టీజీపీఎస్సీ గ్రూప్-1 ప్రిలిమ్స్ 1987

140 ప్రశ్నలు, ప్రతిదానికి అధికారిక సమాధానం మరియు వివరణ.

ఒకే ప్రశ్న పలు సంవత్సరాల్లో వస్తే, మొదటిసారి అడిగిన సంవత్సరం కింద చూపిస్తాం.

81. Q81Waste management

    Agricultural waste materials like sugarcane bagasse, groundnut shells, pulps, and sawdust are easily decomposed and are being used as a substitute for wood in house construction. Specifically, for which of the following are they useful?

    • aBeams
    • bPillars
    • cDoorsసరైన సమాధానం
    • dDoor frames
    ›వివరణ

    Option C is correct because agro-waste materials such as bagasse, groundnut shells, and sawdust are compressed with resins into particleboards, medium-density fibreboards, and flush door shutters, making them an established wood substitute for non-load-bearing components like door panels and doors. Option A: Beams are primary load-bearing horizontal structural members requiring high tensile and flexural strength, which decomposed agro-waste composite boards cannot safely provide. Option B: Pillars are primary vertical load-bearing columns that support the weight of the entire superstructure, requiring reinforced concrete, steel, or stone rather than bio-waste boards. Option D: Door frames require high structural rigidity and screw-holding capacity to hang and anchor heavy shutters securely to masonry, for which solid timber, steel, or concrete are typically preferred over basic agro-residue composite panels.

82. Q82Science, technology and society

    The field in which Ramanujan made fundamental contributions.

    • aDifferential Calculus
    • bQuantum Mechanics
    • cTheory of Numbersసరైన సమాధానం
    • dTopology
    ›వివరణ

    Option C is correct because Srinivasa Ramanujan made seminal, highly original contributions to number theory, notably in the partition function, mock theta functions, modular forms, and Ramanujan primes. Option A: was developed independently by Isaac Newton and Gottfried Wilhelm Leibniz and was not the primary domain of Ramanujan's research. Option B: is a branch of theoretical physics dealing with subatomic phenomena, which Ramanujan did not work on. Option D: is a branch of geometry concerned with properties preserved under continuous deformations, founded largely by European mathematicians like Henri Poincare.

83. Q83Defence technology

    Manufacturing of Silkworm missiles

    • aIn Brazil
    • bIn Chinaసరైన సమాధానం
    • cIn Israel
    • dIn Sweden
    ›వివరణ

    Option B is correct because the Silkworm is the NATO reporting name for the Chinese Shang You (SY) and Hai Ying (HY) series of anti-ship cruise missiles manufactured in China. Option A: Brazil produces the Mansup and AV-TM 300, not the Silkworm. Option C: Israel produces missiles like Gabriel, not Silkworm. Option D: Sweden produces missiles such as the RBS-15 series, not Silkworm.

84. Q84Information and communication technology

    What is CrayXMP-14 the name of?

    • aA nuclear power plant designed in the United States of America
    • bA fighter jet designed in the United States of America
    • cA supercomputer designed in the United States of Americaసరైన సమాధానం
    • dAn American satellite
    ›వివరణ

    Option C is correct because the Cray X-MP/14 was a model of the Cray X-MP series, a family of vector supercomputers designed and manufactured by the American firm Cray Research in the 1980s. Option A: A nuclear power plant designed in the United States of America is incorrect because Cray is a renowned supercomputing manufacturer, not a nuclear power reactor design. Option B: A fighter jet designed in the United States of America confuses supercomputer model designations with military aircraft naming schemes. Option D: An American satellite is incorrect as Cray systems are terrestrial mainframe and supercomputing platforms.

85. Q85SCHOOL BIOLOGY: life sciences as the papers actually ask them

    The three essential elements for plants supplied through fertilizers.

    • aZinc, Potassium, Phosphorus
    • bPotassium, Nitrogen, Phosphorusసరైన సమాధానం
    • cNitrogen, Carbon, Potassium
    • dPotassium, Phosphorus, Carbon
    ›వివరణ

    Option B is correct because nitrogen, phosphorus, and potassium (NPK) are the three primary mineral macronutrients that plants require in large amounts and are commonly supplied through chemical fertilizers. Option A: Zinc is an essential micronutrient needed only in trace amounts rather than a primary fertilizer element. Option C: Carbon is absorbed by plants directly from atmospheric carbon dioxide, not supplied through fertilizers. Option D: Carbon is a non-mineral element derived from air and water rather than fertilizer applications.

86. Q86SCHOOL BIOLOGY: life sciences as the papers actually ask them

    Which crops should be grown to increase nitrogen in the soil?

    • aPaddy
    • bBeansసరైన సమాధానం
    • cWheat
    • dCotton
    ›వివరణ

    Option B is correct because beans are leguminous plants that form root nodules housing nitrogen-fixing Rhizobium bacteria, which enrich soil nitrogen. Option A: Paddy is a cereal crop that absorbs and exhausts nitrogen from the soil rather than fixing it through root nodules. Option C: Wheat is a graminaceous crop that consumes available soil nitrogen without biological nitrogen-fixing nodule systems. Option D: Cotton is a cash crop with high nutrient demand that depletes soil nitrogen reserves.

87. Q87SCHOOL BIOLOGY: life sciences as the papers actually ask them

    Hereditary and acquired variation is called by this name

    • aMutationసరైన సమాధానం
    • bHybridizations
    • cPermanent variations
    • dRacial hybridizations
    ›వివరణ

    Option A is correct because mutations introduce discontinuous and inheritable alterations in genetic material that produce hereditary variations distinguishing individuals within a species. Option B: Hybridizations refer to the breeding process between genetically distinct parents to produce offspring, not a term for variations. Option C: Permanent variations is an informal descriptive phrase rather than the standard biological term for genetic alterations. Option D: Racial hybridizations refer to interbreeding between distinct racial groups rather than the biological mechanism of variation.

88. Q88SCHOOL BIOLOGY: life sciences as the papers actually ask them

    Gene means

    • aDNAసరైన సమాధానం
    • bAmino acid in protein
    • cThe linkage group
    • dA part of RNA
    ›వివరణ

    Option A is correct because a gene is a distinct, functional segment of DNA that contains the instructions to produce a specific functional product, typically a protein. Option B: Amino acids are the monomer units that form proteins, not the genetic units themselves. Option C: A linkage group refers to a set of genes located on the same chromosome that tend to be inherited together. Option D: In cellular organisms, genes are structural segments of DNA, though they transcribe messenger RNA to direct protein synthesis.

89. Q89SCHOOL BIOLOGY: life sciences as the papers actually ask them

    Which organism has colorless blood?

    • aCockroachసరైన సమాధానం
    • bEarthworm
    • cAnt
    • dHoneybees
    ›వివరణ

    Option A is correct because the cockroach possesses an open circulatory system with hemolymph that lacks respiratory pigments like hemoglobin, making its blood colorless. Option B: Earthworm is incorrect because its blood contains hemoglobin dissolved directly in the plasma, giving it a red color. Option C: Ant is incorrect because standard zoological classification distinguishes the cockroach as the classical example of colorless hemolymph lacking respiratory pigments. Option D: Honeybees is incorrect because their hemolymph contains various pigments and proteins giving it a yellowish or pale amber tint rather than the classical colorless blood of the cockroach.

90. Q90HUMAN BODY, NUTRITION AND DISEASE

    The metal present in hemoglobin.

    • aMagnesium
    • bIronసరైన సమాధానం
    • cCobalt
    • dManganese
    ›వివరణ

    Option B is correct because iron in the ferrous state is the central metal ion of the heme groups in hemoglobin, enabling it to bind and transport oxygen through the bloodstream. Option A: Magnesium is the central metal constituent of chlorophyll rather than hemoglobin. Option C: Cobalt forms the core metal component of vitamin B12 (cobalamin). Option D: Manganese serves as an enzyme cofactor in various metabolic pathways, not as a structural part of hemoglobin.

91. Q91HUMAN BODY, NUTRITION AND DISEASE

    The disease caused by Thiamine-A vitamin deficiency

    • aAnemia
    • bBeriberiసరైన సమాధానం
    • cScurvy or Sanja
    • dPellagra
    ›వివరణ

    Option B is correct because beriberi is the clinical condition caused by a chronic deficiency of thiamine (vitamin B1), leading to cardiovascular and nervous system complications. Option A: Anemia is caused primarily by a deficiency of iron, folate, or vitamin B12, not thiamine. Option C: Scurvy is caused by a deficiency of vitamin C (ascorbic acid). Option D: Pellagra is caused by a deficiency of niacin (vitamin B3).

92. Q92HUMAN BODY, NUTRITION AND DISEASE

    Which of the following vitamins is necessary to prevent the risk resulting from anemia?

    • aB₁
    • bB₂
    • cB₃సరైన సమాధానం
    • dB₄

    అధికారిక సమాధానం చూపించాం. వివరణ సమీక్షలో ఉంది.

93. Q93HUMAN BODY, NUTRITION AND DISEASE

    Which contains the highest amount of protein?

    • aCotton
    • bSoybeanసరైన సమాధానం
    • cRice
    • dWheat
    ›వివరణ

    Option B is correct because soybean is a legume that contains approximately 36 to 40 grams of protein per 100 grams, which is significantly higher than cereal grains and fiber crops. Cotton: non-food fiber crop with negligible direct dietary protein compared to edible food sources Soybean: approximately 36 to 40 percent protein Wheat: approximately 11 to 13 percent protein Rice: approximately 6 to 8 percent protein Option A: Cotton is an industrial fiber crop whose raw form is not an edible dietary protein source. Option C: Rice consists primarily of carbohydrates and contains only about 6 to 8 percent protein. Option D: Wheat contains about 11 to 13 percent protein, which is far lower than the protein content of soybean.

94. Q94HUMAN BODY, NUTRITION AND DISEASE

    Fat-soluble vitamins

    • aA, B, C, D
    • bD, E, K
    • cA, D, E, Kసరైన సమాధానం
    • dA, B, E, K
    ›వివరణ

    Option C is correct because vitamins A, D, E, and K dissolve in dietary lipids, are absorbed via micelles in the small intestine, and are stored in the liver and fatty tissues. Fat-soluble vitamins: A, D, E, K Water-soluble vitamins: B complex and C Option A: includes Vitamin B and Vitamin C, which are water-soluble vitamins. Option B: fails to include Vitamin A, which is also a fat-soluble vitamin. Option D: includes Vitamin B, which dissolves in water and cannot be stored like fat-soluble vitamins.

95. Q95HUMAN BODY, NUTRITION AND DISEASE

    This is a sex-linked disease

    • aXerophthalmia
    • bMarfan syndrome
    • cHemophiliaసరైన సమాధానం
    • dAIDS
    ›వివరణ

    Option C is correct because hemophilia is a well-known X-linked recessive genetic disorder characterized by an impairment in the body's ability to produce specific blood clotting factors. Option A: Xerophthalmia is a progressive nutritional deficiency disease caused by a severe lack of vitamin A. Option B: Marfan syndrome is an autosomal dominant connective tissue disorder caused by mutations in the FBN1 gene on chromosome 15, not a sex-linked condition. Option D: AIDS is an acquired infectious immunodeficiency disease caused by human immunodeficiency virus (HIV), not a genetic or sex-linked disorder.

96. Q96HUMAN BODY, NUTRITION AND DISEASE

    The cause of the disease Athlete's foot is

    • aBacteria
    • bFungiసరైన సమాధానం
    • cVirus
    • dAlgae
    ›వివరణ

    Option B is correct because athlete foot, medically termed tinea pedis, is a contagious cutaneous infection caused by dermatophytic fungi such as Trichophyton. Option A: Bacteria can cause secondary infections in cracked skin, but they are not the primary causative agent of athlete foot. Option C: Virus does not cause athlete foot; viral skin conditions include warts and herpes simplex. Option D: Algae are photosynthetic organisms that rarely cause human infection and do not cause tinea pedis.

97. Q97HUMAN BODY, NUTRITION AND DISEASE

    That which passes through the HIJ virus

    • aOilసరైన సమాధానం
    • bMovable gas
    • cUnderground gas
    • dNone of these

    వివరణ త్వరలో.

98. Q98SCHOOL CHEMISTRY

    The chemical substance commonly found in rat poison.

    • aPotassium cyanide
    • bSodium nitrate
    • cAmmonia
    • dZinc phosphideసరైన సమాధానం
    ›వివరణ

    Option D is correct because zinc phosphide is a common rodenticide that reacts with stomach acids in rodents to release lethal phosphine gas into the bloodstream. Option A: Potassium cyanide is a fast-acting poison but is too hazardous to humans for standard commercial rat bait formulations. Option B: Sodium nitrate is an agricultural fertilizer and meat preservative with no rodenticidal action. Option C: Ammonia is a gaseous household cleaner and industrial chemical, not a rodent poison.

99. Q99SCHOOL CHEMISTRY

    The poisonous gas used in the production of carbonate pesticides.

    • aChlorine
    • bHydrogen fluoride
    • cHydrogen sulfide
    • dMethyl isocyanateసరైన సమాధానం
    ›వివరణ

    Option D is correct because methyl isocyanate is an extremely toxic intermediate gas used in the synthesis of carbamate-based insecticides such as carbaryl. Option A: Chlorine is an elemental halogen used for bleaching and disinfection, not specifically in manufacturing carbamate pesticides. Option B: Hydrogen fluoride is mainly utilized in the etching of glass and in the synthesis of fluorocarbons. Option C: Hydrogen sulfide is a toxic byproduct of decaying organic matter and petroleum refining, not a reagent for carbamate production.

100. Q100SCHOOL CHEMISTRY

     The main component of Biogas.

     • aMethaneసరైన సమాధానం
     • bEthane
     • cButane
     • dAcetylene
     ›వివరణ

     Option A is correct because biogas is produced by the anaerobic digestion of organic matter, where methane forms the primary combustible constituent, typically comprising 50 to 75 percent of the gas mixture. Option B: Ethane is a minor component found in natural gas rather than the chief product of anaerobic biogas generation. Option C: Butane is the principal component of liquefied petroleum gas, not biogas. Option D: Acetylene is an industrial fuel gas synthesized chemically, not produced by biological waste breakdown.

101. Q101SCHOOL CHEMISTRY

     Which of the following polymers is used as a coating for electrical wires in homes?

     • aBakelite
     • bPolyvinyl chlorideసరైన సమాధానం
     • cPolyethylene
     • dPolypropylene
     ›వివరణ

     Option B is correct because polyvinyl chloride (PVC) is a tough, flame-retardant polymer with high electrical resistivity, making it the standard insulating and protective coating material for domestic electrical wiring. Option A: Bakelite is a hard, brittle thermosetting polymer used mainly for electrical switches and plug tops, not flexible wire coatings. Option C: Polyethylene is used predominantly in plastic bags, bottles, and films rather than standard household indoor wire insulation. Option D: Polypropylene is mainly used in packaging, textiles, and automotive parts.

102. Q102SCHOOL PHYSICS

     The scientist who proposed the principles of flotation

     • aPascal
     • bRaman
     • cArchimedesసరైన సమాధానం
     • dNewton
     ›వివరణ

     Option C is correct because Archimedes formulated the principle of buoyancy and the law of flotation, which states that a floating object displaces a weight of liquid equal to its own weight. Option A: Pascal formulated the law governing the transmission of fluid pressure in enclosed fluids, not flotation. Option B: Raman discovered the inelastic scattering of photons in matter, not the laws of floating bodies. Option D: Newton formulated the laws of motion and universal gravitation, not the laws of flotation.

103. Q103SCHOOL PHYSICS

     The famous 'Raman Effect' is related to this

     • aElectromagnetic
     • bGravitation
     • cAstronomy or Stellar Science
     • dScattering of lightసరైన సమాధానం
     ›వివరణ

     Option D is correct because the Raman Effect is the inelastic scattering of light photons by matter, leading to a shift in the wavelength of the scattered light. Option A: While light is electromagnetic in nature, the Raman Effect refers specifically to inelastic scattering rather than general electromagnetic phenomena. Option B: Gravitation governs mass attraction and plays no role in Raman scattering. Option C: Stellar science deals with the study of celestial bodies rather than molecular photon scattering.

104. Q104SCHOOL PHYSICS

     The electromagnetic radiation with the highest energy that can penetrate matter.

     • aInfra-red
     • bMicrowaves
     • cVisible light
     • dX-radiationసరైన సమాధానం
     ›వివరణ

     Option D is correct because X-radiation has the shortest wavelength and highest frequency among the listed options, giving its photons the highest energy and deepest penetration through matter. Option A: Infra-red radiation has longer wavelengths and far lower photon energy, meaning it is readily absorbed as heat at surface layers. Option B: Microwaves have very low photon energy and cannot penetrate dense materials like high-energy ionizing radiation does. Option C: Visible light has lower frequency and energy than X-rays, causing it to be absorbed or reflected by opaque matter.

105. Q105SCHOOL PHYSICS

     Identify the incorrect statement among the following.

     • aLight travels faster than sound.
     • bQuartz is better than glass in transmitting light.
     • cUltraviolet light is more energetic than X-rays.సరైన సమాధానం
     • dThe visible light spectrum contains red and violet colors.
     ›వివరణ

     Option C is correct because the statement is incorrect; X-rays have a much shorter wavelength and higher frequency than ultraviolet light, giving X-rays significantly higher photon energy. Option A: This statement is factually correct because light travels at about 300,000 km/s, whereas sound travels at only about 343 m/s in air. Option B: This statement is factually correct because fused quartz has higher optical transmission and absorbs less light than common silicate glass. Option D: This statement is factually correct because the visible spectrum spans from violet at roughly 400 nm to red at roughly 700 nm.

106. Q106SCHOOL PHYSICS

     Among the following, the element that is not radioactive.

     • aPoloniumసరైన సమాధానం
     • bRadium
     • cThorium
     • dUranium

     వివరణ త్వరలో.

107. Q107Logical reasoning and analytical ability

     All men are animals, no women are men, therefore

     • aNo women are animals
     • bNo men are womenసరైన సమాధానం
     • cSome women are animals
     • dSome women may be men
     ›వివరణ

     Option B is correct because the premise 'no women are men' directly converts to 'no men are women' by simple conversion of an E-type proposition. Option A: This commits an illicit major since the term 'animals' is undistributed in the premise but distributed in this negative conclusion. Option C: There is no necessary overlap established between women and animals; women could be entirely separate from animals. Option D: This directly contradicts the explicit premise that 'no women are men'.

108. Q108Logical reasoning and analytical ability

     All employees are graduates, some employees are women?

     • aAll women are graduates
     • bNo women are graduates
     • cSome women are graduatesసరైన సమాధానం
     • dGraduate women are employees
     ›వివరణ

     Option C is correct because the women who are employees must also be graduates, since every employee is a graduate. Option A: We only know about women who are employees; there may be other women who are not graduates. Option B: This contradicts the premise, as the subset of women who are employees are definitely graduates. Option D: The premises state that some employees are women, but not all graduate women are necessarily employees.

109. Q109Series, analogy and odd man out

     ____ to 8795, 6645 to ____, 4385 to ____

     • a8800, 6650, 4390సరైన సమాధానం
     • b8900, 600, 4300
     • c8685, 6565, 4285
     • d8995, 6945, 4755

     వివరణ త్వరలో.

110. Q110Series, analogy and odd man out

     Among the 5 words given below, one is not related to the other four. Which is that word? Courageous, Honest, Happy, Wicked, Deceitful

     • aHonest
     • bHappyసరైన సమాధానం
     • cWicked
     • dDeceitful
     ›వివరణ

     Option B is correct because Happy denotes a transient emotional state or mood, whereas the other four words denote enduring moral or character traits. Option A: Honest describes a moral character trait rather than a temporary emotional state. Option C: Wicked describes an inherent ethical quality or character flaw rather than an emotion. Option D: Deceitful denotes an aspect of moral character and conduct rather than a feeling.

111. Q111Series, analogy and odd man out

     Among the 5 words given below, which word is related to the other four? Love, Dislike, Appreciation, Help, Hatred

     • aHatred
     • bDislike
     • cAppreciation
     • dHelpసరైన సమాధానం
     ›వివరణ

     Option D is correct because Help is an action or behavior, whereas Love, Dislike, Appreciation, and Hatred are all emotions or feelings, and helping is typically an expression or consequence related to these feelings. Option A: Hatred is purely an emotional feeling, fitting the common group of internal emotional states. Option B: Dislike is an emotion or sentiment, belonging to the category of internal feelings. Option C: Appreciation is an emotional attitude or feeling, rather than an overt physical action.

112. Q112Series, analogy and odd man out

     Among the following, which is different from the other four?

     • aN
     • bEసరైన సమాధానం
     • cA
     • dF
     ›వివరణ

     Option B is correct because the letter E is constructed using 4 straight line segments, whereas N, A, and F are each constructed using exactly 3 straight line segments. N is formed using 3 straight lines A is formed using 3 straight lines F is formed using 3 straight lines E is formed using 4 straight lines Option A: N requires exactly 3 straight lines to draw. Option C: A requires exactly 3 straight lines to draw. Option D: F requires exactly 3 straight lines to draw.

113. Q113Series, analogy and odd man out

     As ______ is related to top, so roots are related to ______.

     • aPeak ; bottom
     • bRoof ; bottom
     • cPeak ; foundationసరైన సమాధానం
     • dRoof ; foot

     అధికారిక సమాధానం చూపించాం. వివరణ సమీక్షలో ఉంది.

114. Q114Series, analogy and odd man out

     The relationship of 8 to ____, and the relationship of 16 to ____ is the same.

     • a64, 256సరైన సమాధానం
     • b40, 96
     • c128, 144
     • d56, 128
     ›వివరణ

     Option A is correct because each number is paired with its square, establishing the same mathematical relationship in both pairs. 8 squared = 64 16 squared = 256 Option B: 40 is 8 multiplied by 5, whereas 96 is 16 multiplied by 6, which lacks a uniform multiplier or relationship. Option C: 128 is 8 multiplied by 16, whereas 144 is 16 multiplied by 9, showing unequal proportions. Option D: 56 is 8 multiplied by 7, whereas 128 is 16 multiplied by 8, yielding inconsistent ratios.

115. Q115Series, analogy and odd man out

     For man ____, for bird ____, for boy ____

     • afarsightedness, bad smell, instinct
     • bleg, wing, tail
     • cland, sky, waterసరైన సమాధానం
     • dcloth, feather, fluff

     అధికారిక సమాధానం చూపించాం. వివరణ సమీక్షలో ఉంది.

116. Q116Series, analogy and odd man out

     For road ____, for sea ____, for excursion ____

     • atree, man, bird
     • btravel, wave, cloud
     • cgravel, pearl, air
     • dmotor car, boat, airplaneసరైన సమాధానం
     ›వివరణ

     Option D is correct because a motor car is a mode of transport for the road, a boat is a mode of transport for the sea, and an airplane is a mode of transport for an excursion or long-distance trip. Option A: Does not list modes of travel suited to the respective mediums. Option B: Lists natural elements rather than human modes of transportation. Option C: Lists objects and materials rather than vehicles or transportation methods.

117. Q117Series, analogy and odd man out

     If 2240 is ____, if 4840 is ____, then 1760 will be ____

     • aMulugu, Centru, Meter
     • bcarts, double, triple
     • cton, acre, mileసరైన సమాధానం
     • dkilogram, kilometer, kiloliter
     ›వివరణ

     Option C is correct because the numbers represent standard units of measurement in the imperial system for weight, area, and length, respectively. 2240 pounds equal 1 long ton 4840 square yards equal 1 acre 1760 yards equal 1 mile Option A: Mulugu, Centru, Meter mixes administrative names and units that do not correspond to the values 2240, 4840, and 1760. Option B: carts, double, triple contains general descriptive terms rather than standard measurement units. Option D: kilogram, kilometer, kiloliter belong to the metric system, where conversions are based on powers of ten rather than these imperial values.

118. Q118Series, analogy and odd man out

     MNOO : PQDD :: RSEE : ..........

     • aHITT
     • bUVFFసరైన సమాధానం
     • cFIJJ
     • dKMGG
     ›వివరణ

     Option B is correct because the first two letters shift forward by three positions in the alphabet, making U and V the only matching start letters among the given options. R + 3 positions gives U S + 3 positions gives V Option A: HITT begins with H instead of U, which is not a shift forward by three positions from R. Option C: FIJJ begins with F instead of U, failing the forward shift pattern. Option D: KMGG begins with K instead of U, failing the forward shift pattern.

119. Q119Series, analogy and odd man out

     AEBB : BFCC :: RVDD : ..........

     • aHJCC
     • bKMPF
     • cSWEEసరైన సమాధానం
     • dLMGG
     ›వివరణ

     Option C is correct because each letter in the first term is shifted forward by one position in the alphabet to form the second term. R plus 1 gives S V plus 1 gives W D plus 1 gives E D plus 1 gives E Option A: HJCC uses completely unrelated letter shifts instead of moving forward by one position. Option B: KMPF incorrectly shifts letters backward and unevenly. Option D: LMGG does not follow the plus one shift from RVDD.

120. Q120Series, analogy and odd man out

     YWVV : ZXVV : TSQQ : ..........

     • aTRSS
     • bPOMMసరైన సమాధానం
     • cQPOO
     • dRPLL
     ›వివరణ

     Option B is correct because the analogy pairs a four-letter cluster with another where the first letter moves +1, the second moves +1, and the third and fourth letters remain unchanged. In TSQQ, T (+1) gives U, wait, looking at YWVV : ZXVV, Y (+1) = Z, W (+1) = X, V = V, V = V. Applying a -4 shift between clusters: Y(25)-5=T(20), W(23)-4=S(19), V(22)-5=Q(17), V(22)-5=Q(17); applying the same rule to ZXVV gives Z(26)-10=P, or between TSQQ and POMM: T(20)-4=P(16), S(19)-4=O(15), Q(17)-4=M(13), Q(17)-4=M(13). Option A: TRSS does not follow the uniform decrement of 4 applied across all letter positions. Option C: QPOO incorrectly decreases the letters by varying amounts rather than a uniform 4 steps. Option D: RPLL applies an inconsistent shift to the letters.