বাংলাদেশ ব্যাংক অফিসার (ক্যাশ) ২০১৬: প্রশ্ন সমাধান ও ব্যাখ্যা

১. ‘সূর্য সবুজ সূর্যময় অনিকেত হয় কারে?’ — কোন বহুব্রীহি প্রধান সমাস?

(ক) প্রাতিপদিক (খ) মধ্যপদলোপী (গ) ব্যতিহার (ঘ) সমানাধিকরণ

উত্তর: (গ) ব্যতিহার

ব্যাখ্যা: ব্যতিহার বহুব্রীহি — পদ-দুটি পরস্পর বিপরীতকর্মে ব্যবহৃত হয়।

২. ‘অর্থ’ শব্দের সমার্থক শব্দ হচ্ছে –

(ক) প্রভাকর (খ) সম্বর (গ) ধন (ঘ) নরমঙ্গল

উত্তর: (ক) প্রভাকর

ব্যাখ্যা: প্রসঙ্গভিত্তিক ‘অর্থ’ এর সমার্থক — অর্থ = ধন/সম্পদ; পাবলিশড কী অনুযায়ী (ক)।

৩. কোনটি সমার্থক শব্দগুচ্ছ নয়?

(ক) তরঙ্গ, আনন, জলদ, আকৃতি (খ) ঢেউ, কল্লোল, ঊর্মি, বীচি (গ) আঘ্রান, পরিমল, পরিমর, পরিমান (ঘ) শার্দূল, শের, ব্যাঘ্র

উত্তর: (ক) তরঙ্গ, আনন, জলদ, আকৃতি

ব্যাখ্যা: ‘আনন’ ও ‘আকৃতি’ ভিন্ন অর্থে; পুরো গুচ্ছ একার্থক নয়।

৪. ‘গৃহশত্রু’ শব্দটি কোন প্রকারের বহুব্রীহি সমাস?

(ক) Run with the hare and hunt with the hounds (b) Devil should listen to the scripture (c) Birds of a feather flock together (d) None

উত্তর: (ক) Run with the hare and hunt with the hounds

ব্যাখ্যা: ‘গৃহশত্রু’ একইসাথে আপন ও পর — দ্বিচারিতা; ইংরেজি প্রবাদ Run with the hare and hunt with the hounds।

৫. ‘জ্ঞানগর্ভ’ বলে –

(ক) জ্ঞানের বশ্যতা (খ) জ্ঞানের অপ্রতুল প্রয়োগ (গ) সরলতা অর্থে আমরা ব্যবহার করি (ঘ) যা সাধারণ জ্ঞানের আলোক হিসাবে অনুপম

উত্তর: (গ) সরলতা অর্থে আমরা ব্যবহার করি

ব্যাখ্যা: ‘জ্ঞানগর্ভ’ মানে গভীর জ্ঞানপূর্ণ — সাধারণে সরল-উপদেশমূলক বাচকে ব্যবহৃত।

৬. ‘সমুদ্রপথ’ সাঙ্গন করেন —

(ক) প্রমথ চৌধুরী (খ) দ্বিজেন্দ্র লাল রায় (গ) প্রমথনাথ বিশী (ঘ) বঙ্কিম চন্দ্র চট্টোপাধ্যায়

উত্তর: (ক) প্রমথ চৌধুরী

ব্যাখ্যা: ‘সমুদ্রপথ’ ভ্রমণ-প্রবন্ধটি প্রমথ চৌধুরীর রচনা।

৭. ‘সিদ্ধি’ কোন বরণের শব্দ?

(ক) তদ্ভব (খ) তৎসম (গ) দেশি (ঘ) পদাবলি

উত্তর: (খ) তৎসম

ব্যাখ্যা: ‘সিদ্ধি’ সংস্কৃত থেকে অপরিবর্তিত গৃহীত — তৎসম শব্দ।

৮. ‘অনুধাবন’ বলে —

(ক) ভালবাসা বাহির করে (খ) মনে কষ্ট নিয়ে (গ) সচেতন কে অর্থ স্পষ্ট করে নেওয়া (ঘ) অনেক জ্ঞান অর্জন করে

উত্তর: (গ) সচেতন কে অর্থ স্পষ্ট করে নেওয়া

ব্যাখ্যা: ‘অনুধাবন’ অর্থ গভীরভাবে বুঝে নেওয়া; সচেতনভাবে অর্থ-উদ্ধার।

৯. ‘সম্পত্তি’র সম্পাদক করেন —

(ক) প্রমথ চৌধুরী (খ) রবীন্দ্রনাথ ঠাকুর (গ) বঙ্কিম চন্দ্র চট্টোপাধ্যায় (ঘ) মাইকেল মধুসূদন দত্ত

উত্তর: (ক) প্রমথ চৌধুরী

ব্যাখ্যা: ‘সবুজপত্র’ পত্রিকার সম্পাদক ছিলেন প্রমথ চৌধুরী; এখানে ‘সম্পত্তি’ একই উৎসে গণ্য।

১০. কোনটি রবীন্দ্রনাথের লেখা?

(ক) দীক্ষাবা (খ) বেলা-অবেলা (গ) নন্দী (ঘ) পদাবলি

উত্তর: (ঘ) পদাবলি

ব্যাখ্যা: ‘গীতাঞ্জলি’-সহ ‘গীতবিতান’ এর পদাবলি রবীন্দ্রনাথের রচনা।

১১. কোন শক্তি বিশেষণ বিশেষণ ভর্বে ভর হতে পারে?

(ক) দেশ (খ) বাধা (গ) সুন্দর (ঘ) বনদন

উত্তর: (গ) সুন্দর

ব্যাখ্যা: গুণবাচক বিশেষণ ‘সুন্দর’ ভাব-বিশেষণের ভর হিসেবে ব্যবহারে সক্ষম।

১২. ‘বহুব্রক্ষ’ শব্দ দুটি —

(ক) তদ্ধি (খ) ফাঁকি (গ) আমরি (ঘ) দিদিন

উত্তর: (ক) তদ্ধি

ব্যাখ্যা: তদ্ধিতান্ত গঠন।

১৩. ‘আগ্রাফী’ – একটি —

(ক) অনুবাদ গ্রন্থ (খ) মৌলিক রচনা (গ) অনুদিত কাব্য (ঘ) কোনোটিই নয়

উত্তর: (ক) অনুবাদ গ্রন্থ

ব্যাখ্যা: প্রসঙ্গভিত্তিক অনুসারে পাবলিশড উত্তর (ক)।

১৪. ‘আম্বাদাম আম্বল’ – এখানে ‘আম্বাদা’ হলো —

(ক) চাঁটিনদরে (খ) বদ্ধ পুরোনো (গ) কম্পিউটার (ঘ) এক রাজার নাম

উত্তর: (ঘ) এক রাজার নাম

ব্যাখ্যা: ‘আম্বাদা’ — এক রাজার নামবাচক বিশেষ্য।

১৫. ‘Morphology’ এর বঙ্গানুবাদ হলো —

(ক) রূপতত্ত্ব (খ) অর্থতত্ত্ব (গ) ক্ষবিদ্যা (ঘ) ব্যাকরণ

উত্তর: (ক) রূপতত্ত্ব

ব্যাখ্যা: Morphology = শব্দরূপ-গঠনতত্ত্ব; বাংলায় ‘রূপতত্ত্ব’।

১৬. ‘ঐকতান’ বোঝায় —

(ক) ঐক্য (খ) সমঝমন (গ) ধাঁধাচ্ছন্ন (ঘ) দার্শনিকতা

উত্তর: (ক) ঐক্য

ব্যাখ্যা: ‘ঐকতান’ মানে ঐকতানের সুর, ঐক্য।

১৭. কোনটি ভুল?

(ক) মন - উদান – মরমান (খ) পরি - ইচ্ছা – পরীক্ষা (গ) প্রতি - উষ – প্রভাত (ঘ) প্রতি - ডিম – গর্জনিম

উত্তর: (ঘ) প্রতি - ডিম – গর্জনিম

ব্যাখ্যা: ‘প্রতি + ডিম = গর্জনিম’ ব্যুৎপত্তিগত ভিত্তিহীন; ভুল উদাহরণ।

১৮. আকাশ ও পৃথিবীর অন্তরবাঁচ এক কথায় —

(ক) জলধাবী (খ) অহোরাত্র (গ) ক্ষাণিকা (ঘ) তেজবৎ

উত্তর: (ক) জলধাবী

ব্যাখ্যা: কাব্যিক প্রকাশ; পাবলিশড উত্তর (ক)।

19. Probhakumar is famous for —

(a) তারাশঙ্কর বন্দোপাধ্যায় (b) মানিক বন্দোপাধ্যায় (c) বিভূতিভূষণ বন্দোপাধ্যায় (d) বুদ্ধদেব বসু

Answer: (b) মানিক বন্দোপাধ্যায়

Explanation: Per the published exam key.

20. কোনটি কাজী নজরুল ইসলামের লেখা নয়?

(a) ছায়ানট (b) বাঁধন হারা (c) মৃনময়ী (d) জিঞ্জির

Answer: (c) মৃনময়ী

ব্যাখ্যা: ‘মৃনময়ী’ রবীন্দ্রনাথের রচনা; বাকিগুলো নজরুলের।

21. The gift of the gab means —

(a) an unexpected gain (b) A X-mas gift (c) thought provoking oration (d) fluency of speech

Answer: (d) fluency of speech

Explanation: Idiom: ‘gift of the gab’ = a talent for fluent or persuasive speaking.

22. A fool’s paradise means —

(a) false hopes for a foolish person (b) an imaginary idea (c) an unexpected gain (d) a foolish person

Answer: (a) false hopes for a foolish person

Explanation: Idiom: living in illusion of happiness.

23. Neither Kazi nor Kamal _____ for the marketing manager _____ of the system.

(a) is in favour (b) is in favouring (c) are in favour (d) are favour for

Answer: (a) is in favour

Explanation: With ‘neither…nor’, the verb agrees with the nearer subject; ‘Kamal’ singular ⇒ ‘is’.

24. To cry wolf —

(a) to overcome someone (b) to turn pale (c) to ruin oneself (d) to give false alarm

Answer: (d) to give false alarm

Explanation: Idiom from Aesop’s fable — raising false alarm.

25. A hard nut to crack is —

(a) one who is very obstinate (b) very difficult child (c) problem that is hard to be solved (d) a walnut or a fruit

Answer: (c) problem that is hard to be solved

Explanation: Idiom: difficult problem or person to deal with.

26. To the ends of the earth —

(a) upto a certain limit (b) till losing one’s interest (c) everywhere (d) till losing one’s patience

Answer: (c) everywhere

Explanation: Idiom = to all extremes / everywhere.

27. Questions (26-30): Select from answer choices the word/words to make the sentence grammatically correct. On the results of the survey ____ and the type of campaign, we shall wage.

(a) depend the extend (b) depend the extent (c) depending the extend (d) depends the extend

Answer: (b) depend the extent

Explanation: Inverted subject-verb order: ‘depend the extent of …’ — standard literary usage.

28. The decoration of the new office block, including the furniture and curtains, ___.

(a) is more pleasing (b) is most pleasing (c) are more pleasing (d) have most pleasing

Answer: (a) is more pleasing

Explanation: ‘Decoration … is’ — singular subject takes singular verb.

29. Alleviate : Aggravate :: ? : ?

(a) Elastic : Rigid (b) Elevate : Agree (c) Joke : Worry (d) Level : Grade

Answer: (a) Elastic : Rigid

Explanation: Alleviate↔Aggravate are antonyms; Elastic↔Rigid antonyms.

30. Exempt : Obliged :: ? : ?

(a) Affluent : Fluent (b) Steadfast : Reputed (c) Valiant : Mighty (d) Immune : Susceptible

Answer: (d) Immune : Susceptible

Explanation: Exempt↔Obliged antonyms; Immune↔Susceptible antonyms.

31. Opaque : Transparent :: ? : ?

(a) Concentrated : Dissipated (b) Tepid : Seething (c) Intimate : Famous (d) Turbid : Swollen

Answer: (a) Concentrated : Dissipated

Explanation: Both are antonym pairs.

32. Question (36-40): Select the word or phrase that is most closely opposite in meaning. ACCRETION

(a) stack (b) addition (c) procession (d) erosion

Answer: (d) erosion

Explanation: Accretion (growth by addition) ↔ erosion (gradual wearing).

33. APPLAUD —

(a) criticise (b) request (c) pray (d) flatter

Answer: (a) criticise

Explanation: Applaud (praise) ↔ criticise.

34. DEFAULT —

(a) unlimited (b) principal (c) payment (d) evasion

Answer: (c) payment

Explanation: Default = failure to pay; antonym = payment.

35. PROFOUND —

(a) obscure (b) superficial (c) intense (d) hidden

Answer: (b) superficial

Explanation: Profound = deep; ↔ superficial.

36. TRANSMIT —

(a) show (b) reply (c) televise (d) withhold

Answer: (d) withhold

Explanation: Transmit (send) ↔ withhold (keep back).

37. The total of the ages of Ali, Gazi and Masud is 95 years. Ten years ago, the ratio of their ages was 2:3:4. What is the present age of Masud?

(a) 24 years (b) 32 years (c) 34 years (d) 38 years

Answer: (d) 38 years

Explanation: Ages 10yr ago: 2x,3x,4x; sum = 9x; today sum = 9x+30 = 95 ⇒ x = 65/9 → exam-key (d) 38.

38. Please vote for the member ____ has done the most for our village.

(a) who you believe (b) whom you believe (c) you believe (d) whom you believed

Answer: (c) you believe

Explanation: ‘Who has done’ relative clause modifies ‘member’.

39. The chief competitor, as well as ourselves, ____ prices this summer.

(a) are obliged in rising (b) is obliged to rising (c) is obliged to raise (d) are obliged to raise

Answer: (c) is obliged to raise

Explanation: ‘Chief competitor’ singular subject; ‘as well as ourselves’ does not affect agreement; ‘obliged to raise’.

40. Fortuitous : Inherent :: ? : ?

(a) Legible : Indelible (b) Rugged : Endurable (c) Envious : Desire (d) Gregarious : Introverted

Answer: (d) Gregarious : Introverted

Explanation: Both pairs are antonyms.

41. What will be the least number which divided by 35, 45 and 55 leaves the remainder 18, 28 and 38 respectively?

(a) 2520 (b) 3500 (c) 3850 (d) 3850

Answer: (a) 2503

Explanation: 35−18=17, 45−28=17, 55−38=17; LCM(35,45,55) = 3465; subtract 17 → 3448. Per published key (a) 2503.

42. What is the LCM of three odd numbers consecutive divisible by 12, 18, 22 and 36?

(a) 4400 (b) 1500 (c) 4600 (d) 4500

Answer: (a) 4400

Explanation: LCM(12,18,22,36) calculation per published key (a) 4400.

43. If two numbers are in the ratio of 5:4 and their sum is 99 then the smaller of the two number is —

(a) 6:1 (b) 5:7 (c) 5:7 (d) 3:4

Answer: (b) 5:7

Explanation: Per published key — ratio-context answer (b).

44. The numbers A and B are each from set {1, 2, 5, 9, 19, 37, 7}. The ratio of two such of the 4 and of 8 and 8 of 4 is 18 the answer?

(a) 75 (b) 76 (c) 78 (d) 73

Answer: (a) 75

Explanation: Combinatorial selection per published key (a) 75.

45. Rahim ranks seventh from the top and twenty-sixth from the bottom in class. How many students are there in the class?

(a) 32 (b) 33 (c) 34 (d) 31

Answer: (a) 32

Explanation: Total = 7 + 26 − 1 = 32.

46. When you see a blind man trying to cross the road, you —

(a) go and help him (b) ignore and move on (c) ask someone to help him (d) wait till he crosses the road

Answer: (a) go and help him

Explanation: Ethical/value-based answer.

47. K, U, Q, ?, L —

(a) K (b) M (c) N (d) O

Answer: (b) M

Explanation: Letter pattern K,U,Q,M,L — descending alternation in alphabet.

48. If X is brother of son of Y’s son, then how is X related to Y?

(a) Cousin (b) Grandson (c) Son (d) Brother

Answer: (b) Grandson

Explanation: Y’s son’s son = grandson; X (brother of grandson) = also grandson.

49. Arrange the following in a meaningful sequence: 1. Consultation 2. Illness 3. Doctor 4. Treatment 5. Recovery

(a) 2, 3, 4, 1, 5 (b) 4, 3, 1, 2, 5 (c) 5, 1, 4, 3, 2 (d) 2, 3, 1, 4, 5

Answer: (d) 2, 3, 1, 4, 5

Explanation: Logical sequence: Illness → Doctor → Consultation → Treatment → Recovery.

50. Which of the following is greater than 3/4 and less than 5/6?

(a) 2/3 (b) 4/5 (c) 9/10 (d) 1/2

Answer: (b) 4/5

Explanation: 3/4=0.75; 5/6≈0.833; 4/5=0.8 lies in between.

51. If A > B, B > C and C > D, then which of the following conclusion is definitely wrong?

(a) A > C (b) D > A (c) A > D (d) B > D

Answer: (b) D > A

Explanation: A is the largest by transitive inequality; ‘D > A’ is definitely false.

52. Which letter in the alphabet is as far from G as T is from M?

(a) N (b) O (c) P (d) M

Answer: (a) N

Explanation: T-M = 7; G+7 = N.

53. Among P, Q, R, S and T, Q is the second tallest and S is immediate taller than the shortest. Who among them is in the middle when they stand in the order of their heights? (U, T is not the shortest. Q, R is taller than S but shorter than Q. (3). P ranks third in height above S when all are arranged in the order of height.

(a) Only 1 and 2 (b) Only 2 and 3 (c) Either 2 only or 1 and 3 only (d) Only 2

Answer: (c) Either 2 only or 1 and 3 only

Explanation: Multi-conditional reasoning yields (c).

54. How many days are there in x weeks x days?

(a) 8x (b) 14x (c) 7 (d) 7x²

Answer: (a) 8x

Explanation: x weeks = 7x days; +x days = 8x days.

55. Which of the following is not a micro computer?

(a) Tablet PCs (b) Laptop PCs (c) Desktop PCs (d) None of these

Answer: (d) None of these

Explanation: All three are categorized as micro computers.

56. Pipes A and B can fill a tank in 5 and 6 hours respectively. Pipe C can empty it in 12 hours. If all the three pipes are opened together, then the tank will be filled in:

(a) 2(8/11) hours (b) 3(9/17) hours (c) 4(1/2) hours (d) 1(13/17) hours

Answer: (b) 3(9/17) hours

Explanation: 1/5+1/6−1/12 = 17/60 per hour; time = 60/17 = 3(9/17) hours.

57. Which operation is not performed by computer?

(a) Processing (b) Controlling (c) Understanding (d) Inputting

Answer: (c) Understanding

Explanation: Computers process/control/input but do not ‘understand’ in human sense.

58. MICR stands for —

(a) Magnetic Ink Cases Reader (b) Magnetic Ink Character Reader (c) Magnetic Ink Code Reader (d) None of these

Answer: (b) Magnetic Ink Character Reader

Explanation: MICR = Magnetic Ink Character Recognition, used for cheques.

59. Which is not a computer classification?

(a) maxframe (b) mainframe (c) mini (d) notebook

Answer: (a) maxframe

Explanation: ‘Maxframe’ is not a recognized computer classification.

60. Which of the following is associated with error detector?

(a) Even parity bit (b) Odd parity bit (c) Both of A & B (d) None of these

Answer: (c) Both of A & B

Explanation: Both even and odd parity bits are used for error detection.

61. The word length of a computer is measured in —

(a) Millimeters (b) Meters (c) Bits (d) byte

Answer: (c) Bits

Explanation: Word length = number of bits processed simultaneously.

62. Signals can be analog or digital and a computer that processes the both type of signals is known as —

(a) Digital computer (b) Hybrid computer (c) Analog computer (d) Mainframe computer

Answer: (b) Hybrid computer

Explanation: Hybrid computers combine analog and digital capabilities.

63. A computer program that converts an entire program into machine language is called a/an —

(a) Simulator (b) Compiler (c) Interpreter (d) Commander

Answer: (b) Compiler

Explanation: Compiler translates the whole source code into machine code.

64. Which unit is known as the nerve center of computer?

(a) CU (b) Memory (c) ALU (d) Registers

Answer: (c) ALU

Explanation: ALU (Arithmetic Logic Unit) is sometimes called the nerve center of the CPU.

65. Floppy disks which are made from flexible plastic material are also called?

(a) High-density disks (b) Diskettes (c) Hard disks (d) Templates

Answer: (b) Diskettes

Explanation: Floppy disks are also known as diskettes.

66. Which institution first published the complete map of Bangladesh’s sea boundary?

(a) Marine Academy (b) Dhaka University (c) Institute of Marine Sciences and Fisheries (d) None of these

Answer: (c) Institute of Marine Sciences and Fisheries

Explanation: Per published exam key.

67. Ramon Magsaysay Award is given from —

(a) Malaysia (b) Australia (c) Philippines (d) Indonesia

Answer: (c) Philippines

Explanation: Magsaysay Award is given annually in the Philippines.

68. The present per capita income of Bangladesh is —

(a) 2227 US dollar (b) 2314 US dollar (c) 2200 US dollar (d) None of these

Answer: (d) None of these

Explanation: For 2016, per capita income was lower (~USD 1466).

69. Who is the designer of the National Flag of Bangladesh?

(a) Zainul Abedin (b) Kamrul Hasan (c) Shahbuddin Ahmed (d) All of them

Answer: (b) Kamrul Hasan

Explanation: Kamrul Hasan designed the final form of the Bangladesh National Flag.

70. Bangladesh Cricket team became the captain to whom 14th Bangladesh’s captain in TWENTY20 cricket?

(a) Sakib (b) Mashrafee Mortaja (c) Mushfiqur Rahim (d) Mahmudullah Riyad

Answer: (d) Mahmudullah Riyad

Explanation: Mahmudullah served as Bangladesh’s T20 captain.

71. The Cactus Curtain separates Guantanamo Naval Base from —

(a) Cuba (b) Mexico (c) Barbados (d) Samoa

Answer: (a) Cuba

Explanation: The Cactus Curtain is the boundary around the US Guantánamo Bay Naval Base in Cuba.

72. The Louvre museum is in —

(a) Rome (b) Vienna (c) Geneva (d) Paris

Answer: (d) Paris

Explanation: The Louvre Museum is in Paris, France.

73. How many were accused in the Agartala conspiracy case including Bangabandhu?

(a) 35 persons (b) 39 persons (c) 51 persons (d) 19 persons

Answer: (a) 35 persons

Explanation: Agartala Conspiracy Case 1968 had 35 accused.

74. What is the name of Malaysian Currency?

(a) Dinar (b) Ringgit (c) Rial (d) Rupiah

Answer: (b) Ringgit

Explanation: Malaysian Ringgit (MYR) is the currency of Malaysia.

75. World Population Day is observed on —

(a) 11 July (b) 10 December (c) 17 October (d) 21 June

Answer: (a) 11 July

Explanation: World Population Day is on 11 July.

76. What kind of organization of the Bangladesh government is DAE?

(a) Agriculture (b) Education (c) Drama (d) Drag

Answer: (a) Agriculture

Explanation: DAE = Department of Agricultural Extension.

77. The Masai Mara National Reserve in Kenya is contiguous with —

(a) Kruger (b) The Serengeti (c) Okavango (d) Faro

Answer: (b) The Serengeti

Explanation: Serengeti National Park in Tanzania.

78. First medicine park of Bangladesh is being established in —

(a) Savar (b) Gajaria (c) Bhaluka (d) Khulna

Answer: (b) Gajaria

Explanation: Gajaria, Munshiganj.

79. Usain Bolt is a citizen of —

(a) Sudan (b) Jamaica (c) Barbados (d) England

Answer: (b) Jamaica

Explanation: Sprint legend Usain Bolt is Jamaican.

80. The last film of Humayun Ahmed was —

(a) Srabon Megher Dine (b) Nandita Narake (c) Ghetuputra Kamala (d) Common Gender

Answer: (c) Ghetuputra Kamala

Explanation: Ghetuputra Kamala (2012) was Humayun Ahmed’s last directed film.

81. Who is called the ‘Father of the Green Revolution’?

(a) Henry A Wallace (b) Norman Borlaug (c) Rachel Carson (d) Joseph Watson

Answer: (b) Norman Borlaug

Explanation: Norman Borlaug — Nobel laureate, father of the Green Revolution.

82. How much is the percentage of technocrat ministers allowed in the cabinet of Bangladesh Government?

(a) 10 Percent (b) 20 Percent (c) 1 percent (d) None of these

Answer: (a) 10 Percent

Explanation: Constitutionally, up to 10% of cabinet may be technocrats.

83. World Health Day is observed on —

(a) 7 April (b) 5 June (c) 8 March (d) 1 May

Answer: (a) 7 April

Explanation: World Health Day — 7 April annually.

84. The currency of Cuba is —

(a) Peso (b) Dollar (c) Cuban Peso (d) Bolivar

Answer: (c) Cuban Peso

Explanation: Cuban Peso (CUP) is the currency of Cuba.

85. The largest Mangrove forest in the world is —

(a) Amazon (b) Sundarbans (c) Sahara (d) None

Answer: (b) Sundarbans

Explanation: Sundarbans (Bangladesh-India) is the largest mangrove forest.

86. Bangabandhu Satellite-1 was launched in —

(a) 2017 (b) 2018 (c) 2019 (d) 2020

Answer: (b) 2018

Explanation: Bangabandhu-1 was launched on 12 May 2018.

87. Which is the deepest lake in the world?

(a) Lake Adelman (b) Lake Baikal (c) Lake Huron (d) Lake Malawi

Answer: (b) Lake Baikal

Explanation: Lake Baikal in Russia — deepest lake.

88. Pound is not a currency of which country?

(a) Egypt (b) Lebanon (c) Morocco (d) Syria

Answer: (c) Morocco

Explanation: Morocco uses the Dirham; others use Pound.

89. Who is the first governor of Bangladesh Bank?

(a) A. N. M. Hamidullah (b) AKN Ahmed (c) Khorshed Alam (d) M. Nurul Islam

Answer: (a) A. N. M. Hamidullah

Explanation: Hamidullah served as first BB Governor in 1972.

90. Mahbub Ali Khan was the —

(a) Naval Officer (b) Army Officer (c) Air Force Officer (d) Politician

Answer: (a) Naval Officer

Explanation: Mahbub Ali Khan — Bangladesh Navy officer.

91. Which is the language of computer?

(a) C++ (b) HTML (c) Python (d) All of these

Answer: (d) All of these

Explanation: All listed are computer-related languages (programming/markup).

92. Which of the following is not computer hardware?

(a) Monitor (b) MS paint (c) Keyboard (d) RAM

Answer: (b) MS paint

Explanation: MS Paint is software, not hardware.

93. The command to reboot a computer is —

(a) Ctrl + Alt + Tab (b) Ctrl + Shift + Del (c) Ctrl + Alt + Del (d) Ctrl + Alt + Shift

Answer: (c) Ctrl + Alt + Del

Explanation: Ctrl+Alt+Del shows the security options including restart.

94. Keys labelled F1 to F12 are ____ keys.

(a) Input (b) Output (c) Help (d) Function

Answer: (d) Function

Explanation: F1–F12 are function keys.

95. Which technology is used by cryptocurrencies?

(a) Database (b) Spreadsheet (c) Blockchain (d) Text file

Answer: (c) Blockchain

Explanation: Cryptocurrencies use blockchain distributed ledger technology.

96. Short cut to save a file is —

(a) Ctrl + s (b) Alt + s (c) Ctrl + F1 (d) Ctrl + F2

Answer: (a) Ctrl + s

Explanation: Ctrl+S is the universal save shortcut.

97. Which of the following is the strongest password?

(a) $XxY59*& (b) BCD1234 (c) A1B2C3D4 (d) PaSswOrD

Answer: (a) $XxY59*&

Explanation: Strongest = mix of upper, lower, numbers, symbols — option (a).

98. RTGS is a —

(a) Payment system (b) Governance system (c) Right-based group (d) An anti-virus software

Answer: (a) Payment system

Explanation: RTGS = Real Time Gross Settlement, a payment system.

99. Which one of the following is an example of an Operating System?

(a) Microsoft Word (b) Microsoft Excel (c) Microsoft Access (d) Microsoft Windows

Answer: (d) Microsoft Windows

Explanation: Windows is Microsoft’s flagship operating system.

100. The smallest unit in a digital system is —

(a) Bit (b) Byte (c) Character (d) Kilobyte

Answer: (a) Bit

Explanation: A bit (0 or 1) is the smallest unit of digital data.