TGPSC Group-I Prelims 1983

170 questions from the 1983 papers, each with the official answer and an explanation.

A question repeated across years is listed once, under one of the years it appeared.

121. Q121SCHOOL PHYSICS

     What is the speed of light?

     • aInfinite
     • b3 x 10⁸ meters/secondAnswer
     • cZero
     • dNone of these
     ›Explanation

     Option B is correct because the speed of light in a vacuum is a fundamental physical constant defined as approximately 299,792,458 meters per second, commonly rounded to 3 x 10⁸ meters per second. Speed of light in vacuum = 299,792,458 meters per second Standard scientific approximation = 3 x 10⁸ meters per second Option A: Light travels at a finite, measurable speed governed by universal physical constants. Option C: Light moves continuously at a constant speed in a given medium and cannot have zero velocity. Option D: The exact rounded numerical value is present among the given choices.

122. Q122SCHOOL PHYSICS

     How is electric power expressed?

     • aVoltage product - currentAnswer
     • bVoltage sum - current
     • cVoltage ratio - current
     • dNone of these
     ›Explanation

     Option A is correct because electric power in a circuit is defined as the rate at which electrical energy is transferred, which is calculated as the product of electric potential difference and current. Electric Power (P) = Voltage (V) x Current (I) Option B: adding voltage and current is dimensionally incorrect and does not define power. Option C: the ratio of voltage to current represents electrical resistance by Ohm's law, not power. Option D: Option A is the correct expression for electric power.

123. Q123SCHOOL PHYSICS

     Radioactivity is related to which of the following?

     • aAtomic mass chediya
     • bChediya part
     • cElement nucleusAnswer
     • dNone of these
     ›Explanation

     Option C is correct because radioactivity is a spontaneous nuclear phenomenon in which an unstable element nucleus disintegrates, emitting alpha particles, beta particles, or gamma radiation to achieve stability. Option A: Atomic mass chediya is wrong because radioactivity arises from nuclear instability rather than just a total mass property. Option B: Chediya part is wrong because it is a garbled translation/fragment and does not denote a valid physical concept in radioactivity. Option D: None of these is wrong because radioactivity is definitively a property and reaction of the atomic nucleus.

124. Q124SCHOOL PHYSICS

     Which of the following is not a fundamental particle?

     • aElectron
     • bAlpha particleAnswer
     • cProton
     • dNone of these
     ›Explanation

     Option B is correct because an alpha particle is a composite particle consisting of two protons and two neutrons bound together (a helium-4 nucleus), making it non-fundamental. Option A: An electron is an elementary lepton with no known substructure, classifying it as a fundamental particle. Option C: A proton was traditionally classified as a fundamental subatomic building block in classic curricula, whereas an alpha particle is unambiguously a composite nucleus. Option D: This is incorrect because an option among the choices is indeed not a fundamental particle.

125. Q125SCHOOL PHYSICS

     What is the device used to measure the depth of the sea called?

     • aRadar
     • bSonarAnswer
     • cLaser
     • dNone of these
     ›Explanation

     Option B is correct because Sonar (Sound Navigation and Ranging), specifically an echo sounder, calculates water depth by transmitting ultrasonic acoustic pulses downward and timing their round-trip reflection from the seabed. Option A: Radar uses radio frequency waves, which undergo rapid attenuation in water and cannot penetrate to measure deep sea floors. Option C: Laser light scatters and absorbs quickly in natural water bodies, limiting its use to very shallow aerial bathymetry rather than standard marine depth sounding. Option D: Incorrect because Sonar is the standard, designated instrument for measuring ocean depth.

126. Q126SCHOOL PHYSICS

     What is the appearance of an image on a television screen called?

     • aAudition
     • bVisualAnswer
     • cRadio
     • dNone of these
     ›Explanation

     Option B is correct because the pictorial display or image appearing on a television receiver is referred to as the visual component. Option A: refers to the auditory reception or sound element of a broadcast. Option C: refers to electromagnetic transmission or radio frequency carrier systems rather than the displayed image. Option D: is incorrect because visual accurately describes the displayed picture.

127. Q127Series, analogy and odd man out

     ... is to kite as motive is to ...... as ...... is to mass

     • aPaper, Power, Clay
     • bStrong, Man, Material
     • cWind, Human, PressureAnswer
     • dFly, Propel, Move

     Official answer shown. The explanation is under review.

128. Q128Series, analogy and odd man out

     99 is to ...... as ...... is to 1000 as 665 is to......

     • a9,100,60
     • b100,999,666Answer
     • c19,110,65
     • d9,111,66
     ›Explanation

     Option B is correct because each pair consists of consecutive integers, where the first number plus one gives the second number (or the second minus one gives the first). 99 + 1 = 100 999 + 1 = 1000 665 + 1 = 666 Option A: Does not follow the consecutive integer relationship. Option C: Does not follow the consecutive integer relationship. Option D: Does not follow the consecutive integer relationship.

129. Q129Series, analogy and odd man out

     ...... Is to 99 as 10 Is to ... as ...... is not to 420

     • a9,110,14Answer
     • b10,9,4
     • c9,1,42
     • d3,2,11
     ›Explanation

     Option A is correct because the relationship between the first two pairs is multiplication by 11, whereas the third pair correctly satisfies the negative condition of not matching that product. 9 multiplied by 11 equals 99 10 multiplied by 11 equals 110 14 multiplied by 11 equals 154, which is not 420 Option B: 10,9,4 fails because 10 times 11 does not equal 99, and 9 does not relate to 10 by the common rule. Option C: 9,1,42 fails because 10 multiplied by 11 does not equal 1. Option D: 3,2,11 fails because 3 multiplied by 11 does not equal 99, and 10 multiplied by 11 does not equal 2.

130. Q130Series, analogy and odd man out

     ... is to E as I is to ...... as ...... is not to V:

     • aA,9, 19
     • b5,9,20Answer
     • c0,10,20
     • d4, L, 22
     ›Explanation

     Option B is correct because E is the 5th letter and I is the 9th letter of the alphabet, whereas 20 corresponds to T rather than V, which is the 22nd letter. E is the 5th letter of the English alphabet I is the 9th letter of the English alphabet V is the 22nd letter, so 20 is not V Option A: A represents the 1st letter rather than E which is 5th. Option C: 0 does not represent any letter position in the alphabet. Option D: 4 corresponds to D rather than E, and L corresponds to 12 rather than 9.

131. Q131Series, analogy and odd man out

     ...... is to medicine as corruption is to...... ignorance is to ...... as fungus is to ......

     • aPatient, leaders, masses, moisture
     • bChemicals, society, rural, moss
     • cDisease, Government, Education, WoodAnswer
     • dDoctor, Management, labour, soil
     ›Explanation

     Option C is correct because the analogy relates an affliction or problem to the medium it plagues or the remedy that cures it: disease is treated by medicine, corruption afflicts government, ignorance is removed by education, and fungus attacks wood. Option A: Patient, leaders, masses, moisture disrupts the parallel relationships between problems and their corresponding domains or remedies. Option B: Chemicals, society, rural, moss fails because chemicals are a substance rather than an affliction cured by medicine. Option D: Doctor, Management, labour, soil pairs practitioners and organizational categories inconsistently across the analogies.

132. Q132Series, analogy and odd man out

     ... is to leg as hinge to ...... as ... is to arm as ...... is to finger

     • aBone, window, shoulder, nail
     • bWalk, move, lift, write
     • cKnee, door, shoulder, knuckleAnswer
     • dTable, door, chair, stool
     ›Explanation

     Option C is correct because each pair matches a biological or mechanical joint to the limb, structure, or digit it articulates: knee is to leg, hinge is to door, shoulder is to arm, and knuckle is to finger. Option A: Bone, window, shoulder, nail mixes structural components and non-joint parts with body members. Option B: Walk, move, lift, write lists actions or functions rather than articulating joints. Option D: Table, door, chair, stool lists furniture items that do not share the functional joint analogy.

133. Q133Series, analogy and odd man out

     ......... is to tree as climber is to ...... as ............ is to grass as........... is to shrub

     • aNeem, Melon, Wood, teaAnswer
     • bAxe, Woodcutter, mover, chopper
     • cMango, Coconut, paddy, lemon
     • dTrunk, tendril, stock, things

     Official answer shown. The explanation is under review.

134. Q134Series, analogy and odd man out

     ...... is to timber as ferment is to ...... as ......... is to milk as break is not to ......

     • aRot, sugar, split, flower
     • bDead, Liquor, Spoil, iron
     • cFire, curd, bacteria, seeds
     • dSolid, Liquid, Semi liquid, SolidAnswer

     Explanation coming soon.

135. Q135Series, analogy and odd man out

     is to cripple as curl is to ......... as ...... is to essay as curt is to

     • aLegs, hair, topic, mannersAnswer
     • bCramp, reptile, curtail, speech
     • cCrutch, comb, words, rude
     • dLame, pain, style, speech
     ›Explanation

     Option A is correct because each word correctly completes the proportional analogy: a cripple has afflicted legs, hair naturally forms curls, an essay is written on a topic, and manners are described as curt. Option B: Cramp, reptile, and curtail fail to maintain parallel functional relationships across all parts of the sentence. Option C: Crutch and comb are external tools rather than body parts or innate characteristics. Option D: Pain and style fail to match the sequence of bodily part, feature, composition, and behavioral attribute.

136. Q136Series, analogy and odd man out

     is to carpet as cotton is to......as...... is to book as ...... is not to bag

     • aWool, fiber, words, iron
     • bJute, cloth, paper, woodAnswer
     • cFeet, body, hands, skin
     • dAnimal, planet, machine, man - made
     ›Explanation

     Option B is correct because jute is the raw material used to make carpet, cotton is the raw material used to make cloth, paper is used to make a book, and wood is typically not used to make a flexible bag. Option A: Words are the contents of a book, not the physical material making it up. Option C: Refers to body parts rather than raw materials and finished products. Option D: Contains broad categories rather than specific material-to-product relationships.

137. Q137Series, analogy and odd man out

     Skin; Muscle; Bone; ______

     • aBlood
     • bCalcium
     • cMarrowAnswer
     • dDVeins
     ›Explanation

     Option C is correct because the sequence represents anatomical layers of the body arranged sequentially from the exterior inward: skin covers muscle, muscle surrounds bone, and bone encloses marrow. Option A: Blood is a circulating fluid found throughout various tissues rather than the innermost anatomical layer inside bone. Option B: Calcium is a chemical element and mineral component of bone, not an anatomical structural layer. Option D: DVeins refers to blood vessels distributed across multiple tissue layers rather than the internal core of bone.

138. Q138Series, analogy and odd man out

     Flute : ______ trumpet : Guitar

     • aHarmonica
     • bDrums
     • cPiano
     • dViolinAnswer
     ›Explanation

     Option D is correct because flute and trumpet are both wind instruments (aerophones), while guitar and violin are both stringed instruments (chordophones), completing the parallel analogy. Option A: Harmonica is a wind instrument, which disrupts the parallel relationship between wind and string families. Option B: Drums belong to the percussion family, failing to match the string instrument pair. Option C: Piano is primarily a keyed or percussion-string instrument rather than a bowed or plucked string instrument like guitar.

139. Q139Series, analogy and odd man out

     Letter : ______ : ______ Sentence

     • aMail, Worrds
     • bWord, PharaseAnswer
     • cCorrospondence, Court
     • dAlphabets, Words
     ›Explanation

     Option B is correct because linguistic units are arranged in an ascending hierarchical sequence: letters combine to form words, words combine to form phrases, and phrases combine to form sentences. Option A: Mail refers to postal communication rather than an intermediate structural unit of language. Option C: Correspondence and court pertain to administrative and legal contexts rather than grammatical structures. Option D: Alphabets designate the entire writing system rather than an intermediate stage between letters and sentences.

140. Q140Series, analogy and odd man out

     Issue : ______ : : ______ : draw

     • aPolitics, PencilAnswer
     • bRake, Water
     • cLaw, Art
     • dWords, Strokes

     Official answer shown. The explanation is under review.

141. Q141Series, analogy and odd man out

     ______ is to branch qs knot is to ______

     • aWood hanging
     • bTree fiber
     • cKnarl chord
     • dLeaves tieAnswer

     Official answer shown. The explanation is under review.

142. Q142Series, analogy and odd man out

     ______ is to Kc, Me no as HG is to ______

     • aPO : DE FE, FG
     • bOO : FE GG JG
     • cOP : EG FG, GHAnswer
     • dRE : EF, GH, IJ

     Explanation coming soon.

143. Q143Series, analogy and odd man out

     ______ is to era as descent is to ______

     • aYears light
     • bDawn KingsAnswer
     • cDays Human
     • dArchaeology history
     ›Explanation

     Option B is correct because dawn represents the origin or commencement of an era, while descent denotes the lineage or genealogy of kings. Option A: Years are standard units of time within an era, but light has no genealogical connection to descent. Option C: Days are chronological units, but human does not form a precise parallel with the historical context of descent. Option D: Archaeology is the study of past human material remains, but history does not create an origin or lineage parallel.

144. Q144Series, analogy and odd man out

     ______ is to 16 qs 76 is to ______

     • a20 100
     • b4 7
     • c10 70Answer
     • d2 13
     ›Explanation

     Option C is correct because the numerical difference between the numbers in both pairs is equal to 6. 16 - 10 = 6 76 - 70 = 6 Option A: 20 and 100 yield differences of 4 and 24, which are not equal. Option B: 4 and 7 yield differences of 12 and 69, which are unequal. Option D: 2 and 13 yield differences of 14 and 63, which do not maintain a constant difference.

145. Q145Series, analogy and odd man out

     ______ is to sentence sa sentence is to

     • aCrime judgemen
     • bWord ParagraphAnswer
     • cJurry Prose
     • dWords Legal
     ›Explanation

     Option B is correct because words combine to form a sentence, just as sentences combine to form a paragraph, maintaining an identical part-to-whole relationship at successive levels of language structure. Option A: Crime and judgement represent an unlawful act and its legal outcome, not a structural part-to-whole hierarchy. Option C: Jurry and prose pair a court body with a literary medium, lacking any component-to-whole relationship. Option D: Words and legal combine a grammatical unit with an adjective, failing to form a compositional progression.

146. Q146Series, analogy and odd man out

     ______ is to A as 22 is to ______

     • aO BBAnswer
     • bI XX
     • cK 3
     • dB BB

     Explanation coming soon.

147. Q147Series, analogy and odd man out

     ______ is to 64 as 2 is to ______

     • a6 18
     • b4 32Answer
     • c7E B
     • d4 B
     ›Explanation

     Option B is correct because placing 4 and 32 in the blanks forms an equivalent proportion where both ratios reduce to 1 to 16. 4 / 64 = 1 / 16 2 / 32 = 1 / 16 Option A: 6 to 64 simplifies to 3 to 32, whereas 2 to 18 simplifies to 1 to 9, which are not equal. Option C: 7E and B are alphanumeric symbols that cannot complete a valid numeric proportion. Option D: 4 and B introduces an undefined alphabetic character B in place of a numerical denominator.

148. Q148Series, analogy and odd man out

     ______ is to ABC as CBA is to ______

     • aPQS RST
     • bLMN FDG
     • cLMN EDG
     • dXYZ KJIAnswer
     ›Explanation

     Option D is correct because XYZ and ABC are both sets of three consecutive letters in forward alphabetical order, while CBA and KJI are both sets of three consecutive letters in reverse alphabetical order. Option A: PQS skips the letter R and is not composed of three consecutive letters. Option B: FDG does not form a sequence of consecutive letters in reverse alphabetical order. Option C: EDG skips letters irregularly rather than following a continuous reverse alphabetical sequence.

149. Q149Series, analogy and odd man out

     ______ is to Dasj is to ______ as is to book

     • aC, K, WAnswer
     • bE, I, Y
     • cF, L, Y
     • dB, G, T

     Explanation coming soon.

150. Q150Series, analogy and odd man out

     ______ is to eye as cap is to ______ as ______ is to book

     • aLid, Pen, coverAnswer
     • bSpectacles, Wool, Paper
     • cVision, head, words
     • dSocket, Scalp, hands
     ›Explanation

     Option A is correct because it completes the analogy based on protective or outer coverings, where an eyelid covers an eye, a cap covers a pen, and a cover protects a book. Option B: Spectacles, Wool, and Paper represent vision aids or materials rather than protective outer coverings. Option C: Vision, head, and words describe biological functions, body parts, or contents rather than covering objects. Option D: Socket, Scalp, and hands describe anatomical regions rather than corresponding protective covers.

151. Q151Series, analogy and odd man out

     ______ is to pause as colon is to—as change is to—

     • aComa, long pause, hyphenAnswer
     • bFullstop, change semicolon
     • cClause, Example, Exclamation
     • dNoun, Adjective, tense
     ›Explanation

     Option A is correct because each punctuation mark fulfills the corresponding grammatical role: a comma denotes a pause, a colon marks a longer pause, and a hyphen denotes a change or break in syntax. Option B: Fullstop marks a final termination rather than an ordinary pause, and semicolon does not match the prompt order. Option C: Clause and Example describe grammatical units and text elements rather than punctuation marks. Option D: Noun, Adjective, and tense are parts of speech and inflectional properties rather than punctuation marks.

152. Q152Series, analogy and odd man out

     ___ is to kite as motive si to ___ as ___ to mass

     • aPaper, Power, Clay
     • bStrong, Man, Material
     • cWind, Human, PressureAnswer
     • dFly, Propel, Move

     Explanation coming soon.

153. Q153Series, analogy and odd man out

     99 is to ___ as is to 1,000 as 665 is to ___

     • a9, 100, 60
     • b100, 999, 666Answer
     • c19, 110, 65
     • d9, 111, 66
     ›Explanation

     Option B is correct because the underlying rule across each pair is that the second number is obtained by adding 1 to the first number. 99 + 1 = 100 1,000 - 1 = 999 665 + 1 = 666 Option A: It does not follow the constant increment of 1 required to complete the pairs. Option C: It uses irregular numbers that fail to maintain a consistent mathematical difference. Option D: It provides arbitrary values that break the addition of 1 pattern across the analogy.

154. Q154Series, analogy and odd man out

     ___ is to 99 s 10 sis to ___ as ___ is not to 420

     • a9, 110, 14Answer
     • b19, 9, 4
     • c9, 1, 42
     • d3, 2, 11

     Explanation coming soon.

155. Q155Series, analogy and odd man out

     ___ is to E as 13 is to ___ as ___ is not to V;

     • aA, 9, 19
     • b5, M, 20Answer
     • c0, 10, 20
     • d4, L, 22
     ›Explanation

     Option B is correct because the English alphabet position of E is 5, the letter corresponding to position 13 is M, and the position of V is 22, meaning 20 is not corresponding to V. Letter E is the 5th letter of the alphabet Letter M is the 13th letter of the alphabet Letter V is the 22nd letter of the alphabet, so 20 is not V Option A: A is 1, not related to position 5 of E. Option C: 0 does not correspond to the position of E. Option D: 4 corresponds to D, not E.

156. Q156Series, analogy and odd man out

     ___ is to medicine as coruption is to ___ ignorance is to ___ as fungus is to ___

     • aPatient, leaders, massess, moisture
     • bChemicals, society, rural, moss
     • cdisease,Government, Education, WoodAnswer
     • dDoctor, Management, labour, soil
     ›Explanation

     Option C is correct because each pair matches an affliction or problem with the entity it damages or the remedy that cures it: disease is cured by medicine, corruption damages government, ignorance is cured by education, and fungus damages wood. Option A: Patient is a recipient of medical care rather than the condition treated, disrupting the parallel relationship. Option B: Chemicals are components of medicine rather than the negative condition being eliminated. Option D: Doctor is the practitioner administering medicine rather than the affliction itself.

157. Q157Series, analogy and odd man out

     ___ is to leg as hinge is to ___ as ___ is to arms as ___ is to finger

     • aBone, window shoulder, nail
     • bWalkm move, lift, write
     • cKnew, door, shoulder, knuckleAnswer
     • dTable, door, chair, stool
     ›Explanation

     Option C is correct because each term represents an articulating joint: the knee is the joint of the leg, a hinge functions as the joint of a door, the shoulder is the joint of the arm, and the knuckle is the joint of the finger. Option A: Bone and nail are skeletal or keratinous parts rather than flexible articulating joints. Option B: Walk, move, lift, and write denote physical actions rather than structural joints. Option D: Table, chair, and stool are standalone furniture items rather than mechanical or anatomical joints.

158. Q158Series, analogy and odd man out

     ___ is to tree as climber is to ___ as ___ is grass as ___ is to shrub

     • aNeem, Melon, Weed, teaAnswer
     • bAxe, Woodcutter, mover, choppper
     • cMango, oconut, paddy, lemon
     • dTrunk, tendril, stock, things
     ›Explanation

     Option A is correct because each element matches a specific plant example with its botanical growth habit: Neem is a tree, Melon is a climber, Weed represents grass, and Tea is cultivated as a shrub. Option B: It lists forestry tools and occupations rather than botanical classifications of plants. Option C: It pairs coconut with climber, but a coconut palm is a tree, not a climber. Option D: It lists anatomical plant parts and general terms rather than specific plant examples matching botanical habits.

159. Q159Series, analogy and odd man out

     ___ is to cripple as curl is to ___ as to ___ as ___ is to easy as curt is to

     • aLegs, hair, topic, mannersAnswer
     • bCeamp, reptile, curtail, speech
     • cCrutch, comb, words, rude
     • dLame, pain style, speech

     Explanation coming soon.

160. Q160Letters, literature and general English knowledge

     Mahadevi Varma is a __________

     • aHindi poetessAnswer
     • bOpposition leader in Uttar Pradesh
     • cScriptwriter
     • dEducationist
     ›Explanation

     Option A is correct because Mahadevi Varma was one of the foremost Indian poets of Hindi literature, widely revered as one of the four foundational pillars of the Chhayavad era. Option B: She was a literary icon and social worker rather than an opposition political leader in Uttar Pradesh. Option C: She did not work as a film scriptwriter; her contributions lie in Hindi poetry, essays, and memoirs. Option D: While she headed Prayag Mahila Vidyapeeth, her primary identity tested across examinations is as a Hindi poetess.