BSF Head Constable Ministerial (HCM) Mock Test - 10 - BSF Head Constable MCQ

The correct answer is 'Option A' i.e. 'in'.
Key Points

• The sentence indicates the subject's return home and their desire to be in a particular place (their own bed).
• The correct preposition to indicate being situated or located inside something is "in."
• "Back from my own bed" incorrectly suggests departure rather than return; the intended meaning is being 'inside' or 'in' the bed again.
• Prepositions are used to show direction, location, or time, or to introduce an object. Here, "in" is appropriate as it shows location.

Therefore, the correct answer is- in.
Additional Information

• Option B ('beside'): Means at the side of something. It is incorrect because it suggests proximity rather than being inside.
• Option C ('between'): Implies a position in the middle of two points, objects, or figures. It does not fit the context of being settled or located in bed.
• Option D ('among'): Used to denote a relationship involving more than two parties or entities. It implies being part of a group or surrounded by, which does not apply to the context of being in bed.

The correct answer is option D) i.e. 'New copies of the album have been ordered by Shalu.'
Key Points

• The given sentence is in the active voice. We have to change the sentence into passive form.
• The given sentence is written in 'present perfect tense.'
• The structure of these kinds of sentences is:
  • Active Voice: Subject + have/has + V3 + Object.
  • Passive Voice: Object + have/has + been + V3 + by (preposition) + Subject.
• Let’s see another example:
  • Active voice: I have written this instruction only for visitors.
  • Passive voice: This instruction has been written by me only for visitors.
• The subject of the given sentence is 'Shalu' and the object of the given sentence is 'new copies of the album.'
• So, in the passive voice, the position of ‘subject’ and ‘object’ will be interchanged.
• Also here, 'has ordered' will be changed into 'have been ordered'.

Correct Sentence: New copies of the album have been ordered by Shalu.

The correct answer is 'Option A'.

Key Points

• The correct order creates a coherent and logical flow of information.
• Q) "Use the data to get a better understanding of health-promoting compounds of interest" provides the purpose or objective of the team's plan.
• R) "Employ biotechnological approaches" follows as the next step, indicating the method or strategy the team intends to use.
• S) "That could speed up flowering and fruit production in apple trees" provides the specific outcome or result that the team aims to achieve.
• P) Finally, "flowering and fruit production in apple trees" specifies the target area or focus of the team's efforts.
• Therefore, the correct answer is: 'QRSP'.

The correct answer is 'CBAD'.
Key Points

• Sentence C comes first as it is independent of any other sentence. It tells that a girl named Meghna was swept away in the floods along with many other people.
• Sentence B follows C as it begins with the pronoun 'she' that refers to Meghna, and states that she kept floating in the sea for two days after she was swept away.
• Sentence A follows B as it tells that when Meghna was floating in the sea, she saw relief helicopters overhead eleven times, but they did not see her.
• Sentence D follows A as it states that Meghna was finally brought to the shore by a wave.
• Thus, the sequence becomes:
  • ​C: Thirteen-year-old Meghna was swept away along with her parents and seventy-seven other people.
  • B: She spent two days floating in the sea, holding on to a wooden door.
  • A: Eleven times, she saw relief helicopters overhead, but they did not see her.
  • D: She was brought to the shore by a wave and was found walking on the seashore in a daze.

Important Points​

• Important Rules to Solve the Para Jumbles:
• Read the sentences attentively and try to comprehend the idea or theme of the paragraph and eliminate the irrelevant options.
• Try to identify the opening (independent sentence) and closing sentences of the paragraph (concluding sentence).
• Try to identify the mandatory pairs. Two sentences can be connected through various connectors and other determinants. Identify the pronouns connecting the sentences with one other.

The correct answer is 'no use for this'.
Key Points

• The given sentence talks about a book which is singular.
• Therefore, option B and C get eliminated as 'these' has been used in these options.
• The phrase 'have no use for' is used "to say that you do not want or need someone or something because they could never be helpful to you".
  • E.g. Take this book. I have no use for this now.
• According to the rule and example that are given above, 'no use of this' will be used in the underlined part of the sentence.

Correct Sentence: I have no use of this book.

The correct answer is 'A plan to improve water quality, reduce carbon emissions, and protect vulnerable species'.
Key Points

• The passage explains in the first paragraph that the Great Barrier Reef is one of the most significant natural wonders in the world.
• It is a unique ecosystem that supports a diverse range of marine life, including many rare and endangered species.
• The reef also plays an important role in regulating the climate by absorbing carbon dioxide from the atmosphere and releasing oxygen.
• Let's have a look at the first and second sentences of the third paragraph:
  • Efforts to protect the Great Barrier Reef are ongoing. The Australian government has implemented measures such as the Reef 2050 Plan, which aims to improve water quality, reduce carbon emissions, and protect vulnerable species.​
• Thus, the correct answer is Option B.

Correct Answer: A plan to improve water quality, reduce carbon emissions, and protect vulnerable species.

The logic followed here is:
For, MAGIC : CIGAM

For, FOUND : DNUOF

Similarly, for PRICE : ?

Hence, the correct answer is "Option A".

According to the given Venn diagram:

The shaded area shows the "man who is urban as well as government employee".

So, man who is urban as well as government employee = 6.

Hence, the correct answer is "6".

Here, the following logic is used,
The central figure moves 90 degree in clockwise direction and the alphabets also moves in the clockwise direction by in substituting to the very next alphabet of the English alphabets.

Hence, the correct answer is option(B).

The logic follows here is:

Hence, the correct answer is "SL".

The position of the English alphabet series is given below:

Hence, the correct answer is "OQP".

Formula Used:

Time = Distance / Speed

Speed of boat in still water = (Downstream speed + Upstream speed)/2

Calculation:

Let the speed in Upstream = u and Downstream = d.

⇒ 4/u + 6/d = 1..............equation(1)

⇒ 72/u + 48/d = 13 .............equation(2)

Multiply the first equation with 18.

⇒ 72/u + 108/d = 18..............equation(3)

using 1 and 3.

The value of d = 12 km/hr.

Substitute 12 in Equation 1.

⇒ 4/u + 6/d = 1

⇒ 4/u + 6/12 = 1

⇒ 4/u = 1/2

⇒ u = 8 km/hr

Speed of boat in still water = (Downstream speed + Upstream speed)/2

⇒ Speed of boat in still water = (12 + 8)/2 = 10 km/hr

∴ The speed of the boat in still water is 10 km/h.

Calculation:
The combined filling rate of A and B is:
⇒ 1/6 + 1/9
To find a common denominator, calculate:
⇒ 3/18 + 2/18 = 5/18,
This means that together, Pipes A and B can fill 5/18 of the tank per hour.
To fill the remaining five-sixths of the tank, calculate the time required:
⇒ 5/6 ÷ 5/18 = 5/6 x 18/5 = 3 hours.
∴ Pipes A and B will take 3 hours to fill the remaining five-sixths of the tank.

Given:

The two successive discounts = 15% and 10%

The single discount = 25%

Formula used:

D = MP - SP Where, D = The discount, MP = The marked price, and SP = The selling price

Calculation:

Let us assume the marked price be X

⇒ The selling price total discount after two successive discounts =  X x0.85 x 0.765 x

⇒ The selling price after one discount 25% = 0.75X

⇒ According to the question

⇒ 0.765X - 0.75X = 30

⇒ 0.015X = 30

⇒ The marked price X =  30/0.015 = 2000

∴ The required result will be 2000.

Given:

Bag with red and blue marbles.

After removing 1 red marble, the ratio of red marbles to blue marbles = 1 : 3

After removing 2 blue marbles, the ratio of red marbles to blue marbles = 3 : 4

Calculation:

Let, no. of red marbles = R, and no. of blue marbles = B

According to the question,

(R - 1)/B = 1/3

⇒ 3(R - 1) = B

⇒ 3R - 3 = B ---(1)

R/(B - 2) = 3/4

⇒ 4R = 3(B - 2)

⇒ 4R = 3B - 6 ---(2)

Substitute the value of B in equation (2),

⇒ 4R = 3 × (3R - 3) - 6

⇒ 4R = 9R - 9 - 6

⇒ 9R - 4R = 15

⇒ 5R = 15

⇒ R = 15/5 = 3

So, B = 3 × 3 - 3 = 6

∴ There are 6 Blue Marbles in the bag.

Given:

Time is taken by train to cross a pole = 9 sec

Speed of the train = 48 km/hr

Concept:

km/h × 5/18 = m/sec

Formula Used:

Distance = Speed × Time

Calculation:

Let the length of the train be L

Distance = Speed × Time

⇒ L = (48 km/hr) × (9)

⇒ L = 48 × (5/18) × 9

⇒ Length of the train = 120 m

∴ The length of the train is 120 m.

Given:

Number of sides in polygon = 6

One of its angles = (30°+ each of the other five equal angles)

Formula used:

Sum of angles of a polygon = (n – 2) × 180°

Calculation:

Let the equal angles are x and the larger angle be x + 30

Sum of angles = 5x + x + 30 = 6x + 30

We know that,

Sum of angles of polygon = (n – 2) × 180°

⇒ 6x + 30 = (6 – 2) × 180° [∵ n = 6]

⇒ 6x + 30 = 720°

⇒ 6x = 690°

∴ x = 115°

Given:

• Production of wheat in 2005-06: 4800 quintals

• Production of wheat in 2006-07: 5040 quintals

Concept:

Percentage increase is calculated as:

Percentage Increase = [(New Value - Old Value) / Old Value] × 100

Calculation:

We have,

⇒ Old Value = 4800

⇒ New Value = 5040

⇒ Increase = New Value - Old Value

⇒ Increase = 5040 - 4800 = 240

⇒ Percentage Increase = (240 / 4800) × 100

⇒ Percentage Increase = 0.05 × 100

⇒ Percentage Increase = 5%

∴ The correct answer is option A.

The logic followed here is:

So, 'CA5' will replace the question marks from the given series.
Hence, the correct answer is "Option B".

Given: Seven sisters, Anita, Babita, Sunita, Dixita, Rita, Lalita and Geeta are standing in a row facing north.

1) Lalita is standing to the immediate right of Rita who stands fourth to the right of Geeta.

Case 1:

Case 2:

2) Dixita stands at the middle position.

Case 1:

Case 2:

3) Only Sunita stands exactly between Babita and Dixita.

(Here case 2 is eliminated because this condition is not applied here)

Clearly, Anita sits at the rightmost position.

Hence, the correct answer is "Anita".

The correct answer is 'No error'
Key Points

• According to grammar, the sentence does not have any errors.
• Let's see the sentence grammatically-
  • First of all this sentence is a conditional sentence opening with the conjunction 'unless' in this clause, we need to use present tense and in the main clause we need to use future tense.
  • Also, we need to use 'the first' as with the 'second, third, etc' we usually use the definite article 'the' with it.

So the correct answer is Option A.
Mistake Points

• You will get confused with 'not' and 'unless'. We cannot use 'not' in the subordinate clause when the 'unless' the subordinate conjunction is used. In the given sentence the subordinate clause is 'Unless you prepare well' hence in this clause we can't use 'not' but we can use 'not' in the main clause.

The correct answer is Mattinee.
Key Points

• In the given question 'Mattinee' is an incorrectly spelled word.
• its correct spelling is Matinee.
• It means 'a performance or plays which shows in the afternoon' [दोपहर का खेल, दोपहर का नाटक ]​
  • ​Example: I saw a student matinee of Raw with the first cast.​

Hence, the answer is option A.
Additional Information

Let's look at the meaning and example of other words.

• Rendezvous: To meet, a place where people often meet (मिलन स्‍थल)
  • Example: The school is a popular rendezvous for students.
• Adolescent: a child between the ages of 12 to 18 or a teenager.
  • Example: immature behaviour is an example of an adolescent.
• Questionnaire: A list of questions
  • Example: A questionnaire is an important tool for research.

The correct order as per the dictionary is:

2 cult

3 cultivate

1 culture

5 cumin

4 cupid

Hence, the correct answer is " 2, 3, 1, 5, 4 ".

Logic: The first word and the second word both convey the same situation.
Here,
Alas : Woe → Alas and Woe both convey a sense of sorrow.
Similarly,
Beauty : Charm → Beauty and charm both convey a sense of attractiveness and appeal.
Hence, the correct answer is "Option D".

The given series is:
3, 3, 8, 15, 22, 27
The logic follows here is:

The corrected series will be

Hence, the correct answer is 3, 8.

The correct answer is option D.
Key Points
Explanation of Statements

• Statement (i): "An assembler is a program for converting instructions written in a high-level language into relocatable machine code, and generating information for the loader."
  • This statement is incorrect because an assembler converts instructions written in an assembly language, not a high-level language, into machine code.
  • Assemblers translate low-level assembly language into machine code that the computer's CPU can execute directly.
  • Hence, statement (i) is incorrect.
• Statement (ii): "The assembler must remain in main memory during the execution of the assembly code."
  • This statement is correct because the assembler is typically loaded into memory to translate assembly language code into machine code.
  • Once the translation is complete, the machine code can be executed by the CPU.
  • Hence, statement (ii) is correct.
• Statement (iii): "Different types of assemblers include One pass assemblers and load-and-go assemblers."
  • This statement is correct as there are indeed various types of assemblers, including one-pass assemblers and load-and-go assemblers.
  • One-pass assemblers process the source code in a single pass, whereas load-and-go assemblers generate the machine code and load it directly into memory for immediate execution.
  • Hence, statement (iii) is correct.

Additional Information

• Assemblers:
  • An assembler is a type of computer program that translates assembly language into machine code.
  • Assemblers are used to create executable programs from human-readable assembly language source code.
  • They play a crucial role in the software development process by providing a bridge between high-level programming languages and machine code.
• Types of Assemblers:
  • One-Pass Assembler: Assembles the code in a single pass, meaning it reads and processes each line of the source code only once.
  • Load-and-Go Assembler: Generates machine code and loads it directly into memory for immediate execution, often used in real-time systems.
• High-Level vs. Assembly Language:
  • High-Level Language: Examples include C, C++, Java, and Python. These languages are closer to human languages and abstract away hardware-specific details.
  • Assembly Language: A low-level programming language that is closely related to machine code, providing direct control over hardware.
• Memory Management:
  • Assemblers and other system software must be loaded into memory to perform their functions, which involves translating code or managing hardware resources.
  • Effective memory management is critical for the efficient execution of programs and overall system performance.

The correct answer is option A.
Key Points

• Unwanted or unlawful email messages are referred to as spam.
• Spam emails are usually sent in bulk to a large number of recipients, without their permission.
• Spam emails can contain various types of content, such as advertisements, scams, malware, or phishing attempts.
• Spam emails can be harmful to the recipient's privacy, security, and productivity.

Additional Information

• Anti-virus:
  • It is a software designed to protect a computer or network from malware and other threats.
  • Anti-virus software can detect and remove viruses, spyware, adware, and other malicious software.
  • However, Anti-virus software cannot prevent or stop spam emails from reaching the recipient's inbox.
• Smishing:
  • Smishing is a type of phishing attack that uses SMS text messages instead of email.
  • Smishing messages usually contain a link or phone number that the recipient is encouraged to click or call, which can lead to fraud or malware infection.
  • Smishing can be prevented by being cautious of unexpected or suspicious text messages, and by not clicking on links or calling numbers from unknown sources.
• Rootkit:
  • A rootkit is a type of malware that is designed to hide its presence and activities from the user and the anti-virus software.
  • Rootkits can be used to gain unauthorized access to a computer or network, steal data, or perform other malicious activities.
  • However, rootkits are not directly related to spam emails, and can be detected and removed by specialized anti-malware tools.

The correct option is (3)

Written once. read many times

Key Points

• WORM (Write Once, Read Multiple) discs include Compact Disc Recordable (CD-R) discs.
• These CDs can only store data once before it permanently resides there. A second recording onto the disc is not possible. Then, it can be read like a typical CD-ROM.
• Data or music is typically stored on a CD-R (Compact Disc-Recordable). Storage Size: At the moment, the industry norms for CDs are 74 minutes/650 MB, 80 minutes/700 MB (12 cm), and 21 minutes/185 MB (8 cm).

Additional Information

• A CD or DVD A read-only disc is a read-only memory (CD-ROM). Commercially produced discs of this type cannot be used to store data once they have been generated.
• CD-R and CD-RW are the two different types of writeable CDs. With CD-R discs, you can only write to them once, but you can read from them repeatedly.
• You can write to CD-RW discs numerous times and read content from them an infinite number of times.

The correct answer is a Bunch of wires.

Key Points

• In the context of computers, a bus is a set of wires that allows different components inside a computer to communicate with each other.
• It's like a highway that carries data signals between various parts of the system.

Additional Information

• Networking device: While some buses can be used for networking purposes (like connecting computers together), a bus itself is not a networking device.
• Another name for Motherboard: The motherboard is the main circuit board that connects all the components of a computer.
• Internal Memory: Internal memory can refer to both RAM and ROM, which are types of memory chips that store data.

The correct answer is Option B : i, ii, and iii
Key Points

• Under 'Privacy settings' in Windows 10, the available options include:
• i) Location ii) Camera iii) Microphone
• 'Updates' and 'Background apps' are not available under 'Privacy settings'; it is found under 'Update & Security' settings.