উৎসঃ বাংলা ভাষার ব্যাকরণ নবম-দশম শ্রেণি, বাংলা একাডেমি অভিধান।
৩.
নিচের কোনটি বলকের উদাহরণ?
ক
লোকটি
খ
তখনই
গ
ভালোটুকু
ঘ
করলাম
ঙ
ছেলেরা
ব্যাখ্যা
উৎস: নবম-দশম শ্রেণি, বাংলা ব্যাকরণ (২০২১ সংস্করণ)
৪.
নিচের কোনটি সঠিক নয়?
ক
সন্ধির মাধ্যমে নতুন শব্দ তৈরি হয়
খ
সন্ধি শব্দের অর্থ মিলন
গ
খাঁটি বাংলা শব্দের সাথে বিসর্গ সন্ধি করা যায় না
ঘ
বাংলা ক্রিয়াপদের সাথে সন্ধি করা যায় না
ঙ
কোনটিই নয়
ব্যাখ্যা
'সন্ধি' শব্দের অর্থ মিলন।
• সন্ধির কতিপয় উদ্দেশ্য: - সন্ধি মাধ্যমে ধ্বনির মিলন হয়। - নতুন শব্দ তৈরি করা হয়। - উচ্চারণে সহজতা আসে।
• সন্ধির ক্ষেত্রে বর্জনীয়: - বাংলা ক্রিয়াপদের সাথে সন্ধি করা যায় না। - খাঁটি বাংলা শব্দের সাথে বিসর্গ সন্ধি করা যায় না।
উৎসঃ ভাষা শিক্ষা-ড. হায়াৎ মাহমুদ।
৫.
কোন বানানগুচ্ছ শুদ্ধ?
ক
বিকিরন, অতিথি, তিতিক্ষা
খ
শুশ্রুষা, নিশীথ, মুহূর্ত
গ
সমীচীন, মহীয়সী, মনীষি
ঘ
অপিনিহিতি, মুহুর্মূহু, নিশীথিনী
ঙ
কোনটিই নয়
ব্যাখ্যা
প্রথম গুচ্ছের অশুদ্ধ বিকিরন শব্দের শুদ্ধরূপ বিকিরণ। দ্বিতীয় গুচ্ছের অশুদ্ধ শুশ্রুষা শব্দের শুদ্ধরূপ শুশ্রূষা। তৃতীয় গুচ্ছের অশুদ্ধ মনীষি শব্দের শুদ্ধরূপ মনীষী। চতুর্থ গুচ্ছের অশুদ্ধ মুহর্মুহু শব্দের শুদ্ধরূপ মুহুর্মুহু।
উৎস : বাংলা একাডেমি আধুনিক বানান অভিধান
৬.
নিচের কোন দুইটি বাগধারা সমার্থক বোঝাতে ব্যবহৃত হয়?
ক
অকাল কুষ্মান্ড ও অন্ধের ষষ্ঠি
খ
বর্ণচোরা ও বকধার্মিক
গ
অন্ধের নড়ি ও অকাল কুষ্মান্ড
ঘ
অন্ধের ষষ্ঠি ও অন্ধের নড়ি
ঙ
খ ও ঘ
ব্যাখ্যা
বর্ণচোরা ও বকধার্মিক বাগধারা দুইটির অর্থ ভন্ড। অন্ধের ষষ্ঠি ও অন্ধের নড়ি বাগধারা দুইটির অর্থ একমাত্র সম্বল। কুষ্মান্ড বাগধারার অর্থ - অপদার্থ, অকেজো।
উৎসঃ ভাষা - শিক্ষা, ড. হায়াৎ মামুদ, বাংলা ভাষার ব্যাকরণ (নবম-দশম শ্রেণী)
৭.
The Mekong is also home ___________ the world’s largest catfish.
ক
for
খ
in
গ
to
ঘ
within
ঙ
at
ব্যাখ্যা
- Option 1 'For' cannot be used because the phrase 'home for something' is incorrect. - Option 2 'In' cannot be chosen because 'home in something' does not make any sense in the given context. - Option 4 'within' cannot be chosen because it does not make the sentence meaningful. - Option 3 'to' is the best fit. The phrase 'to be home to something' means to be the place where that thing is located or, in the case of living things, where they live. - Hence option 3 is the answer.
৮.
_______ is an example of a Proper Noun.
ক
England
খ
Nation
গ
Lake
ঘ
Globe
ঙ
All of the above
ব্যাখ্যা
A proper noun is a noun that identifies a single entity and is used to refer to that entity or is the name given to something to make it more specific. Let us explore the options: 'England' is a proper noun as it refers to a specific country. 'Nation' is a common noun as it is denoting a class of objects or a concept as opposed to a particular individual. A common noun is a non-specific person, place, or thing. 'Lake' is also a common noun as it is denoting a class of objects or a concept as opposed to a particular individual. A common noun is a non-specific person, place, or thing. 'Globe' is also a common noun as it is denoting a class of objects or a concept as opposed to a particular individual. A common noun is a non-specific person, place, or thing. Hence, the option 'England' is the correct answer.
৯.
Pecuniary : Financial is analogous to -
ক
Condolences : Congratulation
খ
Doleful : Merry
গ
Subsequent : Preceding
ঘ
Noxious : Harmful
ঙ
None of the above
ব্যাখ্যা
The Bengali meaning of question words: Pecuniary: অর্থসংক্রান্ত। Financial: অর্থসংক্রান্ত; আর্থিক।
The Bengali meaning of option words: Noxious: অনিষ্টকর; ক্ষতিকর; অপকারী। Harmful: ক্ষতিকর।
Condolences: শোকপ্রকাশ। Congratulation: অভিনন্দন; অভিনন্দনবাক্য বা বার্তা।
Pecuniary এবং Financial পরষ্পর সমার্থক শব্দ তেমনি Noxious এবং Harmful পরষ্পর সমার্থক শব্দ।
Source: Bangla Academy Dictionary.
১০.
Employers look for agility in workers in small-part production plants. Here the underlined word means -
ক
Flexibility
খ
Liveliness
গ
Alertness
ঘ
Dexterity
ঙ
None of the above
ব্যাখ্যা
Agility - able to move your body quickly and easily. Dexterity - the ability to perform a difficult action quickly and skilfully with the hands. So, Agility = Dexterity. Source: Cambridge Dictionary.
১১.
Change into Passive Voice. He increased his pace as the sunset approached.
ক
His pace is increased by him as the sunset approached.
খ
His pace was increased by him as the sunset approached.
গ
His pace has increased by him as the sunset approached.
ঘ
His pace has been increased by him as the sunset approached.
ঙ
His pace had been increased by him as the sunset approached.
ব্যাখ্যা
The given sentence is in active voice, as the subject is performing the action. The tense of the sentence is Simple past, which follows- Active – S + V2 + O Passive – O + was/were + V3 + by + S. The passive form of the given sentence is correct in option B.
১২.
Several amendments were added to the club rules over the summer, but unfortunately ________ amendments did not promote inclusiveness.
ক
a
খ
an
গ
the
ঘ
is
ঙ
none of the above
ব্যাখ্যা
'Amendments' is a generic noun in the given sentence. When a generic noun is used without an article and then referred to in a subsequent reference, it will become specific and hence will require a definite article. thus option 3 is the correct choice for the given blank. The complete sentence is - 'Several amendments were added to the club rules over the summer, but unfortunately the amendments did not promote inclusiveness.'
১৩.
Choose correct indirect speech:
Shelly said, “I will not attend the classes now”.
ক
Shelly said that she will not attend the classes then.
খ
Shelly said that she would not attend the classes now.
গ
Shelly said that she would not attend the classes then.
ঘ
Shelly said that she should not attend the classes then.
ঙ
None of the above
ব্যাখ্যা
The correct answer is option 3.
The given sentence is direct speech and is an assertive statement.
Here the reporting verb is in Past tense. In Future Simple tense, ‘will’ changes into ‘would’ in Indirect form. Also, the pronoun ‘I’ will be replaced by ‘she’, and ‘now’ changes to ‘then’.
১৪.
This area suffers from __________ .
ক
droaghts
খ
draught
গ
drafts
ঘ
drought
ঙ
none of the above
ব্যাখ্যা
- ‘Draught’ means 'a current of cool air in a room or other confined space.' - Example: Heavy curtains at the windows cut out draughts. - ‘Drought’ means ‘A prolonged period of abnormally low rainfall, leading to a shortage of water.' - Example Sentence: Crops have failed because of drought. - ‘drafts’ is ‘a rough copy’. - ‘droaghts’ is a misspelled word.
- So option 4 is the correct answer, as you suffer if something is lacking like rain.
১৫.
The average age of four brothers is 12 years. If the age of their mother is also included, the average is increased by 5 years. What is the age of the mother(in year)?
ক
50
খ
45
গ
74
ঘ
37
ঙ
85
ব্যাখ্যা
Sum of age of four brothers = 12 × 4 = 48 If the age of their mother is also included, the average is increased by 5 years. So, the average age of four brothers and their mother is (12 + 5) years or 17 years. Sum of age of four brothers and their mother = (17 × 5) years = 85 years ∴ Mother's age = (85 - 48) years = 37 years
১৬.
What reminder of any perfect square is divided by 3?
ক
0
খ
1
গ
0 or 1
ঘ
0 and 1
ঙ
None
ব্যাখ্যা
When a perfect square is divided by 3, the remainder is always 0 or 1. It is zero when the base number (a in case of a^2) is divisible by 3. For example - 32 is divided by 3. So, we get 0 as a remainder. For all other numbers, the square when divided by 3, the remainder is always 1. When the number is divisible by 3, the remainder is obviously going to be zero. Let’s say the number is not divisible by 3. Such a number is always in the form of 3a + 1 or 3a - 1, for example 4 = 3 × 2 + 1 and 5 = 3× 2 - 1. Now, when you square 3a + 1, you get 9a2 + 6a + 1. Now 9a2 + 6a = 3×(3a2+2), therefore that portion is divisible by 3 and what remains (remainder) is 1. Similarly, when you square 3a - 1, you get 9a2 - 6a + 1. Now 9a2 - 6a = 3×(3a2-2), therefore that portion is divisible by 3 and what remains (remainder) is 1. Thus, in all situations, we find that the remainder is 1 when the starting number is not divisible by 3.
১৭.
What is the sum of all positive integers up to 1000, which are divisible by 5 and are not divisible by 2?
ক
40000
খ
50000
গ
60000
ঘ
70000
ঙ
80000
ব্যাখ্যা
The positive integers, which are divisible by 5 are 5, 10, 15, ....., 1000 Out of these 10, 20, 30, ......, 1000 are divisible by 2 Thus, we have to find the sum of the positive integers 5, 15, 25, ......, 995 If n is the number of terms in it the sequence then 995 = 5 + 10(n - 1) ⇒ 1000 = 10n ∴ n = 100 Thus the sum of the series = (1st term + last term) × Number of term ÷ 2 = (5 + 995) × 100 ÷ 2 = 50000
১৮.
By selling a bicycle for 2,850 taka, a shopkeeper gains 14%. If the profit is reduced to 8%. What is the selling price?
ক
2600
খ
2700
গ
2780
ঘ
2820
ঙ
2950
ব্যাখ্যা
Let Cost Price was y. or, y + 14% of y = 2850 or, y + 14y/100 = 2850 ∴ y = 2500. So, Cost Price = 2500 taka. Now, When profit remains at 8%, Selling Price = 2500 taka + 8% of 2500 taka = 2700 taka.
১৯.
Asif can copy 50 pages in 10 hours; Asif and Tamim together can copy 300 pages in 40 hours. In how much time(hour) can Tamim copy 30 pages?
ক
9
খ
10
গ
11
ঘ
12
ঙ
13
ব্যাখ্যা
Number of page copied by (Asif and Tamim) in 1 hour = 300/40 = 7.5 pages; Asif copied pages in one hour = 50/10 = 5 pages Hence, Tamim copied pages in one hour = 7.5 - 5 = 2.5 pages Thus, Tamim can copy 30 pages in 30/2.5 hours or 12 hours
২০.
An observer 1.6 m tall is 20√3 away from a tower. The angle of elevation from his eye to the top of the tower is 30º. What is the heights of the tower?
ক
24.72 m
খ
34.72 m
গ
21.6 m
ঘ
34.6 m
ঙ
24.6 m
ব্যাখ্যা
Let AB be the observer and CD be the tower. Draw BE ⊥ CD Then CE = AB = 1.6 m BE = AC = 20√3 m
DE/BE=tan30∘ or, DE/BE= 1/√3 or, DE√3 = BE or, DE√3 = 20√3 ∴ DE = 20 ∴ The heights of the tower = (20 + 1.6) m = 21.6 m
২১.
A is two years older than B who is twice as old as C. If the total of the ages of A, B and C be 27, the how old is B?
ক
8 years
খ
9 years
গ
10 years
ঘ
11 years
ঙ
14 years
ব্যাখ্যা
Let C's age be x years. Then, B's age = 2x years. A's age = (2x + 2) years. ∴ (2x + 2) + 2x + x = 27 ⇒ 5x = 25 ⇒ x = 5. Hence, B's age = 2x = 10 years.
২২.
A clock starts at noon. By 20 minutes past 4, the hour hand has turned through:
ক
39°
খ
29°
গ
49°
ঘ
69°
ঙ
38°
অনির্ধারিত
ব্যাখ্যা
Angle traced by hour hand in 12 hrs = 360∘ Angle traced by hour hand in 1 hr = 360∘/12 = 30∘
Angle traced by hour hand in 4 hrs 20 min = 30∘ × 4 hrs 20 min = 30° × (4 +20/60) hours = 30° × (4 + 1/3) = (30 × 13/3)° = 130°
২৩.
A right triangle with sides 3 cm, 4 cm and 5 cm is rotated the side of 3 cm to form a cone. What is the volume of the cone so formed?
ক
7π cm3
খ
8π cm3
গ
9π cm3
ঘ
10π cm3
ঙ
12π cm3
ব্যাখ্যা
Given that, radius, r = 3 cm and height, h = 4 cm Therefore, volume, V = (1/3) × πr2h = (1/3) × π × 32 × 4 = 12π cm3
২৪.
What is the H.C.F. of 27/10, 12/25, 36/35 and 21/40?
ক
3/1400
খ
252/5
গ
63/160
ঘ
50/908
ঙ
3/700
ব্যাখ্যা
Required HCF = (H.C.F. of 27, 12, 36 and 21) ÷ (L.C.M. of 10, 25, 35 and 40) = 3/1400
২৫.
√0.01 + √0.81 +√1.21+√0.0009 = ?
ক
2.13
খ
2.03
গ
3.03
ঘ
3.01
ঙ
2.06
ব্যাখ্যা
The sum of √0.01 + √0.81 +√1.21+√0.0009 = 0.1 + 0.9 + 1.1 + 0.03 = 2.13
২৬.
An outlet pipe can empty a cistern in 3 hours. In what time will empty 2/9 of the cistern?
ক
20 minutes
খ
30 minutes
গ
40 minutes
ঘ
50 minutes
ঙ
70 minutes
ব্যাখ্যা
The outlet pipe empties the one complete cistern in 3 hours Time taken to empty 2/9 part of the cistern = (2/9) × 3 hour = (2/9) × 3 × 60 minutes = (2/9) × 3 × 60 minutes = 40 minutes
২৭.
ক
64
খ
128
গ
256
ঘ
512
ঙ
1024
২৮.
A man buys 50 taka shares in a company which pays 10% dividend. If the man gets 12.5% on his investment, at what price did he buy the shares ?
ক
30
খ
35
গ
40
ঘ
45
ঙ
50
ব্যাখ্যা
Dividend on 1 share = 50 × 10% = 5 12.50 taka is an income on an investment of 100 taka 5 taka is an income on an investment of (100 × 5/12.50) taka = 40 taka ∴ Cost of 1 share = 40 taka
২৯.
List price of an article at a showroom is 2000 taka and it is being sold at successive discount of 20% and 10%, what will be net selling price of it?
ক
1440 taka
খ
1240 taka
গ
1340 taka
ঘ
1140 taka
ঙ
1200 taka
ব্যাখ্যা
List price of an article = 2000 taka After discount, selling price = 2000 taka × 80% × 90% = 1440 taka
৩০.
ক
4/3
খ
5/2
গ
6/5
ঘ
9/4
ঙ
2/3
৩১.
A sum of money becomes 7/6 of itself in 3 years at a certain rate of simple interest. What is the rate of interest per annum?
ক
(50/9)%
খ
(60/9)%
গ
(70/9)%
ঘ
(55/9)%
ঙ
(51/9)%
ব্যাখ্যা
Let principal = 6y Hence, Amount = 6y × 7/6 = 7y simple interest = 7y - 6y = y If time 3 years, then simple interest, y = 6yr × 3/100 [r = rate of simple interest] or, r = 50/9
৩২.
A train is moving at a speed of 132 km/hr. If the length of the train is 110 meters, how long it will take to cross a railway platform 165 meter long?
ক
7.5 seconds
খ
8.5 seconds
গ
9.5 seconds
ঘ
10.5 seconds
ঙ
11.5 seconds
ব্যাখ্যা
Speed = 132 km/hr = 132 × 5/18 m/s = 110/3 m/s time = distance/speed = (110 + 165)/(110/3) = 7.5 seconds
৩৩.
The speed of a motor-boat is that of the current of water as 36:5. The boat goes along with the current in 5 hours 10 minutes. When will it come back?
ক
5 hours 50 minutes
খ
6 hours 50 minutes
গ
12 hours 10 minutes
ঘ
6 hours 5 minutes
ঙ
10 hours 5 minutes
ব্যাখ্যা
Let the speed of the motor boat = 36x kmph and speed of current = 5x kmph.
The boat goes along with the current in 5 hours 10 minutes = 31/6 hour.
Hence, Distance = 31/6 × (36x + 5x) = 31/6 × 41x
Speed of boat upstream = 36x - 5x = 31x Hence, time taken to come back = 31/6 × 41x / 31x = 41/6 hours = 6 hours 50 minutes
৩৪.
If x, y, z and w are all integers greater than 2, which of the following is the greatest?
ক
x + yz + w
খ
x + y( z + w)
গ
(x + y) ( z + w)
ঘ
(x + y) + z
ঙ
x + (yz + w)
ব্যাখ্যা
If x, y, z and w are all integers greater than 2, then sum of two numbers is multiplied by sum of other two numbers is the greatest in above mentioned option.
Third Generation (1964-1977): This generation was introduced by the development of a small chip consisting of the capacity of the 300 transistors. These Integrated Circuits (IC)s are popularly known as Chips. So it is quite obvious that the size of the computer got further reduced Some of the computers developed during this period were IBM-360, ICL-1900, IBM-370, and VAX-750 Higher-level language such as BASIC (Beginners All-purpose Symbolic Instruction Code) was developed during this period.
৩৭.
Which of the following is not true in problem-solving in artificial intelligence?
ক
Implements heuristic search techniques
খ
Solution steps are not explicit
গ
Knowledge is imprecise
ঘ
It works on or implements repetition mechanism
ঙ
None of the above
ব্যাখ্যা
- Heuristic search is a search technique that seeks to solve a problem by iteratively enhancing the solution using a heuristic function or a cost analysis. - Heuristic search is two types. - Direct Heuristic Search Techniques in AI and - Weak Heuristic Search Techniques in AI - Every AI program has to do the process of searching for the solution steps that are not explicit in nature. - knowledge plays a vital role in intelligence as well as creating artificial intelligence. Hence the incorrect statement is It works on or implements a repetition mechanism.
৩৮.
Mechanism that is used to convert the domain name into IP address is known as _________.
ক
URL
খ
DNS
গ
FTP
ঘ
HTTP
ঙ
None
ব্যাখ্যা
- Mechanism that is used to convert domain name into IP address is known as domain name server. - Steps : User opens web browser, enters the domain name in the address bar. - Request is routed to the DNS which is managed by internet service provider. - DNS resolver converts the domain name into the IP address that user needs. - It returns the value to the web browser. - Web browser sends request for the website to the IP address it got from DNS. - Web server finally returns the webpage of at the given IP address.
৩৯.
Identify the odd one out.
ক
Amazon web service
খ
Microsoft Azure
গ
Google Cloud Platform
ঘ
Twitter Platform
ঙ
None of the above
ব্যাখ্যা
Amazon Web Services (AWS): It is a subsidiary of Amazon providing on-demand cloud computing platforms and APIs to individuals, companies, and governments, on a metered pay-as-you-go basis. Microsoft Azure: It is a cloud computing service created by Microsoft for building, testing, deploying, and managing applications and services through Microsoft-managed data centers. Google Cloud Platform: Google Cloud Platform, offered by Google, is a suite of cloud computing services that runs on the same infrastructure that Google uses internally for its end-user products, such as Google Search, Gmail, file storage, and YouTube. Twitter Platform: It is an American microblogging and social networking service on which users post and interact with messages known as "tweets"
৪০.
What does dots per inch (DPI) measure?
ক
Number of bits
খ
Density of pixels on a computer screen
গ
Density of bits on the disk
ঘ
Density of the graphic file stored on the hard disk
ঙ
None of the above
ব্যাখ্যা
- The correct answer is the Density of pixels on a computer screen. - Dots per Inch (DPI) It is a measure of the resolution of a printed document or digital scan. - It measures how many dots fit into a linear inch. - The higher the dot density, the higher the resolution of the print or scan. - A printer with 600 DPI is a printer that prints 600 x 600 per square inch or 360,000 dots per inch. - Increasing the DPI will make the size of the printed image smaller while decreasing the DPI will make the size of the printed image larger. - Please note that Pixels Per Inch (PPI) refers to the number of pixels contained within one inch of an image displayed on a computer monitor.
৪১.
In MS Word, RTF stands for _______.
ক
Real Time Fonts
খ
Real Time Formatting
গ
Rich Text Format
ঘ
Real Text Files
ঙ
None of the above
ব্যাখ্যা
- The correct answer is Rich Text Format. - The Rich Text Format (often abbreviated RTF) is a proprietary document file format with published specifications developed by Microsoft Corporation from 1987 until 2008 for cross-platform document interchange with Microsoft products. - Most word processors can read RTF documents. - RTF is a file format standardized by Microsoft for creating formatted text files. - RTF files can include information such as text style, size, and colour. - RTF format is a universal format. - The RTF uses the ANSI, PC-8, Macintosh, and IBM PC character sets.
৪২.
The process of copying data from memory location is called -
ক
Writing
খ
Controlling
গ
Booting
ঘ
Reading
ঙ
None of the above
ব্যাখ্যা
Reading: A process that copies data from a memory location of the computer system is termed Reading. Hence, Option 4 is correct. It is an action executed by the computer system. This process helps to acquire data from a source field and then place the data into their volatile memory for further processing. Moreover, it is considered a core function of a computer. Writing: When referring to data or a storage device, writing is taking information and moving it to an alternate location. For example, saving data onto a diskette is the same as writing information to a diskette. Almost all forms of media are writable, which means any information can be written to it. Controlling: A control system manages, commands direct, or regulates the behavior of other devices or systems using control loops. A control system is a type of computer system that manages, commands, and directs other devices or systems. There are open and closed-loop control systems. Booting: In computing, booting is the process of starting a computer. It can be initiated by hardware such as a button press, or by a software command. After it is switched on, a computer's central processing unit (CPU) has no software in its main memory, so some processes must load software into memory before it can be executed.
৪৩.
In MS - Excel, Insert Function are located on the _____.
ক
Vertical scroll bar
খ
Horizontal scroll bar
গ
Formula bar
ঘ
Standard toolbar
ঙ
None of the above
ব্যাখ্যা
- The correct answer is Formula bar. - The Formula Bar is where data or formulas are entered into a worksheet that appears for the active cell. - The Formula Bar can also be used to edit data or formula in the active cell. - The active cell displays the results of its formula while we see the formula itself in the Formula Bar. - The Insert Function dialog box shows what functions are available, what they do, and how to use them.
৪৪.
_____ view is not present in PowerPoint.
ক
Slide sorter
খ
Slide show
গ
Normal
ঘ
Outline
ঙ
None of the above
ব্যাখ্যা
The correct answer is Slide show. - A slide show is a presentation of a series of still images on a projection screen or electronic display device, typically in a prearranged sequence. The changes may be automatic and at regular intervals or they may be manually controlled by a presenter or the viewer. To start a slide show click the Start From Beginning command on the Quick Access Toolbar, or press the F5 key at the top of your keyboard. The presentation will appear in full-screen mode. PowerPoint allows to access the taskbar without ending the presentation. - Slide sorter will give you a view of your slides in thumbnail form it makes for you to sort and organize the sequence of your slide before printing. It not only gives you a review of a presentation as a whole but also lets you rearrange and hide your slides based on your needs. - Outline view in PowerPoint displays your presentation as an outline made up of each slide's titles and main text. Each title appears on the left side of the pane containing the Outline tab and a slide icon and slide number. The main text is indented under the slide title. Graphic objects appear only as small notations on the slide icon in Outline view. - Normal view is the editing mode where you'll work most frequently to create your slides. Below, the Normal view displays slide thumbnails on the left, a large window showing the current slide, and a section below the current slide where you can type your speaker notes for that slide.
৪৫.
Which function key is used for opening help?
ক
F1
খ
F7
গ
F12
ঘ
F9
ঙ
F2
ব্যাখ্যা
F1 function key is used for opening help. A function key is a key on a computer keyboard to perform certain actions. The function keys are arranged on the top of the computer keyboard numbered across from F1 to F12. The keys are frequently used in combination with other keys such as the CTRL key, the ALT key, and the SHIFT key. The function keys provide some interesting shortcuts for common computer functions that can be useful tools in everyday computing.
F2 - To rename a selected file or folder. F3 - To search for a file or folder. F4 - To close the active window with the Alt key F5 - To refresh or reload the current page. F6 - To move the cursor to the address bar in most web browsers. F7 - To spell-check and grammar check F8 - To access the boot menu in Windows F9 - Refresh a document in MS word F10 Activate the menu bar of the application F11 - Enter and exit full screen in web browsers F12 - Open the Save as dialog box in MS word
৪৬.
'The Grand Canyon' is located in which country?
ক
Canada
খ
Bolivia
গ
Brazil
ঘ
The US
ঙ
Russia
ব্যাখ্যা
The correct answer is The US. - The Grand Canyon is an example of a valley that is an erosional landform. Erosion - It is the geological process in which earthen materials such as soil or rock are removed and transported by natural forces such as wind or water.
৪৭.
The hole in the ozone that is created every year over the south pole region has now become larger than Antarctica. This was informed by which of the following?
ক
NASA Earth Observatory
খ
European Union's Copernicus Atmosphere Monitoring Service
গ
Famine Early Warning Systems Network
ঘ
United Nations Framework Convention on Climate Change
ঙ
Convention on Biological Diversity
ব্যাখ্যা
- The hole in the ozone that is created every year over the south pole region has now become larger than Antarctica. - This was informed by scientists from the European Union's Copernicus Atmosphere Monitoring Service. - The layer depletes and forms a hole over the Antarctic in the southern hemisphere's spring, which is from August to October. Additional Information: - In 1987, the Montreal Protocol was signed which led to a ban on a group of chemicals called halocarbons that contain bromine which has high ozone-depleting potential (ODP). - A number of commonly used chemicals like chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs) have been to be extremely damaging to the ozone layer.
৪৮.
Balukhali refugee camp of Bangladesh is located in -
ক
Cox’s Bazar
খ
Khagrachari
গ
Rangamati
ঘ
Bandarban
ঙ
Noakhali
ব্যাখ্যা
- Balukhali refugee camp of Bangladesh is located in Cox’s Bazar -Tumbru Rohingya Camp of Bangladesh is located in Naikkongchhori, Bandarban. - Kutupalong refugee camp is the world's largest refugee camp. - It is in Ukhia, Cox's Bazar.
৪৯.
What is the name of the Dhaka-Jalpaiguri passenger train between Bangladesh and India?
ক
Mitali Express
খ
Bandhon Express
গ
Mukti Express
ঘ
Progoti Express
ঙ
None of the above
ব্যাখ্যা
- ২৭ মার্চ ২০২১ উদ্বোধন করা হয় বাংলাদেশ-ভারতের মধ্যে ঢাকা-জলপাইগুড়ি যাত্রীবাহী ট্রেন - ‘মিতালী এক্সপ্রেস’। - ঢাকা থেকে জলপাইগুড়ির দূরত্ব রেলপথে ৫৯৫ কিলোমিটার। - বাংলাদেশ অংশে পড়েছে ৫২৬ কিলোমিটার। বাকি ৬৯ কিলোমিটার ভারত অংশে। - ট্রেন থেকে আয় ভাগাভাগির প্রস্তাব দেওয়া হয়েছে ভারতকে। - দূরত্ব অনুপাতে ভাড়ার ৮৫ ভাগ বাংলাদেশ এবং বাকি ১৫ ভাগ ভারত পাবে। উৎস: চ্যানেল আই
৫০.
At the G20 Summit, Which of the following with support from the European Union launched the International Methane Emissions Observatory (IMEO), in October 2021?
ক
UNDP
খ
World Bank
গ
ILO
ঘ
UNEP
ঙ
None
ব্যাখ্যা
The correct answer is UNEP. • At the G20 Summit, the UN Environment Programme (UNEP) with support from the European Union launched on October 31, 2021, the International Methane Emissions Observatory (IMEO). • The IMEO will bring global reporting on methane emissions to an entirely different level, ensuring public transparency on anthropogenic methane emissions. Important Points • IMEO will initially focus on methane emissions from the fossil fuel sector and then expand to other major emitting sectors like agriculture and waste. • Methane is a powerful greenhouse gas responsible for at least a quarter of the current global warming.
৫১.
Which activity has been declared a mental disorder by WHO?
ক
Excess use of mobile
খ
Oversleeping
গ
Impaired control over gaming on mobile
ঘ
Overeating
ঙ
None of the above
ব্যাখ্যা
- The correct answer is impaired control over gaming on mobile. - Impaired control over gaming on mobile has been declared as a mental disorder by WHO. - The World Health Organization announced "gaming disorder" as a new mental health condition included in the 11th edition of its International Classification of Diseases. - The ICD is the standard disease coding for statistics and information regarding diseases around the world. - These codes are common for healthcare professionals worldwide and provide a common sharing platform for reporting diseases and conditions.
৫২.
Where is the maximum bio-mass available?
ক
Ocean
খ
Earth
গ
Air
ঘ
Forest
ঙ
None
ব্যাখ্যা
Biomass: It is the total quantity or weight of organisms in a given area or volume. Ocean sustains the maximum biodiversity, hence has the maximum productivity. The percentage of energy that enters an ecosystem in the form of biomass at a particular trophic level is termed as Productivity of the Ecosystem.
৫৩.
Lunar Eclipse occurs only on -
ক
Equinox day
খ
Full moon day
গ
Solstice day
ঘ
New moon day
ঙ
None of the above
ব্যাখ্যা
The correct answer is Full moon day. Lunar Eclipse: A lunar eclipse takes place when the Moon moves into the Earth’s shadow. - The Earth has to be directly between the Sun and the Moon, and a lunar eclipse can only take place during a full Moon. Hence, Option 2 is correct. - First, the Moon moves into the penumbra – the part of the Earth’s shadow where not all of the light from the Sun is blocked out. - Part of the Moon’s disc will look dimmer than a regular full Moon. - And then the Moon moves into the Earth’s umbra, where direct light from the Sun is totally blocked out by the Earth. This means the only light reflecting off the Moon’s disc has already been refracted, or bent, by the Earth’s atmosphere. Total Lunar Eclipse: During this, the whole of the lunar disc enters the Earth’s umbra, so the Moon appears reddish (Blood Moon). - This won’t last forever, though. - After about 14 minutes, the Moon will move out of Earth’s umbra and back into its penumbra. - In total, the lunar eclipse will last a few hours. - Red light has a longer wavelength than blue light, which gives the lunar eclipse its characteristic reddish color - On Earth, we see the same effect during sunrises and sunsets, when the sky has a more reddish glow than during the day.
৫৪.
The Science which deals with the study of bones is known as __________.
ক
Ornithology
খ
Pisciculture
গ
Agrostology
ঘ
Osteology
ঙ
None of the above
ব্যাখ্যা
The various studies of science are as follow: - Osteology: The study of bones - Ornithology: The study of birds - Pisciculture: The breeding and rearing of fishes in artificial tanks or enclosures - Agrostology: the study of Grass
৫৫.
Oxygen is absent in -
ক
Cement
খ
Soil
গ
Kerosene
ঘ
Glass
ঙ
All of the above
ব্যাখ্যা
The correct answer is Kerosene. There is no oxygen in the Kerosene as it gets oxygen from the air. In soil, there is excess of oxygen that is used for breathing by many bacterias and in decomposition. It is dangerous for many anaerobic. In the glass, Oxygen makes ionic bonds to give it proper shape and color.