Delhi Police Head Constable Mock Test - 7 - Delhi Police Constable MCQ

• ‘Magnaporthe oryzae’ is a fungus that causes ‘wheat blast’. It is currently destroying wheat crops in South America, threatening its food security in a major scale.
• Scientists have warned that the fungus Magnaporthe oryzae could spread worldwide. Cases of infection have earlier been reported in Asia in 2016 and Africa in 2018.

Option 1 is correct, i.e. Nagaland.

Key Points

• The Ao tribe of Nagaland has one such special festival, known as the Moatsu festival. 
• This festival is celebrated after seeds have been sown in the fields.
• Men and women of the tribe gather around large outdoor fires and performing traditional dances.

Additional Information

Some important festivals of Northeastern states are:

The correct answer is Sikkim.

Key Points

• Sikkim has a population of 6.11 Lakhs.
• The Sikkim census of 2011 says the population of Sikkim is the least in all of India.
• Prem Singh Tamang, better known as P. S. Golay, is an Indian politician and the current Chief Minister of Sikkim and leader and founder of the Sikkim Krantikari Morcha (SKM).
• Governor of Sikkim: Lakshman Prasad Acharya (Dec 2023).

Additional Information

• According to a 2011 census, in that year Mizoram's population was 1,091,014.
  • It is the 2nd least populous state in the country.
  • Lal Thanhawla is an Indian politician who is the Chief Minister of Mizoram.
• As per details from Census 2011, Tripura has a population of 36.74 Lakhs.
  • Chief Minister: Manik Saha
  • Governor: Indrasena Reddy (As of 2023)
• According to the 2011 Census of India, Uttarakhand has a population of 10,086,292.

Important Points

The highest population as per the 2011 census is observed in UP.

The correct answer is Washington D. C.

Key Points

• International Monetary Fund headquarters is located at Washington D. C in the United States. It was founded in 1944.
• International Monetary Fund is an Organization of 190 countries.
• It is working to secure financial stability, facilitate international trade, promote high employment and economic growth and reduce poverty around the world.

Important Points

• The IMF was founded in July 1944 at the United Nations Bretton Woods Conference in New Hampshire, United States.
•  Kristalina Ivanova Georgieva is a Bulgarian economist serving as chair and managing director of the International Monetary Fund since 2019.

Additional Information

• Bal Gangadhar Tilak, commonly known as Lokamanya Tilak was a leader of the Indian independence movement and belonged to the extremist faction.
• He was also called the ‘Father of Indian Unrest’.
• Tilak joined Congress in 1890.
• He was opposed to moderate ways and views and had a more radical and aggressive stance against British rule.
• He was one of the first advocates of Swaraj or self-rule. He gave the slogan, “Swaraj is my birthright and I shall have it.”
• With his electrifying slogan, “Swaraj is my birthright and I shall have it”  Lokmanya Bal Gangadhar Tilak  stirred the Indian people and breathed new life into our struggle for freedom.
•  He believed that no progress was possible without self-rule.
• He was part of the extremist faction of the INC and was a proponent of boycotts and Swadeshi movements.
• He published two papers – Kesari in Marathi and Mahratta in English and was fearless in his criticism of the government in these papers.

 Additional Information

 Famous Slogans by Indian Freedom Fighters:

12 + 19 + 23 + 7 + x + 9 + 26 + 13 = 16 × 8
109 + x = 128
x = 128 – 109 = 19
Hence, Option D is correct.

Let the number = x

Suppose required number is x Then,

The ratio of 1 hour to 300 seconds is:

• To compare time, we should convert both times to the same unit. Let's convert 1 hour to seconds (since 1 hour = 3600 seconds).
• 1 hour = 1 × 3600 seconds = 3600 seconds
• Now we have 3600 seconds to 300 seconds. The ratio is  3600 : 300.
• To simplify, divide both by their greatest common divisor, which is 300.
• 
• So, the ratio is 12 : 1, which corresponds to option (b).

The pattern followed is, 

Logic: For all the other option sum of place value is 14 except “DJA”

Hence, “DJA” is the correct answer.

Given:

Five years ago, father's age was 5 times that of his son

After 3 years father will be 3 times as old as his son

Calculation:

Let the present age of son be x years 

Present age of father be y years 

According to the question,

Five years ago, father's age was 5 times that of his son

(y - 5) = 5 (x - 5)

⇒ y - 5 = 5x - 25 

⇒ y - 5x + 20 = 0     ---- (i)

After 3 years father will be 3 times as old as his son

(y + 3) = 3(x + 3)

⇒ y + 3 = 3x + 9

⇒ y - 3x - 6 = 0      ---- (ii)

Solving equation (i) and (ii) we get,

x = 13

∴ Present age of son is 13 years

From the given information,

His (man) brother's father is the only son of my (woman) grandfather. Thus the family tree is given below,

  

Hence, the woman is the sister of the man.

Given:

Distance travelled by the object in 4 sec = 24 m

Distance travelled by the object in 2 sec = 15 m

Formula used:

Distance = Speed × time

Average speed = Total distance/Total time

Calculation:

Total distance travelled by the object = 24 + 15 = 39 m

Total time taken = 4 + 2 = 6 sec

Average speed = 39/6 

⇒ 6.5 m/s

∴ The average speed of the object is 6.5 m/s.

∴ STOLL → $2@33
Hence, option B is correct.

Thus, the code for REMAIN is 8@7$%6.
Hence, option D is correct.

Logic: Synonymous Relationship.

Here,
Dawn : Sunrise → Dawn and Sunrise are synonymous because they both refer to the early morning time when the sun begins to rise.

Similarly,
Easy : Simple → Easy and Simple are synonymous because they both refer to something that is not difficult.

As Train is guided by the track similarly Bullet is guided by the barrel.

From the common explanation, we get the position of O is 3rd to the left of M.

Hence, Option B is correct.

Final Arrangement:

Common Explanation:

References:

J sits fourth to the right of O and N sits second to the left of J.

Only H sits between J and G.

Inferences:

From the above references, we get

References:

Only D sits between G and C

G is not an immediate neighbour of J but fifth to the right of I.

M, who sits exactly in the middle, is second to the right of I.

Five persons sit between L and J.

Inferences:

From the above references, we get

References:

E is not an immediate neighbour of N.

Inferences:

From the above reference, we get the final arrangement:

Use structure “subject + auxiliary + past participle + by + object”
As per the given above sentence is given in Active Voice.
I was hurt deeply by his comment.
Thus , required answer will be option A .

Obdurate means obstinate or stubborn, hence compliant is the antonym.

Tenacious means determined and comes from tenacity. The word is not related to tenuous. Vacillating (Indecisive) is an antonym.

Analysis:

• Blank No. 33 is asking for a word that means to determine or identify something.

Options:

• Calculate: This word means to determine or ascertain something by mathematical or logical methods. It is not directly related to identifying what birds can be found in a specific habitat.


• Prophesy: This word means to predict or foretell future events. It is not appropriate in the context of identifying birds in a specific habitat.


• Suggest: This word means to propose or put forward as a possibility. While it is related to identifying birds in a habitat, it does not convey the certainty implied in the sentence.


• Predict: This word means to foretell or forecast what will happen in the future. It is the most appropriate word to use in the context of identifying what birds can be found in a specific habitat.


• None of these: This option is not applicable as "Predict" is the most suitable word among the given options.

Conclusion:

The most appropriate word for Blank No. 33 is Predict as it accurately conveys the idea of determining or identifying what birds can be found in a specific habitat.

Explanation:

• Understanding the context: The sentence is talking about how some birds are found all over the world, while others limit themselves to certain areas.


• Analysis of options: Looking at the options, "must" fits the context best as it implies a stronger sense of certainty compared to the other options.


• Reasoning: The sentence is discussing the behavior of birds in certain areas, and using "must" suggests a high likelihood or necessity of finding certain birds in those areas.


• Conclusion: Therefore, the most appropriate word for Blank No. 34 is must.

Explanation:

• Understanding the context: The sentence is talking about birds being found all over the world and some birds restricting themselves to certain areas. It indicates that not all birds are found everywhere.


• Exploring the options:
  
  
  
  • A: All - This option implies that all birds are found everywhere, which contradicts the context of the sentence.
  
  
  • B: Most - While most birds may be found in various habitats, it does not account for the specific habitats mentioned in the sentence.
  
  
  • C: Some - This option correctly reflects the idea that only some birds are found in specific areas, aligning with the context.
  
  
  • D: More - This option does not provide a suitable replacement in the context of the sentence.
  
  
  • E: None of these - This option is not relevant as option C fits the context.
  
  
  
  


• Conclusion: The most appropriate word for Blank No. 35 is "Some" as it accurately represents that only a portion of birds are found in specific areas.

Let’s look at the meanings of the given words:
A. irony- a state of affairs or an event that seems deliberately contrary to what one expects and is often wryly amusing as a result.
B. solidarity- unity or agreement of feeling or action, especially among individuals with a common interest; mutual support within a group.
C. enervate- make (someone) feel drained of energy or vitality.
D. sheer- nothing other than; unmitigated (used for emphasis).
E. embrace- accept (a belief, theory, or change) willingly and enthusiastically.
F. patriarchy- a system of society or government in which men hold the power and women are largely excluded from it.
Given the context, the only words that can fit the blanks are respectively irony, embrace and patriarchy.
So, the correct order of the fitting words is: irony, embrace and patriarchy.
Therefore, the correct answer is option 3.

Let us first learn the meanings of the given words:

Evolve (verb): develop over successive generations as a result of natural selection.

Mutate (verb): undergo or cause to undergo change in a gene or genes.

Recast (verb): present or organize in a different form or style.

Convert (verb): change the form, character, or function of something.

Grammatically singular subject ‘flu’ will take only a singular verb, thus ‘evolved’, ‘recast’ and ‘change’ can be easily eliminated. Now between ‘mutates’ and ‘converts’, ‘mutates’ is a better contextual fit.

Hence, option C is correct.

MPEG standard was developed by Moving Pictures Expert Group.

Explanation:
In real-time operating systems (RTOS), the response time is very critical. Here is a detailed explanation:
Real-time Operating System (RTOS):
- An operating system designed for systems that require precise and predictable response times.
- It is used in applications such as industrial control systems, aerospace systems, medical devices, etc.
Response Time:
- The time it takes for a system to respond to a request or event.
- In real-time operating systems, the response time needs to be very fast and predictable.
Importance of Response Time:
- In certain applications, such as control systems or critical medical devices, even a small delay in response time can have serious consequences.
- Real-time operating systems are designed to ensure that the response time is as fast and predictable as possible.
Comparison with other Operating Systems:
- Multitasking Operating System: In multitasking operating systems, response time is important, but not as critical as in real-time operating systems. These operating systems prioritize multiple tasks and allocate resources accordingly.
- Batch Operating System: In batch operating systems, response time is not critical as the system processes a batch of tasks without any user interaction.
- Online Operating System: In online operating systems, response time is important, but not as critical as in real-time operating systems. These operating systems prioritize online user interactions but may not guarantee precise response times.
Conclusion:
- In real-time operating systems, the response time is very critical due to the nature of applications that require precise and predictable response times.
- Real-time operating systems are designed to prioritize and optimize response times to ensure fast and predictable system behavior.

States of a Five-State Process Model:


The five-state process model is a common model used in operating systems to represent the different states a process can be in. The states include:
1. Running: This state represents the process that is currently being executed by the CPU.
2. Ready: This state represents the process that is waiting to be assigned to a CPU for execution. It is in main memory and is eligible for execution.
3. New: This state represents the newly created process that has not yet been admitted to the pool of executable processes.
4. Exit: This state represents the process that has finished execution and has been terminated.
5. Destroy: This state represents the process that has been removed from the system and its resources have been deallocated.
Answer:


Based on the given options, the correct answer is C: i, ii, iii, and iv only. The states included in this answer are Running, Ready, New, and Exit. The Destroy state is not included in the answer.
Note: Option C provides the correct states of the five-state process model.