পরীক্ষা আর্কাইভ

ব্যাংক মডেল টেস্ট [সাপ্তাহিক]

পরীক্ষাব্যাংক মডেল টেস্ট [সাপ্তাহিক]তারিখতারিখ অনির্ধারিতসময়50 minutes
মোট প্রশ্ন৬৫
সিলেবাস
Full Model Test – 03
ঘনত্ব
উত্তর
উত্তরিতবর্তমানপুনরায় দেখুনঅসম্পূর্ণ

ব্যাংক মডেল টেস্ট [সাপ্তাহিক]

ব্যাংক মডেল টেস্ট [সাপ্তাহিক] · তারিখ অনির্ধারিত · ৬৫ প্রশ্ন

.
'কোরবানি' শব্দটি কোন ভাষা থেকে আগত শব্দ?
  1. পর্তুগিজ
  2. ফরাসি
  3. ফারসি
  4. তুর্কি
  5. আরবি
ব্যাখ্যা


উৎসঃ বাংলা ভাষার ব্যাকরণ - নবম-দশম শ্রেণি।

.
সারমেয় শব্দের অর্থ কি?
  1. হরিণ
  2. খরগোশ
  3. কুকুর
  4. সারস
  5. বিড়াল
ব্যাখ্যা

সারমেয় (বিশেষ্য) = কুকুর।
স্ত্রীলিঙ্গঃ সারমেয়ী (বিশেষ্য)।
উৎসঃ বাংলা একাডেমি অভিধান।

.
নিচের কোনটি বিসর্গ সন্ধির উদাহরণ নয়?
  1. পুরস্কার
  2. তিরস্কার
  3. পরস্পর
  4. আবিষ্কার
  5. ভাস্কর
ব্যাখ্যা

বিসর্গ সন্ধির উদাহরণঃ
পুরঃ + কার = পুরস্কার
তিরঃ + কার = তিরস্কার
আবিঃ + কার = আবিষ্কার
ভাঃ + কর = ভাস্কর

নিপাতনে সিদ্ধ (ব্যঞ্জন) সন্ধিঃ
পর + পর = পরস্পর
গো + পদ = গোষ্পদ
আ + চর্য = আশ্চর্য

উৎসঃ বাংলা ভাষার ব্যাকরণ - নবম-দশম শ্রেণি।

.
সৈয়দ মুজতবা আলীর রচনা নয় কোনটি?
  1. পঞ্চতন্ত্র
  2. পালামৌ
  3. দেশে বিদেশে
  4. চাচাকাহিনী
  5. কোনটিই নয়
ব্যাখ্যা

সঞ্জীবচন্দ্র চট্টোপাধ্যায় রচনা করেন পালামৌ।
সৈয়দ মুজতবা আলীর রচনা করেন -
- পঞ্চতন্ত্র,
- দেশে বিদেশে,
- চাচাকাহিনী
- টুনি মেম ইত্যাদি।
উৎসঃ বাংলা ভাষা ও সাহিত্য জিজ্ঞাসা, ড. সৌমিত্র শেখর।

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শুদ্ধ শব্দগুচ্ছ কোনটি?
  1. গণনা, গনিকা, শোনিত
  2. গনণা, গণিকা, শোনিত
  3. গননা, গণিকা, শোনিত
  4. গননা, গণিকা, শোনিত
  5. গণনা, গণিকা, শোণিত
ব্যাখ্যা
শুদ্ধ শব্দগুচ্ছ হচ্ছে গণনা, গণিকা, শোণিত।
উৎসঃ বাংলা একাডেমি অভিধান।
.
কাঁচা অথচ মিঠা = কাঁচামিঠা কোন সমাস?
  1. কর্মধারয়
  2. তৎপুরুষ
  3. বহুব্রীহি
  4. অব্যয়ীভাব
  5. দ্বন্দ্ব সমাস
ব্যাখ্যা

যেখানে বিশেষণ বা বিশেষণভাবাপন্ন পদের সাথে বিশেষ্য বা বিশেষ্যভাবাপন্ন পদের সমাস হয় এবং পরপদের অর্থই প্রধান রূপে প্রতীয়মান হয়, তাকে কর্মধারয় সমাস বলে।
যেমন -
নীল যে আকাশ = নীলাকাশ।
নীল যে পদ্ম = নীলপদ্ম।
রক্ত যে কমল = রক্তকমল।
কাঁচা অথচ মিঠা = কাঁচামিঠা।
যিনি জজ তিনিই সাহেব = জজ সাহেব।

উৎসঃ বাংলা ভাষার ব্যাকরণ, নবম-দশম শ্রেণি।

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উচ্চারণ স্থান অনুযায়ী দন্ত্য বর্ণ কতটি?
ব্যাখ্যা



উৎসঃ বাংলা ভাষার ব্যাকরণ, নবম-দশম শ্রেণি।

.
'মেছো' শব্দের প্রকৃতি প্রত্যয় কী?
  1. মাছ + ও
  2. মেছ + ও
  3. মাছি + ওয়া
  4. মাছ + উয়া
  5. মাছি + উয়া
ব্যাখ্যা

মেছো শব্দের প্রকৃতি প্রত্যয়ঃ
মাছ + উয়া > ও = মাছুয়া > মেছো।
উৎসঃ বাংলা ভাষার ব্যাকরণ, নবম-দশম শ্রেণি।

মেছুয়া, মেছো (বিশেষ্য):
অর্থঃ
১. মৎসবিক্রেতা।
২. ধীরব; জেলে।
{মাছ+উয়া>}
উৎসঃ বাংলা একাডেমি অভিধান।

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'পানিতে নামো, তবে সাঁতার শিখতে পারবে' - বাক্যটি কোন ধরনের?
  1. যৌগিক বাক্য
  2. জটিল বাক্য
  3. সরল বাক্য
  4. মিশ্র বাক্য
  5. গ ও ঘ
ব্যাখ্যা

পরষ্পর নিরপেক্ষ দুটি বাক্য মিলিত হয়ে যৌগিক বাক্য গঠিত হয়।
যেমন - এখানে দুটি নিরপেক্ষ বাক্য হলো 'পানিতে নাম 'এবং 'সাঁতার শিখতে পারবে'।
এই দুটি নিরপেক্ষ বাক্য 'তবে' অব্যয় দ্বারা সংযুক্ত হয়েছে।

১০.
Choose the answer that Correct the Underlined phrase of the sentences Question (1-5)
If he would have revised his first draft, he would have received a better grade.
  1. would have revised
  2. had revised
  3. could of revised
  4. had of revised
  5. would revise
ব্যাখ্যা
This is an example of the past unreal conditional.
The structure of past real conditional is ‘’If+past perfect tense, Subject + would have+ Past participle.’’
Since the main clause of the sentence has ‘would have received’ so the auxiliary clause will have past perfect tense. so
১১.
Because she had an astounding memory, Shakila has never forgotten an important equation.
  1. had an
  2. could have had
  3. has
  4. did have
  5. has had
ব্যাখ্যা
SInce the main clause is in present tense, so the auxiliary clause will be in present tense .
১২.
Eating, drinking, and to stay up late at night were among her pleasures.
  1. To stay up late
  2. To remain up late
  3. Staying up late
  4. She liked staying up late
  5. To try to stay up late
ব্যাখ্যা
Sentences generally follow parallel structure. so, It will be eating, drinking and staying.
১৩.
The government requires that these forms should be submitted before the end of the financial year.
  1. That these forms should be submitted
  2. That these forms be submitted
  3. For these forms to be submitted
  4. These forms submission
  5. These forms should be submitted
ব্যাখ্যা
Some verbs follow the rules of subjunctive. In that case, the other verb of the sentence will be in base from. Some verbs are advise, ask, command, demand, desire, insist, order, prefer, propose, recommend, request, suggest etc.
Source: https://www.englishclub.com/grammar/subjunctive.htm
১৪.
Many scientists are still hoping to have found life on another planet.
  1. To have found
  2. To find
  3. Two find
  4. To have been found
  5. Too have found
ব্যাখ্যা
The following ver generally followed by infinitive



Source: https://learnenglish.britishcouncil.org/english-grammar-reference/verbs-followed-by-the-infinitive.
১৫.
Fill in the blanks with the appropriate word (Question 6 to 9)
Shall I phone the restaurant ______ table?
  1. to reserve
  2. for reserve
  3. to reserving
  4. for reserving
  5. in reserving
ব্যাখ্যা
Some verbs are followed by a noun and the infinitive with to. Please follow previous link.
১৬.
Maruf is a Bangladeshi but he lives in England. He has been there __.
  1. for five years
  2. since five years
  3. five years ago
  4. during five years
  5. till five years
ব্যাখ্যা
We use for with a period of time in the past, present or future.
We use since with a point in time in the past.
Source: https://dictionary.cambridge.org/us/grammar/british-grammar/for-or-since.
১৭.
Don’t forget to thank your parents for putting ______with you all these years!
  1. on
  2. up
  3. for
  4. in
  5. over
ব্যাখ্যা
Put up with means ‘to bear with’. So the answer is up.
১৮.
The history teacher asked us to comment ______ the events taking place ______ Afghanistan.
  1. on, on
  2. for, in
  3. for, at
  4. on, at
  5. on, in
ব্যাখ্যা
Comment on (appropriate preposition)
‘In’ before country.
১৯.
DEARTH : PAUCITY
  1. Huge : Empty
  2. Scarcity : Shortage
  3. Gentle : Rude
  4. Large : Short
  5. Punctual : Late
ব্যাখ্যা
Dearth means lack, scarcity, scarceness, shortage, shortfall, want, deficiency, insufficiency, inadequacy, paucity, sparseness, meagreness, scantiness, rareness, infrequency, uncommonness, destitution, privation
Dearth is similar to paucity in meaning. Scarcity is similar to shortage in meaning .
২০.
STEAM: GEYSER
  1. Correct: Inverted
  2. Hear: Inaudible
  3. Coal: Mine
  4. Lava: Volcano
  5. Rock: Quarry
ব্যাখ্যা
Steam means The invisible gaseous form of water.
Geyser means a hot spring in which water intermittently boils.
Steam is emitted from Geyser. Lava is emitted from Volcano.
২১.
CUSTOMER: SHOPKEEPER
  1. Patron: Concert
  2. Member: Club
  3. Advocate: Policy
  4. Peddler: House
  5. Client: Lawyer
ব্যাখ্যা
Shopkeeper entertains customers. Lawyer entertains clients .
২২.
For each word in capital letter, select a word having the OPPOSITE meaning (Question no 29 to 30)
TRIVIAL
  1. Innocent
  2. Refuse
  3. Dark
  4. Significant
  5. Repeat
ব্যাখ্যা
Trivial means a little value or importance.
Synonym: unimportant, insignificant, inconsequential, minor, of little account, of no account, of little consequence, of no consequence, of little importance, of no importance, not worth bothering about, not worth mentioning.
২৩.
EFFICACY
  1. Inmate
  2. Intimacy
  3. Dark
  4. Inefficiency
  5. Applaud
ব্যাখ্যা
EFFICACY means The ability to produce a desired or intended result.
Synonym: success, successfulness, efficacy, productiveness, fruitfulness, potency, power.
২৪.
For each word in capital letter, select a word having the Similar meaning (Question no 31 to 32)
ANECDOTE
  1. Antidote
  2. Article
  3. Anger
  4. Fable
  5. Arrive
ব্যাখ্যা
Anecdote means A short amusing or interesting story about a real incident or person.
Synonym: story, tale, narrative, sketch, fable.
২৫.
RAMIFICATION
  1. Precision
  2. Consequences
  3. Report
  4. Cognizance
  5. Legality
ব্যাখ্যা
Ramification means A complex or unwelcome consequence of an action or event.
Synonym: consequence, result, aftermath, outcome, effect, upshot, issue, sequel.
২৬.
Sharif ran a 2 mile race at an average speed of 8 miles per hour. If Arif ran the same race an average speed of 6 mile per hour, how many minutes longer than Sharif did Arif take to complete the race?
  1. 15
  2. 10
  3. 8
  4. 5
  5. None of these
ব্যাখ্যা

D = T × S
Sharif takes, 2 = T × 8
or, T = 1/4 hours
or T = 15 minutes
Arif Takes, 2 = T × 3
or, T = 1/3
or, T = 15 minutes
Difference = (20 - 15) = 5 minutes.

২৭.
Three workers can do a job in 12 days. Two of the workers work twice as fast as the third. How long would it take one of the faster workers to do the job alone?
  1. 30
  2. 35
  3. 40
  4. 42
  5. None of these
ব্যাখ্যা

Let, the first and 2nd worker need X days.
Third worker needs 2X days
ATQ, 1/X + 1/X + 1/2x = 1/12
or, (2 + 2 + 1)/2x = 1/12
or, x = 30

২৮.
A rectangular area of 16 meter by 12 meter, is surrounded by a road 3 meters wide. The area of the road is
  1. 78
  2. 132
  3. 204
  4. 216
  5. None of these
ব্যাখ্যা

Area of rectangle without road = 16 × 12 = 192
Area of rectangle with road = (16 + 2 × 3) × (12 + 2 × 3) = 396
Area of road = 396 - 192 = 204.

২৯.
A train covers the distance x between two cities in y hours, arriving 2 hours late. What rate would permit the train to arrive on schedule?
  1. (x/y) - 2
  2. x/(y - 2)
  3. xy - 2
  4. x/(y + 2)
  5. None of these
ব্যাখ্যা

Since the train is late, the allotted time = Y - 2.
D = T × S
X = (Y - 2) × S
or, S = X/(Y - 2)

৩০.
Coffee A normally costs 100 taka per pound. It is mixed with coffee B, which normally costs 70 taka per pound, to form a mixture which costs 88 taka per pound. If there are 10 pounds of the mix, how many pounds of coffee A are used in the mix?
  1. 4
  2. 5
  3. 6
  4. 7
  5. None of these
ব্যাখ্যা

Amount of A in the mixture = 10 × (3/5)
= 6

৩১.
The area of a square plot is twice that of another square plot. If the diagonal of the bigger plot is x, what is the diagonal of the smaller plot?
  1. x/2
  2. x/4
  3. 2x/3
  4. √2x/2
  5. x
ব্যাখ্যা

Area of square = d2/2 (d for diagonal)
so, area of bigger square = x2/2
so area of smaller square = x2/4 (half of the bigger one)
one side of smaller square = √(x2/4)
= x/2
diagonal of smaller square d2 = (x/2)2 + (x/2)2
d = root 2 × x/2.

৩২.
The ratio of green marbles to red marbles in a box 3:5. If there are 24 marbles in the box, how many additional green marbles will be required to make the ratio of green marbles to red marbles 1:1?
  1. 12
  2. 9
  3. 6
  4. 3
  5. 2
ব্যাখ্যা

Number of green ball = 24 × (3/8) = 9
Number of red ball= 24 × (5/8) = 15
since the required ratio is 1:1
so, additional green ball = (15 - 9) = 6

৩৩.
Club A has 20 members and club B has 28. If a total of 42 people belong to the two clubs, how many people belong to both clubs?
  1. 3
  2. 4
  3. 5
  4. 6
  5. 7
ব্যাখ্যা

Total Number = Club A + Club B - both club (van Diagram)
or, 42 = 20 + 28 - both
or, both = 6.

৩৪.
A sales person earns a commission of 5% on all sales between Tk. 2000 and Tk. 6000 and 8% on all sales over Tk. 6000. What is his total commission in a week in which his sales total Tk. 10,000?
  1. 500
  2. 540
  3. 620
  4. 720
  5. 800
ব্যাখ্যা

Commission for sale upto 6000 = 6000 × 5% = 300
Commission for sales over 6000 = 4000 × 8% = 320
Total commission = 620.

৩৫.
If X is an odd integer and Y is an even integer. Which of the following statements is (are) always true?
(I) (X + Y) is odd
(II) XY is odd
(III) (2X + Y) is even
  1. I only
  2. II and III only
  3. III only
  4. I and III only
  5. None of these
ব্যাখ্যা

odd + even = odd (4 + 5 = 9)
odd × even = even (4 × 5 = 20)
even × odd = even × even = even (2 × 5 + 4 = 14).

৩৬.
In a school with the same number of boys and girls, 1/8th of the girls and 5/6th of the boys are residing in the hostel. What percent of the students consists of boys who do not reside in the hostel?
  1. 1/12
  2. 1/6
  3. 7/48
  4. 13/48
  5. None of these
ব্যাখ্যা

Let,
Number of girls = boys = 24 (LCM of 8 and 6)
boys who do not reside in hostel = 24 - (5 × 24/6)
= 24 - 20
= 4
The students consist of boys who do not reside hostel = 4/(2 × 24)
= 1/12.

৩৭.
A football team has 40 games out of 60 played. It has 32 more games to play. How many of these must the team win to make it record 75% win for the seasons?
  1. 20
  2. 25
  3. 29
  4. 32
  5. None of these
ব্যাখ্যা

Total match = 60 + 32 = 92
75% of 92 = 69
Match needed to win = 69 - 40
= 29.

৩৮.
Of 24 kg of salt water 8% is salt; of another 4% is salt, how many kgs of the second mixture should be added to the first mixture in order to get a mixture that is 5% salt?
  1. 48
  2. 56
  3. 64
  4. 72
  5. None of these
ব্যাখ্যা

(C1 × Q1 + C2 × Q2)/(Q1 + Q2) = P
or, (8 × 124 + 4 × Q2)/(24 + Q2) = 5
or, 192 + 4 × Q2 = 120 + 5 × Q2
or, Q2 = 72

৩৯.
The ratio of boys to girls in a class is 2:5. If 2 boys leave and 4 girls join the class, the ratio of boys to the girls becomes 1:4. Originally, how many girls were in the class?
  1. 16
  2. 20
  3. 21
  4. 24
  5. None of these
ব্যাখ্যা

Boys = 2X
Girls = 5X
ATQ,
(2X - 2)/(5X + 4) = 1/4
or, 8X - 8 = 5X + 4
or, 3X = 12
or, X = 4
so, girls = 5 × 4 = 20.

৪০.
A trader buys egg for TK. M dozen and sells them for Tk M/6 per piece. What is his profit?
  1. 20%
  2. 50%
  3. 60%
  4. 100%
  5. None of these
ব্যাখ্যা

Selling price of egg Tk (M/6) × 12 per dozen
= 2M
profit = 2M - M = M
profit percentage = (M/M) × 100
= 100%.

৪১.
Arif travels 1/3rd of the distance at an average speed of 5 km/hr, 2/5the of the distance at an average speed of 4 km/hr and the rest 12 miles in 2 hours. What is the total distance traveled by Arif?
  1. 45
  2. 48
  3. 52
  4. 54
  5. None of these
ব্যাখ্যা

Distance = X
Distance covered at 5km and 4 km = x/3 + 2x/5
= (5x + 6x)/15
= 11x/15
Rest of the distance = 1 - 11x/15 = 4x/15
ATQ,
4x/15 = 12
or, x = (12 × 15)/4
or, x = 45.

৪২.
Five consecutive integers are given. If the sum of the three integers is 24, what is the sum of the last three?
  1. 27
  2. 28
  3. 29
  4. 30
  5. None of these
ব্যাখ্যা

X + X + 1 + X + 2 = 24
or 3X + 3 = 24
or, X = 7
last three (7 + 2) + (7 + 3) + (7 + 4) = 30.

৪৩.
A mother can do a job as fast as her two daughters working together. If one daughter does the job alone in 3 hours and the other does it alone in 6 hours, how many hours does it take the mother to do the job alone?
  1. 2
  2. 3
  3. 4
  4. 6
  5. None of these
ব্যাখ্যা

First daughter, in 1 hour, did 1/3 part
Second daughter, in 1 hour, did 1/6 part
Mother, in 1 hour, did (1/3 + 1/6) part
= 3/6 part
= 1/2 part
so, mother did it in 2 days.

৪৪.
Before anybody could notice, Arif took 1/3 of the chocolates from a box. Later, his three sisters arrived and the remaining chocolates were distributed equally among the four of them. Arif received a total of 48 chocolates. How many did each of her sisters receive?
  1. 16
  2. 18
  3. 21
  4. 24
  5. None of these
ব্যাখ্যা

Let,
Total Chocolates = X
First time Arif took = X/3
Rest Amount = X - (X/3) = 2X/3
Amount of Chocolate when it divided equally = (2X/3) × (1/4)
= X/6
ATQ,
x/6 + x/3 = 48
Or, X/2 = 48
Or, X = 96
So, each sister got = 96/6
= 16

৪৫.
A ferry can carry 20 buses or 32 cars. If there are 15 buses on the ferry, how many cars can be loaded onto it?
  1. 6
  2. 8
  3. 12
  4. 15
  5. None of these
ব্যাখ্যা

Space is vacant for (20 - 15) = 5 buses
20 buses = 32 cars
1 bus = (32/20) cars
5 buses = (32/20) × 5
= 8 buses

৪৬.
The current of a stream at 1 kmph. A motor boat goes 35 km upstream and back to the starting point in 12 hours. The speed of the motor boat in still water is?
  1. 8 kmph
  2. 6 kmph
  3. 7.5 kmph
  4. 5.5 kmph
  5. 5 Kmph
ব্যাখ্যা

Speed of the stream = 1
Motor boat speed in still water be = x kmph
Downstream = x + 1 kmph
Up Stream = x - 1 kmph
[35/(x + 1)] + [35/(x - 1)] = 12
x = 6 kmph

৪৭.
A college has 10 basketball players. A 5-member team and a captain will be selected out of these 10 players. How many different selections can be made?
  1. 1260
  2. 1400
  3. 1250
  4. 1600
  5. 1700
ব্যাখ্যা

A team of 6 members has to be selected from the 10 players.
This can be done in 10C6 or 210 ways.
Now, the captain can be selected from these 6 players in 6 ways.
Therefore, total ways the selection can be made is = 210 × 6
= 1260

৪৮.
Which bank is formed by merging Shilpa Bank and Shilpa Rin Sangstha?
  1. Basic Bank
  2. Uttara Bank
  3. National Bank
  4. AB Bank
  5. BDBL
ব্যাখ্যা

বাংলাদেশ শিল্প ব্যাংক এবং বাংলাদেশ শিল্পঋণ সংস্থার বিলুপ্তির মাধ্যমে ২০০৯ সালে - বাংলাদেশ ডেভেলপমেন্ট ব্যাংক লিমিটেড (BDBL) প্রতিষ্ঠিত হয়।
উৎসঃ বাংলাপিডিয়া।

৪৯.
Bir Shreshtha Ruhul Amin joined in-
  1. Army
  2. Air Force
  3. Navy
  4. EPR
  5. কোনটিই নয়
ব্যাখ্যা

বীরশ্রেষ্ঠ মোহাম্মদ রুহুল আমিন(১৯৩৫-১৯৭১):
১৯৩৫ সালের জুন মাসে ফেনী জেলার বেগমগঞ্জ থানার বাঘচাপড়া গ্রামে তাঁর জন্ম। পিতা  মোহাম্মদ আজহার পাটোয়ারি এবং মাতা জোলেখা খাতুন। ছোটবেলায় তাঁর পড়াশোনা শুরু হয় পাড়ার মক্তবে, পরে বাঘচাপড়া প্রাইমারি স্কুল এবং আমিষা পাড়া হাইস্কুলে।
১৯৫৩ সালে তিনি নৌবাহিনীতে জুনিয়র মেকানিক্যাল ইঞ্জিনিয়ার হিসেবে যোগ দেন।
উৎসঃ বাংলাপিডিয়া।

৫০.
Which among the following countries had proposed the Nuclear Non-Proliferation Treaty?
  1. Netherlands
  2. Sweden
  3. Ireland
  4. New Zealand
  5. Denmark
ব্যাখ্যা

Ireland had proposed the Nuclear Non-Proliferation Treaty.
The Treaty on the Non-Proliferation of Nuclear Weapons, commonly known as the Non-Proliferation Treaty or NPT, is an international treaty whose objective is to prevent the spread of nuclear weapons.
Source: UN Treaties.

৫১.
Which of the following countries is not a member of the G-7 group?
  1. Germany
  2. France
  3. Italy
  4. Spain
  5. Japan
ব্যাখ্যা

G-7 nations - Canada, France, Germany, Italy, Japan, the United Kingdom, and the United States.
Source: Britannica.com

৫২.
"At Night All Blood" is Black is written by -
  1. Shuggie Bain
  2. Margaret Atwood
  3. Bernardine Evaristo
  4. David Diop
  5. J.Rowlinging
ব্যাখ্যা

At Night All Blood is Black is written by French novelist David Diop.
At Night All Blood is Black captures the tragedy of a young man's mind hurtling towards madness and tells the little-heard story of the Senegalese who fought for France on the Western Front during the First World War.
Source: The Booker Prize Website.

৫৩.
The Indonesian Navy recently lost a submarine that sank off the coast of -
  1. Bali
  2. Komodo
  3. Lombok
  4. Bintan
  5. Jakarta
ব্যাখ্যা

An Indonesian navy submarine that disappeared off the island of Bali on 21 April, 2021 with 53 people onboard.
Source: The Guardian.

৫৪.
Who invented the copy-paste command?
  1. Barbara Liskov
  2. Guido Van Rassum
  3. Brendan Eich
  4. Richard Feynman
  5. Larry Tesler
ব্যাখ্যা
Larry Tesler is best known for inventing copy-paste alongside his colleague, Tim Mott.
Source: tiny.cloud
৫৫.
Which one of the following is Cloud Platform by Amazon?
  1. Azure
  2. AWS
  3. Cloudera
  4. Dropbox
  5. All of the above
ব্যাখ্যা

Amazon web service (AWS) is one of the most successful cloud-based businesses, which offers infrastructure as a service and lets you rent virtual computers on its own infrastructure.
Source: aws.amazon.com

৫৬.
Which type of topology is best suited for large businesses which must carefully control and coordinate the operation of distributed branch outlets?
  1. Ring
  2. Local area
  3. Hierarchical
  4. Star
  5. None of the above
ব্যাখ্যা

The best cabled network topology for large businesses is star topology.
This is because it is easier to control from the central console as the management software just needs to communicate with the switch to get full traffic management features.

Source: coumputertech.com

৫৭.
_________ is identified as a fourth generation language.
  1. COBOL
  2. FORTRAN
  3. C
  4. C++
  5. Python
ব্যাখ্যা
Fourth generation language:
These are languages that consist of statements that are similar to statements in the human language. These are used mainly in database programming and scripting.
Examples of these languages include - Perl, Python, Ruby, SQL, MatLab(MatrixLaboratory).
Source: geeksforgeeks.org
৫৮.
Which provides the fastest access to large video files?
  1. Optical drives
  2. SCSI hard drives
  3. IDE hard drives
  4. EIDE hard drives
  5. Compact Disk drive
ব্যাখ্যা
A small computer systems interface (SCSI) is a standard interface for connecting peripheral devices to a PC. Depending on the standard, generally it can connect up to 16 peripheral devices using a single bus including one host adapter.
SCSI is used to increase performance, deliver faster data transfer transmission and provide larger expansion for devices such as CD-ROM drives, scanners, DVD drives and CD writers.
Source: techopedia.com
৫৯.
Files and directories of graphical user interface of operating system programs are known as-
  1. Commands
  2. Graphics
  3. Text
  4. Folders
  5. Picture
ব্যাখ্যা
Files and directories of graphical user interface of operating system programs are known as Folders.
৬০.
A computer language that is written in binary codes only is-
  1. C
  2. C++
  3. Java
  4. pascal
  5. machine language
ব্যাখ্যা

Machine Language is written in binary codes only. It can be easily understood by the computer and is very difficult for us to understand.
A machine language, unlike other languages, requires no translators or interpreters.
Source: Sciencedirect.com

৬১.
Which of the following is the default standard layout in PowerPoint?
  1. Blank slide
  2. Animated slide
  3. Content slide
  4. Title slide
  5. None of the above
ব্যাখ্যা

Title slide:
A title slide in PowerPoint can take on many different definitions, but in most cases, it is the first slide in the slide deck and appears in the PowerPoint workspace when that presentation is opened.
By default, in PowerPoint, the title slide offers two text boxes for a title and subtitle.
Source: Techopedia.com

৬২.
Which of the following is not a valid data type in Excel?
  1. Number
  2. Character
  3. Label
  4. Date
  5. All of the above
ব্যাখ্যা
There are Three types of data in cells: labels, values, and formulas.
Labels (text) are descriptive pieces of information, such as names, months, or other identifying statistics, and they usually include alphabetic characters.
Values (numbers) are generally raw numbers or dates.
Formulas are instructions for Excel to perform calculations.
৬৩.
Which of the following instruments is used to convert mechanical energy into electrical energy?
  1. Galvanometer
  2. Voltmeter
  3. Dynamo
  4. Steam Engine
  5. Battery
ব্যাখ্যা

Electric generator, also called dynamo, any machine that converts mechanical energy to electricity for transmission and distribution over power lines to domestic, commercial, and industrial customers. Generators also produce the electrical power required for automobiles, aircraft, ships, and trains.
Source: Britannica.com

৬৪.
Which apparatus is used for recording the movement of the lungs?
  1. Sphygmophone
  2. Scotograph
  3. Spirograph
  4. Sonometer
  5. None of the above
ব্যাখ্যা
Spirograph is used for recording the movement of the lungs.
৬৫.
The main reason for blueness of the sky is -
  1. Due to the presence of water vapor.
  2. Due to the absorption of blue light due to the air.
  3. Due to the absorption of blue waves.
  4. Due to the scattering of sunlight by air molecules
  5. All of the above.
ব্যাখ্যা
A clear and cloudless sky is blue because the air molecules scatter blue light more than the red light from the sun.
At the time of sunset, we see orange and red colors because of the scattering out of blue light.