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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 among the following longitudes is drawn deviated to avoid the land areas? a. Equator b. Greenwich meridian c. International date line d 82/2° East longitude |
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Answer» Correct option: c. International date line |
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| 2. |
The standard meridian of India is 82‘/2° East longitude. Why do India consider this longitude as the standard meridian? |
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Answer» 82 1/2 ° East longitude passes almost through the middle of the country. |
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| 3. |
How are the standard meridian and standard time calculated by each country? OR Every country considers a particular longitude as their standard meridian for determining time. Why? |
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Answer» The local time would be different at each longitude. If we start calculating the local time at different places based on the longitude there, it would create lot of confusion. So each country in the world considers the longitude that passes almost through its middle as the standard meridian. The local time at the standard meridian is the standard time of the country |
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| 4. |
Why do certain countries consider more than one longitude as their standard meridians? Give an example for such a country. |
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Answer» It is not practical to follow only one standard time for the countries with wide longitudinal extent. So more than one longitudes are considered as standard meridians. Eg: Russia, China, USA |
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| 5. |
The season which includes March, April, May is ______. A) autumn B) summer C) spring D) winter |
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Answer» Correct option is C) spring |
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| 6. |
The season which includes June, July, August is ______. A) spring B) autumn C) winter D) summer |
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Answer» Correct option is D) summer |
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| 7. |
We shall be REACHING the station in 15 minutes. A) moving to B) leaving for C) staying at D) getting to E) taking from |
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Answer» Correct option is D) getting to |
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| 8. |
Two trains staring from the same place run at the rate of 50 km/hr and 55 km/hr respectively. What will they take to be 85 km apart, if they run in the same direction?1. 16 hrs2. 18 hrs3. 17 hrs4. 15 hrs |
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Answer» Correct Answer - Option 3 : 17 hrs Given Speed1 of the train = 50 km/hr Speed2 of the train = 55 km/hr Distance = 85 km Formula used ; Time = distance/speed Calculation ; We need to get the relative speed both train in the same direction ⇒ 55 - 50 = 5 km Then, time = 85/5 = 17 hr ∴ Time is 17 hr. |
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| 9. |
A train of length 450m travels with the speed of 50 m/s. The train crosses a man running in the same direction as the train in 10s. Find the speed of the man.1. 4 m/s2. 6 m/s3. 5 m/s4. 5.5 m/s5. 4.5 m/s |
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Answer» Correct Answer - Option 3 : 5 m/s Given: Length of the train = 450m Speed of the train = 50 m/s Time taken to cross the man = 10 seconds Formula used: Speed(S) = Distance(D)/Time(T) Calculation: Let the speed of the man be x m/s Speed at which train crossed the man = 450/10 m/s ⇒ 45m/s In the same direction, the speed subtracts ⇒ (50 – x) m/s = 45 m/s ⇒ x = 5 m/s ∴ The speed of the man is 5 m/s. |
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| 10. |
A man is sailing a boat with a speed of 20 km/hr and the speed of the current is 5 km/hr. If the distance, he covers against the current is 40 km then how much time he will take to cover the same distance along the direction of current?1. 1.7 hr2. 1.5 hr3. 1.4 hr4. 1.6 hr5. 1.3 hr |
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Answer» Correct Answer - Option 4 : 1.6 hr Given: Speed of boat = 20 km/hr Speed of current = 5 km/hr Distance covered against the current = Distance covered along the current = 40 km Formula used: Time taken = Total distance/Speed Speed of the boat along with the current = Speed of a boat + Speed of the current Calculation: Speed of boat along the current = (20 + 5) km/hr ⇒ 25 km/hr Time is taken to the covered distance along with the current = (40/25) hr ⇒ 8/5 hr ⇒ 1.6 hr ∴ The time taken to cover the distance along the current is 1.6 hr. |
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| 11. |
The series given below contains a sequence of alphabets and numbers. Identify the incorrect combination:i. derri0215deirrii. derrl0215deirriii. derri0215deirriv. derri0215deirr1. iii2. ii3. iv4. i |
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Answer» Correct Answer - Option 2 : ii Here, the incorrect combination is 'derrl0215deirr' as It contains a alphabet l before 0 which is different from rest of the options. As the rest of the options contain alphabet i before 0. This is shown below: derrl0215deirr - The alphabet in bold shows the mistake. Hence, "derrl0215deirr" is the correct answer. |
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| 12. |
If x = a cosθ , y = b sinθ then which of the following is values of dy/dx(A) -b/a cot θ (B) 0(C) b/a tan θ (D) -b/a tan θ |
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Answer» (A) -b/a cot θ |
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| 13. |
∫(1 - sin x)/(cos2x) dx equal to which of the following ?(A) tan x – sec x + c (B) sec x – tan x + c (C) tan x + sec x + c (D) None of these |
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Answer» (A) tan x – sec x + c |
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| 14. |
Derivative of xx with respect to x is equal to which of the following.(A) xx (logx + 1) (B) x/xx –1 (C) x . xx (D) 1 + logx |
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Answer» (A) xx (logx + 1) |
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| 15. |
You are Vaijanthi/Vijay from Prakasham Nagar, Secunderabad, Andhra Pradesh. Write a letter to Book Haven Store, requesting home delivery of the books, stationery and art materials you had ordered telephonically. Share the reason for being unable to pick up the goods in person. Confirm your address details and a convenient time slot. |
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Answer» Letter to Book Haven Store requesting home delivery of ordered goods – Reference - Inform Competency applied for overall expression • Inform about inability to pick in person, provide reason/s and forward request to deliver the goods at home • Present details of suitable time slot, conformation of address and phone number |
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| 16. |
As Sports Secretary of your school, write a letter to the Secretary of the Sports Authority of India, Delhi requesting him for details regarding the sports scholarships that are available for students |
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Answer» 20 April, 20XX S. Narula St. John’s School Ramapuram Chennai The Secretary Sports Authority of India New Delhi Sir, Sub: Information regarding sports scholarship I have come to know from my friend in Hyderabad that the Sports Authority of India awards scholarships to sports persons and athletes who distinguish themselves in various sports disciplines during their school days. The tenure of these sports scholarships varies from three to five years. Some of our athletes have topped at the district level and have been selected for national events. They are keen to know the availability of sports scholarships awarded under your benign guidance. The specific conditions and eligibility criteria may please be intimated to us. I hope you will provide the necessary information at the earliest. Yours faithfully S. Narula Sports Secretary To The Secretary Sports Authority of India New Delhi |
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| 17. |
Write a letter to the Police Commissioner (Traffic) about the inadequate parking facilities in the commercial area of Nungambakkam, which is causing a lot of inconvenience to the people. You may also offer your suggestions to solve it. You are Rakesh/Radhika, No. 12, Nungambakkam, Chennai. |
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Answer» 12 March, 20XX Radhika No. 12, Nungambakkam Chennai The Police Commissioner (Traffic) Chennai Sir, Sub: Inadequate parking facilities I wish to draw your attention towards the lack of an essential civic amenity which causes trouble not only to the vehicle users but also to the general public. The inadequate parking facilities in the commercial street area of Nungambakkam has caused a sea of chaos, confusion and disorder. Most of the vehicles are parked on roads blocking the passages to and from the parking spaces. The problem gets worse during the evening hours. People are stranded as they can’t park their vehicles at places earmarked for parking. Nor can they move out easily towards the road from the parking spaces. I would like to offer some practical suggestions: (i) Vehicles with even number should be allowed on even days, i.e., (Tuesday, Thursday F and Saturday) while those with odd ones be used on odd days (Monday, Wednesday, Friday). This will cut the number of vehicles by 50%. (ii) The parking lots should be controlled by the police so that entry/exit is not blocked. I hope my suggestions will be implemented for public benefit. Thank you, Yours faithfully Radhika To The Police Commissioner (Traffic) Chennai |
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| 18. |
For which project, did Andhra Pradesh win the Gold award in the category of "Outstanding Performance in Citizen-Centric Service Delivery" in the 20th National Conference on e-Governance held in January 2017?1. Aadhar-enabled PDS2. Loan Module3. State Pension Portal4. CORE |
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Answer» Correct Answer - Option 1 : Aadhar-enabled PDS The correct answer is Aadhar-enabled PDS.
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| 19. |
Ravi Mohan of 59 Adarsh Nagar, Secunderabad, a Class XII student of the Commerce stream sees this advertisement. Coaching in Commerce Stream Sure Shot Institute14-A Lancer Barracks, Secunderabad The best choice to ensure success in the exams Hurry! Join our classes! Limited seatsHe writes a letter to the institute seeking information about the subjects taught, the timings of the classes, class size and fees. Write his letter. |
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Answer» 16 July, 20XX Ravi Mohan 59, Adarsh Nagar Secunderabad The Director Sure Shot Institute 14 A, Lancer Barracks Secunderabad Sir, Sub: Coaching in Commerce stream Kindly refer to your advertisement in the Deccan Times dated 15 July. I would like more information and details about the courses the institute offers, facilities available, timings, fee structure and size of classes/groups. I need coaching in Accountancy, Advanced Mathematics, and Statistics. Please let me know if coaching is available in all these subjects and what is the schedule. Does your institute cater to individual difficulties or do you discuss and resolve general problems? Kindly enlighten me on all the above points. In case you have a detailed information booklet, do send it to my address given above. Yours faithfully Ravi Mohan To The Director Sure Shot Institute 14 A, Lancer Barracks Secunderabad |
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| 20. |
Not only ______ come late, you also haven’ t brought my book. A) are you B) you haven’ t C) you did D) have you |
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Answer» Correct option is D) have you |
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| 21. |
Arrange the following in decreasing order of their acidic character : |
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Answer» (iii) > (ii) > (i) |
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| 22. |
The maximum number of identical bond angle in `CH_(2)Cl_(2)` are `:-`A. 1B. 2C. 4D. 6 |
| Answer» Correct Answer - C | |
| 23. |
Match the following given columns`:-` A. a-ii,b-I,c-iii,d-v,e-ivB. a-ii,b-iii,c-v,d-iv,e-iC. a-I,b-iii,c-ii,d-v,e-ivD. a-I,b-iii,c-ii,d-iv,e-v |
| Answer» Correct Answer - C | |
| 24. |
Arrange the following in decreasing order of basic strenth. `underset(I)(CI^(-)) underset(II)(RCOO^(-)) underset(III)(OH^(-)) underset(IV)(RO^(-)) underset(V)(NH^(-))`A. `IgtIIltIIIgtIVltV`B. `VgtIVgtIIgtIIIgtI`C. `IgtIIgtIIIgtIVgtV`D. `VgtIVgtIIIgtIIgtI` |
| Answer» Correct Answer - D | |
| 25. |
Which group is capable of reducing the acidic strength of the parent acidA. `-OH`B. `-CH_(3)`C. `-OCH_(3)`D. All of these |
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Answer» Correct Answer - B `-CH_(3)` group, due to its electron releasing nature it decrease the acidic strenght of parent acid. |
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| 26. |
`R - C-= N +4Hoverset(Na//Alc.)to RCH_(2)NH_(2)` and `R-N vec= C + 4Hoverset(Na//Alc)to RNHCH_(3)` the above reactions confrim the following point .A. stability of cyanideB. stability of isocyanideC. structural difference of cyanide and isocyanideD. isomerism between cyanide and isocyanide |
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Answer» Correct Answer - C Alkyl cyanide on reudction gives primary amine while alkyl isocyanide on reduction gives secondary amine. This shows structural difference of cyanide and isocyanide . |
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| 27. |
Match List I with List II and select the correct answer using the codes given below : CodesA. I- C, II-D, III-B, IV-AB. I-C, II-D, Ill-A, IV-BC. I-A, II-B, III-D, IV-CD. I-C, II-B, III-C, IV-D |
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Answer» Correct Answer - A Deficieny of vitamin `B_(1)` causes beri-beri. Insulin is released form pancreas.Plam oil contains glycerides. L(+)- Ascorbic acid is the chemical name for vitamin C. |
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| 28. |
Which compound is used as a preservation in foods ?A. Salt of sorbic acidB. Citric acidC. Ascorbic acidD. Saccharin |
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Answer» Correct Answer - A Salt of sorbic acid is used in cheese, baked food, meat etc. as preservation. |
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| 29. |
Insectivorous plants usually grow in soils which are deficient inA. Nitroen/nitrateB. WaterC. Organic matterD. Ca/Mg |
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Answer» Correct Answer - A Insectivorous plants usually grow in soils which are deficient in Nitrogen/Nitrate. |
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| 30. |
verticllaster type of inflorescence occurs inA. CottonB. DaturaC. LeucasD. Ocimum |
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Answer» Correct Answer - D Verticillaster type of inflorescence occurs in Ocimum. |
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| 31. |
A cubic solid is made of two elements P and Q. Atoms of Q are at the corners of the cube and P at the body-centre. What is the formula of the compound? What are the coordination numbers of P and Q? |
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Answer» It is given that the atoms of Q are present at the corners of the cube. Therefore, number of atoms of Q in one unit cell =8x1/8=1 It is also given that the atoms of P are present at the body-centre. Therefore, number of atoms of P in one unit cell = 1 This means that the ratio of the number of P atoms to the number of Q atoms, P:Q = 1:1 Hence, the formula of the compound is PQ. The coordination number of both P and Q is 8. |
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| 32. |
What makes a glass different from a solid such as quartz? Under what conditions could quartz be converted into glass? |
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Answer» The arrangement of the constituent particles makes glass different from quartz. In glass, the constituent particles have short range order, but in quartz, the constituent particles have both long range and short range orders. Quartz can be converted into glass by heating and then cooling it rapidly. |
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| 33. |
What type of substances would make better permanent magnets, ferromagnetic or ferrimagnetic ? Why ? |
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Answer» Ferromagnetic substances make better permanent magnets. This is because the metal ions of a ferromagnetic substance are grouped into small regions called domains. Each domain acts as tiny magnet and get oriented in the direction of magnetic field in which it is placed. This persists even in the absence of magnetic field. |
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| 34. |
In compound atoms of element Y forms ccp lattice and those of element X occupy 2/3rd of tetrahedral voids. What is the formula of the compound ? |
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Answer» No. of Y atoms per unit cell in ccp lattice = 4 No. of tetrahedral voids = 2 × 4 = 8 No. of tetrahedral voids occupied by X = 2/3 × 8 = 16/3 Therefore, Formula of the compound = X16/3Y4 = X16Y12 = X4 Y3 |
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| 35. |
Sodium borohydride upon treatment with idoine produces a Lewis acid (X), which on heating with ammonia produces a cyclic compound (Y) and a colorless gas (Z). X, \( Y \) and \( Z \) are : (A) \( X = BH _{3} ; Y = BH _{3} \). \( NH _{3} ; Z = N _{2} \) (B) \( X = B _{2} H _{6} ; Y = B _{3} N _{3} H _{6} \). \( Z = H _{2} \) (C) \( X = B _{2} H _{6} ; Y = B _{6} H _{6} \). \( Z = H _{2} \) (D) \( X = B _{2} H _{6} ; Y = B _{3} N _{3} H _{6} ; Z = N _{2} \) |
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Answer» Correct option is (B) X = B2H6 ; Y = B3N3H6 X=B2H6;Y=B3N3H6. Z = H2 2NaBH4 + I2 → \(\underset{X}{B_2H_6}+2NaI+H_2\) 3B2H6 + 6 NH3 → \(\underset{(Y)}{2B_3N_3H_6}+ \underset{(Ƶ)}{12H_2}\) X is B2H6 (Lewis acid) Y = B3N3H6(Cyclic product) (inorganic benzene) Ƶ =H2 Colourless gas. |
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| 36. |
How many isomeric ethers are represented by the molecular formula C4H10O .(a) 3 (b) 2(c) 4(d) 5 |
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Answer» 3 isomeric ethers are represented by the molecular formula C4H10O . |
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| 37. |
Determine the degree of association (polymerzation) for the reaction in aqueous solution, if observed (mean) molar mass of HCHO and `C_(6)H_(12)O_(6)` is `150 :A. `0.50`B. `0.33`C. `0.80`D. `0.96` |
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Answer» Correct Answer - D Determine the degree of association …………. `{:(,6HCOhArrC_(6),H_(12)O_(6)),(t=0,1,0),(t=equi^(m),(1-alpha),(alpha)/(6)):}` Mass conservation `1xx30 = {(1-alpha)+(alpha)/(6)}xx150` `alpha = 0.96` |
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| 38. |
Which of the following is not an intensive property ?A. Heat capacityB. TemperatureC. Specific volumeD. Molar mass |
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Answer» Correct Answer - A Which of the following is not …….. Mass dependent properties are extensive. |
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| 39. |
In the following four elements, the ionisation potential of which one is the highest ?(a) Oxygen (b) Argon (c) Barium (d) Cesium |
| Answer» (b) Ionization potential of inert gases is highest in periodic table due to stable electronic configuration | |
| 40. |
Gradual addition of electronic shells in the noble gases causes a decrease in their(a) ionisation energy (b) atomic radius (c) boiling point (d) density |
| Answer» (a) Ionisation energy decreases as we move away from nucleus due to less electrostatic attraction between electrons and nucleus | |
| 41. |
Why is the second electron gain enthalpy negative (i.e. energy is absorbed)? |
| Answer» Second is to be added to negatively charged ions which will repel the incoming electron. The energy required to overcome repulsion is more than energy released on adding electron. | |
| 42. |
Energy of electron in first excited state in Hydrogen atom is -3.4eV. Find KE and PE of electron in the ground state. |
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Answer» Energy of electron in n = 2 is -3.4eV `therefore " energy in ground state " = -13.6V " " E_(n) = underset(n^(2))overset(x)"" rArr -3.4eV = underset(z^(2))overset(x)""rArr` kE = -TE = +13.6eV energy in ground state X = -13.6eV. PE = 2TE =`-2 xx 13.6eV = -27.2eV` |
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| 43. |
The boy has more balloons than the girl. True or false?A. TrueB. False |
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Answer» The statement is False. |
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| 44. |
2. In an element 'X', 5th electron of 3rd shell is its last electron. In another element 'Y',7th electron of 3rd shell is its last electron. Then identify 'X' and 'Y'.3. An element has atomic number 17 and mass number 37. There are 17 electrons outside the nucleus. Find the number of neutrons in it.4. What is the atomic number of the element X which has 2 shells, K and L having 2 and 6 electrons respectively?Identify the element X.5. An old man and a scientist were talking about a deserted house. The old man was sure that it was haunted by ghosts, but the scientist discarded the view saying no one had ever seen a ghost. The old man was annoyed and challenged the scientist about existence of atoms, sub - atomic particles which also could not be seen. Read the given passage and answer the following questions (2m) (a) Name the three sub - atomic particles and their discoverers. (b) Whose viewpoint do you support and why? |
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Answer» 2. X is phosphorus and Y is Chlorine. 3. Given - Atomic number of element = 17 Mass number of element = 37 Number of electrons = 17 As we know, number of protons is equal to number of electrons. so, number of protons = 17 now, Mass number = number of protons + number of neutrons 37 = 17 + number of neutrons number of neutrons = 37 - 17 number of neutrons = 20 So, the number of neutrons in the nucleus = 20. 4. K = 2, L = 6 Atomic number = Number of protons = Number of electrons in neutral atom Atomic number = 2 + 6 = 8 5. (a)(i) Electron - J.J Thomson (ii) Proton - E. Goldstein (iii) Neutron - Chadwick (b) I support scientist's viewpoint because it is based on logic and proven facts. Old man's views are figments of imagination without any scientific truth and are superstitions. |
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| 45. |
What is friction |
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Answer» force which opposes the relative motion
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| 46. |
The number of possible outcomes by tossing three coins is –(A) 3 (B) 10 (C) 6 (D) 8 |
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Answer» Correct answer is (D) 8 |
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| 47. |
Another name for force of gravity acting on an object isA. frictionB. air resistanceC. weightD. mass |
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Answer» The Correct option is C. weight |
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| 48. |
Force applied on a body and its acceleration areA. inversely relatedB. directly relatedC. not related at allD. inversely proportional |
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Answer» B. directly related |
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| 49. |
Base unit among following isA. NewtonB. JouleC. CandelaD. Watt |
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Answer» The Correct option is C. Candela |
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| 50. |
Force provided by breaking system of train if it is decelerating at rate of -3 m s-2 and having mass 10,000 kg isA. -30,000 NB. -40,000 NC. -50,000 ND. 30,000 N |
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Answer» A. -30,000 N |
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