share of petroleum products in exports
(b) decline in the share of agricultural products in exports
(c) constant share of ores and minerals in exports
(d) increase in the share of manufactured products in exports
Show answer
Answer: (d) increase in the share of manufactured products in exports
UPSC 1996 · Q141 · CSAT › Logical Reasoning · Save

Which one of the following Venn diagrams correctly illustrates the relationship among the classes: Carrot, Food, Vegetable?

(a) diagram (a)
(b) diagram (b)
(c) diagram (c)
(d) diagram (d)
Show answer
Answer: (a) diagram (a)
This question uses a table or figure from the original paper that is not reproduced here.
UPSC 1996 · Q142 · CSAT › Quantitative Aptitude · Save

When the frequency distribution is normal

(a) median, mode and mean are all different from one another
(b) mean, mode and median are identical
(c) mean is greater than mode
(d) mean is greater than median
Show answer
Answer: (b) mean, mode and median are identical
UPSC 1996 · Q143 · CSAT › Logical Reasoning · Save

In the given figure, the triangle represents girls, the square represents sportspersons and the circle represents coaches. The portion in the figure which represents girls who are sportspersons but not coaches is the one labelled

(a) A
(b) B
(c) D
(d) E
Show answer
Answer: (b) B
This question uses a table or figure from the original paper that is not reproduced here.
UPSC 1996 · Q144 · CSAT › Logical Reasoning · Save

The next pair of letters in the series AZ, CX, FU, ...... is

(a) JQ
(b) KP
(c) IR
(d) IV
Show answer
Answer: (a) JQ
UPSC 1996 · Q145 · CSAT › Logical Reasoning · Save

Mouse is to cat as fly is to

(a) rat
(b) animal
(c) spider
(d) horse
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Answer: (c) spider
UPSC 1996 · Q147 · CSAT › Quantitative Aptitude · Save

The average of X1, X2 and X3 is 14. Twice the sum of X2 and X3 is 30. What is the value of X1?

(a) 20
(b) 27
(c) 16
(d) 12
Show answer
Answer: (b) 27
UPSC 1996 · Q148 · CSAT › Quantitative Aptitude · Save

A rectangle has a perimeter of 50 metres. If its length is 13 metres more than its breadth, then its area is

(a) 124 m²
(b) 144 m²
(c) 114 m²
(d) 104 m²
Show answer
Answer: (c) 114 m²
UPSC 1996 · Q149 · CSAT › Quantitative Aptitude · Save

Two packs of cards are thoroughly mixed and shuffled and two cards are drawn at random, one after the other. What is the probability that both of them are Jacks?

(a) 1/13
(b) 2/13
(c) 7/1339
(d) 1/169
Show answer
Answer: (c) 7/1339
UPSC 1996 · Q150 · CSAT › Logical Reasoning · Save

A man starts walking in the north-easterly direction from a particular point. After walking a distance of 500 metres, he turns southward and walks a distance of 400 metres. At the end of this walk he is situated

(a) 300 metres north of the starting point
(b) 100 metres north-east of the starting point
(c) 300 metres east of the starting point
(d) 100 metres north of the starting point
Show answer
Answer: (c) 300 metres east of the starting point