UPSC 1995 Prelims – all questions
148 questions · 1995 · answers as per the UPSC key · page 3 of 3
The chemical used as a ‘fixer’ in photography is
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The technique used to transmit audio signals in television broadcasts is
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A parachutist jumps from a height of 5000 metres. The relationship between his falling speed ‘v’ and the distance fallen through ‘d’ is best represented as (four graphs labelled a, b, c, d).
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Which one of the following can be used to confirm whether drinking water contains a gamma-emitting isotope or not?
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The normal temperature of human body on the Kelvin scale is
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When the same note is played on a sitar and a flute, the sound produced can be distinguished from each other because of the difference in
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Assertion (A): A diamond sparkles more than a glass imitation cut to the same shape.
Reason (R): The refractive index of diamond is less than that of glass. In the context of the above two statements, which one of the following is correct?
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Who among the following anticipated Newton by declaring that all things gravitate to the earth?
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Optical fibre works on the principle of
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Suppose a rocketship is receding from the earth at a speed of 2⁄10th the velocity of light. A light in the rocketship appears blue to the passengers on the ship. What colour would it appear to an observer on the earth?
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Which one of the following pairs of materials serves as electrodes in chargeable batteries commonly used in devices such as torchlights, electric shavers, etc.?
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Cryogenic engines find applications in
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An air bubble in water will act like a
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The difference between a nuclear reactor and an atomic bomb is that
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Which one of the following fuels causes minimum environmental pollution?
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Zero was invented by
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Which one of the following sets is correctly matched?
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A person with ‘AB’ blood group is sometimes called a universal recipient because of the
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Which one of the following is a membrane that protects the developing embryo from desiccation?
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Which one of the following antimicrobial drugs is suitable for treatment of both tuberculosis and leprosy?
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Most of the desert plants bloom during night time because
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The only snake that builds a nest is
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Which of the following elements are present in all proteins? I. Carbon II. Hydrogen III. Oxygen IV. Nitrogen
Select the correct answer from the codes given below:
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Which one of the following hormones contains iodine?
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“By weaving threads of physics, chemistry and biology into a rich tapestry, this remarkable scientist provided a unifying molecular view of the world... He touted the wonderful properties of Vitamin C first as a cure of common cold and later as a preventive agent against cancer.” One of science’s major figures of all time referred to above is
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“The final Agent Orange raid in Vietnam took place in 1970…. areas have begun to bloom again. But 19 years after the war’s end, it seems plain that Agent Orange is killing and maiming human beings, something it never intended to do. The apparent toxic fall-out from those clouds ... is a crop of human miseries including cancers, miscarriages and birth defects — that may persist for decades.” The offensive substance referred to in the above quotation is
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“It begins as a single cell and grows into a merciless disease that claims millions of lives year after year. But scientists are steadily unlocking its mysteries, and the fight against it may now have reached a dramatic turning point. New discoveries promise better therapies and hope in the war against ...” The disease referred to in the above quotation is
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‘Yellow cake’, an item of smuggling across borders is
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Consider the series given below: 4/12/95, 1/1/96, 29/1/96, 26/2/96... The next term of the series is
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In track meets both 100 yards and 100 metres are used as distances. By how many metres is 100 metres longer than 100 yards?
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Examine the following statements: I watch TV only if I am bored.
I am never bored when I have my brother’s company. Whenever I go to the theatre, I take my brother along.
Which one of the following conclusions is valid in the context of the above statements?
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In the given diagram, circle A represents teachers who can teach Physics, circle B represents teachers who can teach Chemistry and circle C represents those who can teach Mathematics. Among the regions marked p, q, r, s, t, u and v, the one which represents teachers who can teach Physics and Mathematics but not Chemistry, is
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Seven men, A, B, C, D, E, F and G are standing in a queue in that order. Each one is wearing a cap of a different colour like violet, indigo, blue, green, yellow, orange and red. D is able to see in front of him green and blue but not violet. E can see violet and yellow, but not red. G can see caps of all colours other than orange. If E is wearing an indigo-coloured cap, then the colour of the cap worn by F is
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A person travelled from one place to another at an average speed of 40 kilometres/hour and back to the original place at an average speed of 50 kilometres/hour. What is his average speed in kilometres/hour during the entire roundtrip?
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The value of (a – m)(b – m) … (y – m)(z – m) is
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A rectangular sump of dimensions 6 m × 5 m × 4 m is to be built by using bricks to make the outer dimension 6.2 m × 5.2 m × 4.2 m. Approximately how many bricks of size 20 cm × 10 cm × 5 cm are required to build the sump for storing water?
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Consider the figure given below: PQRS is a square of side 1 unit and Q, S are the centres of the two circles. The area of the shaded portion is
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A thief running at 8 km/hr is chased by a policeman whose speed is 10 km/hr. If the thief is 100 metres ahead of the policeman, then the time required for the policeman to catch the thief will be
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A student has 60% chance of passing in English and 54% chance of passing in both English and Mathematics. What is the percentage probability that he will fail in Mathematics?
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One of the drawers is opened at random and a coin is drawn. It is found to be a silver coin. What is the probability that the other coin in the drawer is a gold coin?
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In the Cartesian plane four points P, Q, R, S have coordinates (1, 1), (4, 2), (4, 4) and (1, 4). The area of the quadrilateral PQRS is
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Consider the diagram given below: (Pie-chart showing family expenditure with segments labelled T: Transport, Ec: Education of children, H: Housing, C: Clothing, F: Food, S: Savings, O: Others.) From the diagram shown it would be right to conclude that
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Consider the table given below providing details of traffic volume per hour for four locations (showing total traffic volume, % of heavy vehicles, average noise level in dB(A) and noise-pollution level in dB(A)). When the total traffic volume is the same, the factor(s) which affect(s) the noise-pollution level is/are
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The price fluctuations of 4 scrips in a stock market in the four quarters of a year are shown in the table below. Four different investors had the following portfolios of investment in the four companies throughout the year: Investor 1: 10 of A, 20 of B, 30 of C and 40 of D Investor 2: 40 of A, 10 of B, 20 of C and 30 of D Investor 3: 30 of A, 40 of B, 10 of C and 20 of D Investor 4: 20 of A, 30 of B, 40 of C and 10 of D In the light of the above, which one of the following statements is correct?
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X and Y are two variables whose values at any time are related to each other as shown in Fig. (i). X is known to vary periodically with reference to time as shown in Fig. (ii).
Which of the following curves depicts correctly the dependence of Y on time?
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Out of a total of 120 musicians in a club, 5 % can play all the three instruments—guitar, violin and flute. It so happens that the number of musicians who can play any two and only two of the above instruments is 30. The number of musicians who can play the guitar alone is 40. What is the total number of those who can play violin alone or flute alone?
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Which of the following can be inferred from the statement that “Either John is stupid or John is lazy”? I. John is lazy / therefore, John is not stupid. II. John is not lazy / therefore, John is stupid. III. John is not stupid / therefore, John is lazy. IV. John is stupid / therefore, John is not lazy.
Choose the correct answer from the codes given below:
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A person earns Rs 2000 per month over and above his salary as additional charge allowance. However, 30 % of this additional income will be deducted as additional income tax at source. If the person would deposit Rs 1000 per month in a long-term saving fetching 12 % interest, his tax liability on the additional allowance would reduce to 10 %. What is the effective interest for this person for money invested in the long-term savings scheme?