టీజీపీఎస్సీ గ్రూప్-1 ప్రిలిమ్స్ 1994
134 ప్రశ్నలు, ప్రతిదానికి అధికారిక సమాధానం మరియు వివరణ.
ఒకే ప్రశ్న పలు సంవత్సరాల్లో వస్తే, మొదటిసారి అడిగిన సంవత్సరం కింద చూపిస్తాం.
- Q81Environmental law, institutions and treaties
Due to which of the following was the right to life in Article 21 expanded to include the right to live in a clean environment?
- aRural court cases in Kerala
- bManeka Gandhiసరైన సమాధానం
- cEdiyad case
- dBhopal case
వివరణ
Option B is correct because the Supreme Court judgment in the Maneka Gandhi case (1978) fundamentally broadened the interpretation of Article 21 from mere animal existence to a life of dignity, which subsequently enabled the judiciary to read the right to a wholesome and clean environment into the right to life. Option A: Rural court cases in Kerala dealt with local environmental grievances rather than establishing the broad constitutional doctrine expanding Article 21. Option C: The Ediyad case is not a recognized landmark Supreme Court precedent for the expansion of Article 21. Option D: The Bhopal case dealt primarily with absolute liability, mass tort compensation, and industrial disaster management rather than originating this interpretive shift of Article 21.
- Q82Defence technology
Recently, a medium-range missile successfully launched from Chandigarh, from India's which hits a surface target
- aPrithviసరైన సమాధానం
- bAbras-1B
- cRohini
- dAgni
అధికారిక సమాధానం చూపించాం. వివరణ సమీక్షలో ఉంది.
- Q83SCHOOL BIOLOGY: life sciences as the papers actually ask them
What produces energy in a cell
- aChloroplast
- bNucleus
- cEnzyme
- dMitochondriaసరైన సమాధానం
వివరణ
Option D is correct because mitochondria are the primary sites of cellular respiration, breaking down nutrients to produce usable energy in the form of ATP. Option A: Chloroplast is responsible for photosynthesis in plant cells by absorbing solar energy, rather than generating metabolic ATP for general cellular work. Option B: Nucleus houses the genetic material of the cell and regulates cellular activities rather than producing cellular energy. Option C: Enzyme is a biological catalyst that accelerates chemical reactions, not an organelle that produces cellular energy.
- Q84SCHOOL BIOLOGY: life sciences as the papers actually ask them
Edible part of the mother
- aUnderground stem
- bUnderground leaves of the plant
- cModified fleshy underground leaves, and stemసరైన సమాధానం
- dMilk, leaves, and stem of the plant
వివరణ త్వరలో.
- Q85SCHOOL BIOLOGY: life sciences as the papers actually ask them
Cause of Niriritam
- aLack of magnesium in the soilసరైన సమాధానం
- bLack of magnesium in the plant
- cLack of chlorophyll
- dLack of chloroplast
అధికారిక సమాధానం చూపించాం. వివరణ సమీక్షలో ఉంది.
- Q86SCHOOL BIOLOGY: life sciences as the papers actually ask them
What is the angular growth of horns called?
- aPlagiotropismసరైన సమాధానం
- bGravitropism
- cPhototropism
- dHydrotropism
వివరణ
Option A is correct because plagiotropism refers to growth oriented at an oblique angle to the primary directional stimulus such as gravity, commonly used in anatomy and botany to describe angular growth patterns. Option B: Gravitropism refers strictly to growth oriented directly parallel (positive or negative) to the vector of gravity. Option C: Phototropism is directional growth in response to a light stimulus. Option D: Hydrotropism is directional growth in response to moisture or water gradients.
- Q87SCHOOL BIOLOGY: life sciences as the papers actually ask them
Darwin's proposed theory of organic evolution was based on what?
- aInheritance of acquired characteristics
- bNatural selectionసరైన సమాధానం
- cFinches
- dGeographical isolation
వివరణ
Option B is correct because Charles Darwin proposed natural selection as the principal mechanism of organic evolution, whereby individuals with favourable variations are more likely to survive and reproduce. Option A: Inheritance of acquired characteristics is the core concept of Lamarckism, formulated by Jean-Baptiste Lamarck. Option C: Finches observed on the Galapagos Islands served as empirical evidence of adaptive radiation, not the name of the overarching evolutionary theory. Option D: Geographical isolation is an isolating mechanism that aids speciation, but it is not the foundation of Darwin's evolutionary theory.
- Q88SCHOOL BIOLOGY: life sciences as the papers actually ask them
Who discovered the DNA molecule model?
- aWatson and Crickసరైన సమాధానం
- bHar Gobind Khorana
- cSwaminathan
- dJ.C. Bose
వివరణ
Option A is correct because James Watson and Francis Crick deciphered and proposed the double-helical model of the DNA molecule in 1953. Option B: Har Gobind Khorana is celebrated for deciphering the genetic code and synthesizing the first artificial gene, not discovering the DNA double helix model. Option C: Swaminathan is recognized as the father of the Green Revolution in India for his work on high-yielding wheat varieties. Option D: J.C. Bose made pioneering contributions to plant physiology and wireless communication, not nucleic acid structural biology.
- Q89SCHOOL BIOLOGY: life sciences as the papers actually ask them
On what does the sex determination of a male child depend?
- aFatherసరైన సమాధానం
- bMother
- cMother-Father
- dMale hormone, testosterone
వివరణ
Option A is correct because the father produces two types of sperm carrying either an X or a Y chromosome, and the child develops into a male only when an ovum is fertilised by a Y chromosome-bearing sperm from the father. Option B: The mother contributes only an X chromosome through the ovum and therefore does not determine whether the child will be male or female. Option C: While both parents contribute genetic material, sex determination specifically depends solely on the sperm type provided by the father. Option D: Testosterone directs male phenotypic differentiation during embryogenesis, but sex determination at conception is established entirely by the father's sex chromosome.
- Q90SCHOOL BIOLOGY: life sciences as the papers actually ask them
What is the cause of Foot-and-Mouth disease in cattle?
- aBacteria
- bFungi
- cVirusసరైన సమాధానం
- dProtozoa
వివరణ
Option C is correct because Foot-and-Mouth Disease is an acute, highly communicable viral infection of domestic and wild cloven-hoofed animals, caused by an Aphthovirus belonging to the family Picornaviridae. Option A: Bacteria cause infections like anthrax and blackleg, not Foot-and-Mouth disease. Option B: Fungi cause dermatomycoses such as ringworm, not this vesicular viral disease. Option D: Protozoa are responsible for diseases like babesiosis and theileriosis.
- Q91HUMAN BODY, NUTRITION AND DISEASE
What is the reason for blood not clotting in blood vessels?
- aAbsence of fibrinసరైన సమాధానం
- bPresence of thromboplastin
- cAbsence of fibrinogen
- dAbsence of calcium
వివరణ
Option A is correct because blood remains fluid inside intact blood vessels because insoluble fibrin threads are absent, as the coagulation cascade is not activated. Option B: Thromboplastin initiates blood coagulation upon tissue trauma and is not present in active form to prevent clotting. Option C: Fibrinogen is normally present in blood plasma as an abundant, soluble precursor protein. Option D: Calcium ions are constantly present in circulating blood and are necessary for normal physiology as well as clotting.
- Q92HUMAN BODY, NUTRITION AND DISEASE
Insulin is a?
- aFat
- bHormoneసరైన సమాధానం
- cPigment
- dEnzyme
వివరణ
Option B is correct because insulin is a peptide hormone produced by the endocrine pancreas to regulate the metabolism of carbohydrates, fats, and proteins. Option A: Insulin is composed of amino acid chains linked by disulfide bonds, not fatty acids or lipids. Option C: Insulin does not provide color to biological tissues and is not a pigment. Option D: Insulin is a signaling chemical messenger, not an enzyme that directly catalyzes biochemical conversions.
- Q93HUMAN BODY, NUTRITION AND DISEASE
The most important source of Calcium is?
- aMeat
- bEgg
- cMilkసరైన సమాధానం
- dAll
వివరణ
Option C is correct because milk and dairy products are the richest and most readily absorbable dietary sources of calcium for the human body. Option A: Meat provides protein, iron, and B vitamins, but contains very little calcium. Option B: Egg contains most of its calcium in the inedible shell, while the edible portion contains relatively small amounts compared to milk. Option D: All is incorrect because meat and the edible parts of eggs are not significant calcium sources.
- Q94SCHOOL CHEMISTRY
What is obtained from carbon?
- aKanthiyam
- bFerrogenసరైన సమాధానం
- cCarbon
- dDermatogen
వివరణ త్వరలో.
- Q95SCHOOL CHEMISTRY
Who discovered the insecticidal property of DDT?
- aPaul Müllerసరైన సమాధానం
- bStanley Miller
- cT.H. Morgan
- dT.R. Malthus
వివరణ
Option A is correct because the Swiss chemist Paul Hermann Müller discovered the insecticidal properties of DDT (dichlorodiphenyltrichloroethane) in 1939, for which he was awarded the Nobel Prize in Physiology or Medicine in 1948. Option B: Stanley Miller is known for the Miller-Urey experiment simulating prebiotic chemical evolution, not for research on insecticides. Option C: T.H. Morgan is known for his work on the genetic role of chromosomes using Drosophila melanogaster. Option D: T.R. Malthus was an economist and demographer famous for his theories on population growth.
- Q96SCHOOL CHEMISTRY
Glucose is a?
- aReducing sugarసరైన సమాధానం
- bNon-reducing sugar
- cDerived from protein
- dNone of these
వివరణ
Option A is correct because glucose has a free aldehyde group on its open-chain structure that readily oxidizes, allowing it to reduce Fehling's solution, Benedict's reagent, and Tollens' reagent. Option B: Non-reducing sugars lack free anomeric hydroxyl groups, such as sucrose, which cannot act as a reducing agent. Option C: Glucose is a carbohydrate formed through photosynthesis, not a derivative of amino acids or proteins. Option D: None of these is incorrect because reducing sugar accurately characterizes glucose.
- Q97SCHOOL PHYSICS
The reason for the blue color of the sky
- aReflection of light
- bRefraction of light
- cDiffraction of light
- dScattering of lightసరైన సమాధానం
వివరణ
Option D is correct because sunlight entering the atmosphere undergoes Rayleigh scattering by gas molecules, which scatters shorter wavelengths like blue far more effectively than longer wavelengths. Option A: Reflection bounces light off surfaces without selectively separating shorter wavelengths across the sky. Option B: Refraction bends light through differing air densities, causing effects like mirages rather than the uniform blue coloration of the sky. Option C: Diffraction causes light to bend around obstacles and produces rings or fringes rather than widespread blue scattering.
- Q98SCHOOL PHYSICS
The speed of sound in humid air
- ais less than in dry air
- bis more than in dry airసరైన సమాధానం
- cis equal to that in dry air
- ddoes not depend on humidity
వివరణ
Option B is correct because water vapor is less dense than dry air, which lowers the overall density of the air mixture and causes sound to propagate faster. Speed of sound formula: v = square root of (gamma * P / rho) Molar mass of water vapor: 18 g/mol Average molar mass of dry air: approximately 29 g/mol Option A: Sound travels faster in humid air because the density of the medium is reduced. Option C: The presence of water vapor reduces the bulk density of air, so the speeds cannot be equal. Option D: Humidity alters the density of air, directly changing the speed of sound.
- Q99SCHOOL PHYSICS
Applied current
- amay be 90 degrees lagging to voltageసరైన సమాధానం
- bmay be 90 degrees leading to voltage
- cmay be in the same phase with voltage
- dmay be 90 degrees lagging or 90 degrees leading to voltage
వివరణ త్వరలో.
- Q100SCHOOL PHYSICS
Two electric bulbs have tungsten filaments. The resistance of these two is r and R respectively (R is greater than r). If these two bulbs are connected in series,
- aThe bulb with resistance r glows brighter.
- bThe bulb with resistance R glows brighter.సరైన సమాధానం
- cBoth glow with the same brightness.
- dNothing can be said for sure.
వివరణ
Option B is correct because both bulbs share the same electric current in a series circuit, and power dissipation increases directly with resistance. In a series circuit, the current I passing through both bulbs is identical. Power dissipated as light and heat is P = I^2 * R. Because R is greater than r, the power dissipated across R is greater than across r. Option A: The bulb with smaller resistance r dissipates less electrical power when current is constant. Option C: The bulbs dissipate different amounts of electrical power because their resistance values are not equal. Option D: The brightness can be definitively calculated using the series current relationship and Joule heating law.
- Q101SCHOOL PHYSICS
The source of energy in the Sun?
- aSpontaneous
- bRadioactive disintegration
- cNuclear fission
- dNuclear fusionసరైన సమాధానం
వివరణ
Option D is correct because the source of energy in the Sun is nuclear fusion, where hydrogen nuclei fuse together under extreme temperature and pressure to form helium, releasing enormous amounts of energy. Option A: Spontaneous is wrong because spontaneous chemical changes do not have the energy density required to power stars. Option B: Radioactive disintegration is wrong because radioactive decay accounts for only minor internal planetary heating, not stellar energy output. Option C: Nuclear fission is wrong because fission involves splitting heavy nuclei like uranium, which is not the process driving the Sun.
- Q102SCHOOL PHYSICS
The instrument used to measure humidity
- aThermometer
- bBarometer
- cHygrometerసరైన సమాధానం
- dHydrometer
వివరణ
Option C is correct because a hygrometer measures humidity, which is the concentration of water vapor present in the air or other gases. Option A: measures ambient or body temperature. Option B: measures atmospheric pressure to forecast weather patterns. Option D: measures the density or specific gravity of liquids relative to water.
- Q103Logical reasoning and analytical ability
B is greater than C, X is smaller than C. But C is never greater than B, therefore
- aX is never greater than Bసరైన సమాధానం
- bX is never smaller than B
- cX is never smaller than C
- dNone of these
వివరణ
Option A is correct because combining the given inequalities yields B > C > X, which establishes that B is strictly greater than X, meaning X can never be greater than B. B > C C > X Combining the two: B > C > X Therefore, B > X, so X < B Option B: contradicts the inequality B > X, which shows X is always strictly smaller than B. Option C: contradicts the premise X < C, which explicitly states X is smaller than C. Option D: an absolute conclusion is validly derived from the given statements.
- Q104Logical reasoning and analytical ability
Answer questions 131 to 134 on the basis of the following: A causes B or C, but not both. F occurs only when B occurs. D occurs when B or C occurs. E occurs only when C occurs. J occurs only when E or F occurs. D causes G or H or both. H occurs when E occurs. G occurs when F occurs. When A occurs, what can occur?
- aF and H
- bE and H
- cD only
- dF, G and Dసరైన సమాధానం
వివరణ త్వరలో.
- Q105Logical reasoning and analytical ability
Answer questions 131 to 134 on the basis of the following: A causes B or C, but not both. F occurs only when B occurs. D occurs when B or C occurs. E occurs only when C occurs. J occurs only when E or F occurs. D causes G or H or both. H occurs when E occurs. G occurs when F occurs. When B occurs, what occurs?
- aF and Gసరైన సమాధానం
- bBoth E and F
- cD
- dD and H
వివరణ త్వరలో.
- Q106Logical reasoning and analytical ability
Answer questions 131 to 134 on the basis of the following: A causes B or C, but not both. F occurs only when B occurs. D occurs when B or C occurs. E occurs only when C occurs. J occurs only when E or F occurs. D causes G or H or both. H occurs when E occurs. G occurs when F occurs. When J occurs, what occurs?
- aEసరైన సమాధానం
- bBoth E and F
- cG
- dB or C
వివరణ త్వరలో.
- Q107Logical reasoning and analytical ability
Answer questions 131 to 134 on the basis of the following: A causes B or C, but not both. F occurs only when B occurs. D occurs when B or C occurs. E occurs only when C occurs. J occurs only when E or F occurs. D causes G or H or both. H occurs when E occurs. G occurs when F occurs. When it is not known what occurred, what is likely to occur?
- aD onlyసరైన సమాధానం
- bD and A
- cD and F
- dD, A and F
వివరణ త్వరలో.
- Q108Logical reasoning and analytical ability
Find the missing number in the figure?
- a6సరైన సమాధానం
- b42
- c111
- dNone of these
వివరణ త్వరలో.
- Q109Logical reasoning and analytical ability
All members of the Tennis Club are also members of the Badminton Club. No woman plays Badminton. Which of the following is true?
- aNo member of the Tennis Club plays Badminton
- bSome women are members of the Tennis Club
- cSome women play Tennis
- dNo woman is a member of the Tennis Clubసరైన సమాధానం
వివరణ
Option D is correct because all Tennis Club members are Badminton Club members, and since no woman plays badminton, it is impossible for any woman to belong to the Tennis Club. Option A: The premise explicitly states that all Tennis Club members are members of the Badminton Club. Option B: A woman cannot belong to the Tennis Club without also belonging to the Badminton Club, which contradicts the premise. Option C: The premises do not support this claim and establish that women cannot belong to the Tennis Club.
- Q110Series, analogy and odd man out
What is the next number in this series? 3, 7, 10, 11, ?
- a16
- b17సరైన సమాధానం
- c18
- d25
అధికారిక సమాధానం చూపించాం. వివరణ సమీక్షలో ఉంది.
- Q111Shapes, figures and Venn diagrams
How many triangles are there in the following figure?
- a21
- b42
- c111
- dNone of theseసరైన సమాధానం
వివరణ త్వరలో.
- Q112Shapes, figures and Venn diagrams
All faces of a cube are colored. The bottom face is red, and the top face is white. Green, yellow, blue, and pink colors are painted on each vertical face in a clockwise direction. If the yellow colored face is the bottom face, what is the color of the top face?
- aRed
- bPinkసరైన సమాధానం
- cBlue
- dGreen
వివరణ
Option B is correct because in a cube with adjacent vertical faces painted green, yellow, blue, and pink clockwise, the face opposite to yellow is pink, so placing yellow at the bottom places pink at the top. Top face is opposite to bottom face: White is opposite to Red Clockwise cyclic order of vertical faces: Green, Yellow, Blue, Pink Opposite vertical face pairs: Green is opposite to Blue; Yellow is opposite to Pink When Yellow is at the bottom, its opposite face Pink must be at the top Option A: Red is opposite to White, not Yellow. Option C: Blue is opposite to Green, adjacent to Yellow. Option D: Green is opposite to Blue, adjacent to Yellow.
- Q113Number system and basic operations
♦ means Division, ♢ means Addition, ∆ means Equal to, Φ means Division, Θ means Multiplication. Then which of the following is true?
- a(6 + 2) ÷ 2 = (2 × 8) ÷ 1
- b(81 ÷ 4) × 3 = 4 ÷ 16 ÷ 3
- c(18 ÷ 4) × 3 = (8 ÷ 15) × 7
- d(15 ÷ 4) × 3 = (60 ÷ 2) + 3సరైన సమాధానం
వివరణ త్వరలో.
- Q114Number system and basic operations
In a cup of 154 coats, white coats are 3 less than red coats. White coats are 5 more than green coats. If the coats are in red, white, and green colors, how many red coats are there?
- a50
- b55సరైన సమాధానం
- c60
- d64
వివరణ
Option B is correct because expressing all coats in terms of red coats and equating their sum to 154 yields 55 red coats. Let the number of red coats be R. White coats = R - 3 Green coats = (R - 3) - 5 = R - 8 Total coats = R + (R - 3) + (R - 8) = 154 3R - 11 = 154 3R = 165 R = 55 Option A: Incorrect because if red coats are 50, the total coats would be 3(50) - 11 = 139, not 154. Option C: Incorrect because if red coats are 60, the total coats would be 3(60) - 11 = 169, not 154. Option D: Incorrect because if red coats are 64, the total coats would be 3(64) - 11 = 181, not 154.
- Q115Number system and basic operations
Shyama and Roopa are sisters. Each of these two has two children, twins and triplets. Shyama first had twins. But Roopa first had triplets. Shyama commented that the sum of her children's ages is equal to the product of their ages. If Roopa could also make the same comment about her children, what are her sister's children's ages?
- aShyama's age of twins 2, age of triplets 1; Roopa's age of twins 1 and age of triplets 2
- bShyama's age of twins 6 and age of triplets 3; Roopa's age of twins 3 and age of triplets 6
- cShyama's age of twins 1, age of triplets 1; Roopa's age of twins 1, age of triplets 2సరైన సమాధానం
- dShyama's age of twins 3, age of triplets 2; Roopa's age of twins 2, age of triplets 3
అధికారిక సమాధానం చూపించాం. వివరణ సమీక్షలో ఉంది.
- Q116Number system and basic operations
In a library, 'C' rupees are charged for the first week, and then 'F' rupees per day for borrowed books. Then what is the charge for 'D' days (D is more than seven days)?
- ac+fd
- bc+f(d-7)సరైన సమాధానం
- cf+cd
- d7c+f(d-7)
వివరణ
Option B is correct because the fixed charge C covers the entire first week of 7 days, and the daily charge F applies only to the remaining (D - 7) days. Fixed charge for first 7 days = C Remaining days charged at daily rate = D - 7 Cost for remaining days = F(D - 7) Total charge = C + F(D - 7) Option A: c+fd wrongly applies the daily rate F to the entire duration of D days without subtracting the first 7 days. Option C: f+cd wrongly treats F as the fixed initial fee and multiplies C by the total days. Option D: 7c+f(d-7) erroneously multiplies the weekly charge C by 7 instead of treating C as the total cost for the first week.
- Q117Number system and basic operations
A=2/3B, B=2/3C, C=2/3 then what is B's value as a part of D?
- a8/27
- b2/3
- c4/9సరైన సమాధానం
- d4/3
వివరణ త్వరలో.
- Q118Ratio, percentage and commercial arithmetic
Three pillars, having a height of 120 meters per hour, are climbed, taking a total of 36 minutes. If the time taken to climb the pillars is in the ratio 3:4:5, what is the height of the tallest pillar?
- a1. 15 m.
- b2. 20 m.
- c3. 25 m.
- d4. 30 m.సరైన సమాధానం
వివరణ
Option D is correct because climbing at a rate of 120 meters per hour for the time allocated to the tallest pillar gives a height of 30 meters. Total time = 36 minutes Ratio of times = 3 : 4 : 5 Sum of ratio terms = 3 + 4 + 5 = 12 Time for tallest pillar = (5 / 12) * 36 = 15 minutes = 1/4 hour Climbing speed = 120 meters per hour Height of tallest pillar = 120 * (1/4) = 30 meters Option A: 15 m is incorrect because it corresponds to climbing for only 7.5 minutes instead of 15 minutes. Option B: 20 m is incorrect because it is the height of the middle pillar, which takes 12 minutes to climb. Option C: 25 m is incorrect because it does not correspond to the distance climbed in 15 minutes at 120 meters per hour.
- Q119Ratio, percentage and commercial arithmetic
When students went for lunch, a thief entered the classroom. When the students returned, 80% of pencils, 85% of pens, 75% of rulers, and 68% of erasers were lost. What is the percentage of those who lost all four items?
- a8సరైన సమాధానం
- b12
- c16
- d20
వివరణ
Option A is correct because the minimum percentage of students who lost all four items is found by subtracting the sum of the non-loss percentages from 100%. Percentage not losing pencils = 100 - 80 = 20% Percentage not losing pens = 100 - 85 = 15% Percentage not losing rulers = 100 - 75 = 25% Percentage not losing erasers = 100 - 68 = 32% Maximum percentage missing at least one item = 20 + 15 + 25 + 32 = 92% Minimum percentage losing all four items = 100 - 92 = 8% Option B: 12% is an erroneous calculation of the overlap boundary. Option C: 16% incorrectly doubles the minimum non-overlap residual. Option D: 20% takes the smallest individual loss complement instead of the combined bound.
- Q120Time, work, speed and distance
The grass oil in a lantern can be cut in X hours. After two hours, rain started, what is the uncut portion of the grass?
- a2-X/X
- bX/2
- cX-2/X%
- dCannot be determinedసరైన సమాధానం
వివరణ త్వరలో.
మీ ప్రోగ్రెస్ సేవ్ చేసుకోండి
ఎక్కడ ఆపారో గుర్తుంచుకోవడం, బుక్‌మార్క్‌లు, అంశాల వారీ ప్రశ్నల సెట్లు తెలుగు నోట్స్‌తో. ప్రారంభ యాక్సెస్ కోసం వెయిట్‌లిస్ట్‌లో చేరండి.