This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following reaction will never occurA) Cu + H2SO4 → CuSO4 + H2B) Mg + H2SO4 → MgSO4 + H2C) 2Al + 6HCl → 2AlCl3 + 3H2D) Fe + 2HCl → FeCl + H2 |
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Answer» A) Cu + H2SO4 → CuSO4 + H2 |
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| 2. |
By which reaction metal is obtained from metal oxideA) LiquificationB) ReductionC) CalcinationD) Roasting |
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Answer» The answer is B) Reduction |
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| 3. |
Which is the correct sequence of the components of a reflex arc? |
| Answer» (d) Receptors → Sensory neuron → Spinal cord → Motor neuron → Muscle | |
| 4. |
(a) cell body(b) axonal end(c) dendritic end(d) axon |
| Answer» (b) axonal end | |
| 5. |
Conversion of electrical signal to chemical signal occurs at:A) Dendrite of a neuronB) Axon of a neuronC) Nerve ending of a neuronD) Cell body of a neuron |
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Answer» C) Nerve ending of a neuron |
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| 6. |
Which disease is found in human due to the deficiency of iodine? |
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Answer» Goitre is the disease that occurs due to deficiency of iodine. |
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| 7. |
Observe the following chemical equations and identify the correct statement.(i) CuSO4 + Fe → FeSO4 + Cu(ii) 2AgNO3 + Cu → Cu(NO3)2 + 2Ag(A) Copper is more reactive than Iron and Silver(B) Iron is less reactive than Copper and Silver(C) Copper is more reactive than Silver but less reactive than Iron(D) Silver is more reactive than Copper and Iron |
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Answer» (A) Copper is more reactive than Iron and Silver |
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| 8. |
Write the name of pigment found in leaf of green plants. |
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Answer» Chlorophyll is the pigment found in leaf of a green plant. |
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| 9. |
What is the pH value of pure water? |
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Answer» 7 is the pH value of pure water. |
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| 10. |
A solution turns red litmus blue, its pH is likely to be : (a) 1(b) 4 (c) 5 (d) 10 |
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Answer» Correct option (d) 10 Explanation: Because red litmus turns blue in basic medium and baswe have pH more than 7. |
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| 11. |
Evaluate 7! – 5! |
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Answer» 7! – 5! = (7 × 6 × 5 × 4 × 3 × 2 × 1) – (5 × 4 × 3 × 2 × 1) = 5040 – 120 = 4920 |
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| 12. |
Volt (v) is equal to which of the followings, where C = Coulomb, J = joule, A = Ampere.(A) C/J (B) J/C(C) J/A (D) A/J |
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Answer» Volt (v) is equal to J/C, where C = Coulomb, J = joule. |
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| 13. |
Identify the correct pair of analogous organs among the following(A) The forelimb of man and the forelimb of a frog(B) The wing of a butterfly and the wing of a bat(C) The wing of a bird and the wing of a bat(D) The forelimb of lizard and the forelimb of a frog |
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Answer» (C) The wing of bird and the wing of a bat. |
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| 14. |
Fill in the blanks (i) Those reactions in which heat is released along with formation of products are called ___________ reactions.(ii) There are ___________ group in modern periodic table.(iii) Mendel proposed the law of .................... (iv) The least distance of distinct vision for young adult with normal vision in about ................ (v) The energy transfer is ..... percent from one tropical level to another. |
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Answer» (i) Those reactions in which heat is released along with formation of products are called exothermic reactions. (ii) There are 18 group in modern periodic table. (iii) Mendel proposed the law of inheritance. (iv) The least distance of distinct vision for young adult with normal vision in about 25 cm. (v) The energy transfer is 10% percent from one tropical level to another. |
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| 15. |
The kidneys in human beings are a part of the system for : (a) Nutrition(b) Respiration (c) Excretion(d) Transportation |
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Answer» The kidneys in human beings are a part of the system for Excretion |
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| 16. |
Find n if nC7 = nC6 |
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Answer» If nC7 = nC6 ∴ n = 7 + 6 = 13 (∵ nCr = nCr-1). |
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| 17. |
Explain combination reaction with an example and chemical equation. |
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Answer» Combination reaction: The reaction of two or more substances (either elements or compounds) to produce a new substance is called a combination reaction |
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| 18. |
Red coloured light is used in traffic signals to indicate the vehicles to stop, because compared to other colours red light(A) has high frequency(B) scatters more(C) has less wavelength(D) scatters less |
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Answer» (D) Scatters less |
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| 19. |
The human eye forms the image of an object at its : (a) a cornea (b) iris(c) Pupil(d) retina |
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Answer» The human eye forms the image of an object at its retina |
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| 20. |
Which of the following constitute a food chain?(a) Grass, Wheat, and Mango(b) Grass, Goat and Human(c) Goat, Cow and Elephant(d) Grass, Fish and Goat |
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Answer» Correct option (b) Grass, Goat and Human Explanation: Grass → Goat → Human |
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| 21. |
Explain.the terms with example in each case : i) oxidation & ii) Reduction. |
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Answer» i) Oxidation: It is a process in which ii) Reduction: It is a process in which |
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| 22. |
The substance that is oxidised in the following chemical reaction isMnO2 + 4HCl → MnCl2 + 2H2O + Cl2(A) HCl(B) MnO2(C) MnCl2(D) H2O |
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Answer» The answer is (A) HCl |
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| 23. |
S.I. unit of electric current is - (a) Joule(b) Watt(c) Volt (d) Ampere |
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Answer» S.I. unit of electric current is Ampere. |
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| 24. |
The SI unit of electric current is(A) Ohm(B) Volt(C) Ampere(D) Watt |
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Answer» The answer is (C) Ampere. |
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| 25. |
Given below are two statements :One is labelled as Assertion A and the other is labelled as Reason R.Assertion A : n-p-n transistor permits more current than a p-n-p transistor.Reason R : Electrons have greater mobility as a charge carrier.Choose the correct answer from the options given below :(A) Both A and R true. and R is correct explanation of A.(B) Both A and R are true but R is NOT the correct explanation of A.(C) A is true but R is false.(D) A is false but R is true. |
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Answer» (A) Both A and R true. and R is correct explanation of A. |
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| 26. |
The SI unit of electric power is(A) Ohm(B) Volt(C) Ampere(D) Watt |
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Answer» The answer is (D) Watt |
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| 27. |
For using a multimeter to identify diode from electrical components. choose the correct statement out of the following about the diode : (A) It is two terminal device which conducts current in both directions. (B) It is two terminal device which conducts current in one direction only (C) It does not conduct current gives an initial deflection which decays to zero.(D) It is three terminal device which conducts current in ne direction only between central terminal and either of the remaining two terminals |
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Answer» (B) It is two terminal device which conducts current in one direction only In forward bias diode conducts In revers bias it does not conducts. |
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| 28. |
Growth of thread like structures along with the gradual spoilage of tomato can be observed when a cut tomato is kept aside for four days. Interpret the causes for this change. |
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Answer» (i) The thread like structures that grow on the tomato are hyphae of Rhizopus (Bread mould) (ii) They have rod like structures called sporangia. (iii) Sporangia contain spores, they are reproductive structures. (iv) When spores come into contact with moist surface, they begin to grow. Therefore cut tomato gets spoiled gradually. |
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| 29. |
In the figure as the current changes in coil-1 the galvanometer connected to coil-2 shows deflection. Explain the phenomenon that causes this effect. Name and state the law used to know the direction of current in the device that works due to this phenomenon. |
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Answer» Electromagnetic Induction is the phenomenon that causes this effect. An electric current produced in a closed circuit by a magnetic field is called an induced current. This phenomenon is called electromagnetic induction. The law used to know the direction of current in the device is called flemmings Right Hand Rule. Flemmings right hand rule states that Stretch the thumb, forefinger and middle finger of right hand so that they are perpendicular to each other, if the forefinger indicates the direction of the magnetic field and the thumb shows he direction of motion of the conductor then the middle finger will show the direction of induced current. |
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| 30. |
“We cannot establish nuclear power reactors everywhere though large amount of electricity is produced by nuclear energy” Why? Explain. |
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Answer» Because: 1. Storage and disposal of spent/used fuels and the uranium continuously decaying into harmful subatomic particles. 2. Improper nuclear waste storage & disposal may lead to environmental contamination. 3. There is also a rise of nuclear accidents causing due to leakage of nuclear radiation. |
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| 31. |
The atomic numbers of two elements A and B are 11 and 12 respectively. Which element exhibits highest metallic property? Why? Write the molecular formula of the compounds formed when these elements combine with the element ‘Z’ having atomic number 8. |
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Answer» A – 11 – Sodium |
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| 32. |
Let `A = {phi, {phi}, {phi, {phi}}}, B = {{phi}, { {phi}}}`. If m denotes the number of elements in power set of A and n denotes the number of elements in power set of B, then `2log_(n)m` has the value equal to -A. 1B. 2C. 3D. 4 |
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Answer» Correct Answer - C Let `A = {phi, {phi}, {phi, {phi}}}` …………. Hence `m = 8, n = 4` `:. 2log_(n)m=2log_(4)8=log_(4)8^(2)=log_(4)64` `log_(4)4^(3)=3log_(4)4=3` |
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| 33. |
Let `A = {1,2,3}` and R be a relation on A defind as `R = {(1,2), (2,3),(1,3)}`, then R is(a) reflexive (b) symmetric (c) transtive (d) none of theseA. Reflexive but neither symmetric nor transitiveB. Symmetric but neither reflexive nor transitiveC. Transitive but neither reflexive nor symmetricD. Neither reflexive nor symmetric and not transitive |
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Answer» Correct Answer - C Let `A = {1,2,3}` and ……….. Obvious by definition |
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| 34. |
Explain the cleansing action of soap. |
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Answer» The molecules of soaps are sodium or potassium salts of long chain carboxylic acids. The ionic end of soaps interacts with water while the carbon chain interacts with oil. The soap molecules thus form structures called micelles where one end of the molecules is towards the oil droplet while the ionic end faces outside. This forms an emulsion in water. The soap micelle thus helps in pulling out the dirt in water. |
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| 35. |
Tinning : Tin : : Galvanizing : _______ |
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Answer» Tinning : Tin : : Galvanizing : Zinc |
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| 36. |
Observe the following diagram and write down the answers of the following questions: (i) What is the process called? (ii) Defind it. |
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Answer» a) This process is regulation. b) Regulation : Regulation is defined at the phenomenon in which the IQ melt to the water below O°C on the application of pressure and refreezes back to ice on the removal of pressure. |
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| 37. |
Why are the small number of surviving tigers a cause of worry from the point of view of genetics? |
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Answer» Small number of surviving tigers a cause of worry from the point of view of genetics. If there is no exchange of genes between members of the species. New set of genes will not form. Diverse forms of life occur on Earth due to the evolutionary process is old tigers dies, there is no new species is present. Thus making the organisms of that species extinct. |
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| 38. |
How do Mendel’s experiments show that the traits are inherited independently? Explain. |
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Answer» Mendel used a dihydrid cross between pure pea plants to show that traits are inherited cross between pure pea plants to show that traits are inherited independently. He selected a pea plant with round yellow (RRYY) & wrinkled green (rryy). The obtained phenotypic ratio in F2 generation was 9 : 3 : 3 : 1. |
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| 39. |
Describe the role of A.S.I. in tourism development? |
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Answer» The Archaeological Survey of India has safeguarded our rich history for 150 years. Sir William Jones initiated the archeological and historical pursuits in India. Publication of Asiatic Researches (1788) introduced a new area of interest on protection of the historical remains and numerous monuments in India. The surveys of Cunningham led to several discoveries such as monolithic capitals and other remains of Ashoka, specimens of architecture of Gupta and post-Gupta period; great stupa of Bharhut; identification of ancient cities namely: Sankisa, Sraswavit and kausambi. Treasure Trove Act 1878 is the premier institution in India concentrating on archaeological researches, explorations, excavations and protection and preservation of monuments and sites of national importance. A.S.I. functions under Ministry of Culture, Government of India. Its functions include:
Definition of a ‘monument’: structure, erection and monument tumulus, cave, rock structure inscription, monolith, historical, or archaeological, interest has been in existence not less than 100 years ( A.S.I.). There are approximately 3650 monuments under A.S.I., which include temples, mosques, tombs, churches, cemeteries, forts, palaces, stepwells, rock cut caves, and secular architecture that represent the remains or mounts/sites of civilizations. |
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| 40. |
A man with blood group A marries a woman with blood group O and their daughter has blood group O. Is this information enough to tell you which of the traits- blood group A or O- is dominant? Why or Why not? |
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Answer» The given information is not enough to tell us which of the traits- blood group A or O - is dominant. In blood heredity, blood type A is always dominant and blood type O is always recessive. Here, father’s blood group can be AA (homozygous) or AO (heterozygous) genotypically, where as that of mother can be OA or OO. For daughter to be born with blood group O, she must receive O type gene one each from father and mother. For this father must have heterozygous AO blood group and mother must have homozygous blood group OO. |
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| 41. |
What is the Full form of UNESCO? What are the major objectives of resolution adopted by General Conference of UNESCO in 1972? |
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Answer» UNESCO stands for the United Nations Educational Scientific and Cultural Organization. In 1972, the General Conference of UNESCO adopted a resolution with overwhelming enthusiasm creating thereby a ‘Convention concerning the protection of the World Cultural and Natural Heritage’. The main objectives were – 1.) to define the World Heritage in both cultural and natural aspects 2.) to enlist Sites and Monuments from the member countries which are of exceptional interest and universal value, the protection of which is the concern of all mankind 3.) to promote co-operation among all Nations and people to contribute for the protection of these universal treasures intact for future generations. |
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| 42. |
SABRE was launched in ________ (a) 1954 (b) 1964 (c) 1972 (d) 1982 |
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Answer» (b) 1964 SABRE was launched in 1964. |
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| 43. |
Define Sabre. |
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Answer» Sabre is a leading provider of technology for the Travel Industry. It provides a broad range of innovative products that enable travel e-commerce and services, and enhance airline, supplier and travel agency’s operations and their ability to serve the traveler. |
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| 44. |
Which device is used to convert the DC voltage from the battery into AC voltage? (a) Rectifier (b) Transformer (c) Inverter (d) Motor |
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Answer» Correct answer is (c) Inverter |
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| 45. |
SABRE stands for ________ (a) Semi-Automatic Business Related Environment (b) Semi-Automatic Business Response Environment (c) Semi-Automatic Best Research Environment (d) Semi-Automatic Business Research Environment |
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Answer» (d) Semi-Automatic Business Research Environment SABRE stands for Semi-Automatic Business Research Environment. |
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| 46. |
Which was the first company to develop a real-time computerized reservation system? (a) Emirates Airlines (b) American Airlines (c) United Airlines (d) British Airways |
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Answer» (b) American Airlines American Airlines was the first company to develop a real-time computerized reservation system. |
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| 47. |
Which one of the following is not a public interface to GDS?(a) GDS-based online travel agencies(b) Airline Websites (c) Opaque Sites (d) Transparent Sites |
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Answer» (d) Transparent Sites Transparent Sites is not a public interface to GDS. |
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| 48. |
Which one of the following is not a major GDS system? (a) World span (b) Amadeus (c) Galileo (d) Delta |
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Answer» (d) Delta Delta is not a major GDS system. |
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| 49. |
The distance by which the piston moves in an up-down or upward downward direction inside the cylinder is called the _____ of the pump. (a) Stroke (b) Torque (c) Centrifugal force (d) Rotation |
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Answer» Correct answer is (a) Stroke |
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| 50. |
What are the factors of the location of Iron and steel industries in India? |
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Answer» Factors of the location of Iron and Steel industries in India.
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