Indian Navy Agniveer Mock Test - 5 - Indian Navy Agniveer MCQ

The correct answer is 'an action which makes a bad situation worse'.

Key Points

• The idiom "a turn of the screw" means to make a bad situation worse by adding further complications or difficulties to it. It is often used to describe a situation where things are already bad, but someone or something makes it even worse by taking an action that aggravates the situation.
• For example, imagine a company that is struggling financially. The CEO decides to lay off a large number of employees, which causes widespread outrage and negative publicity. This action could be described as "a turn of the screw" because it made an already bad situation worse by adding more problems to the mix.
• Therefore, the most appropriate meaning of "a turn of the screw" is (4) an action which makes a bad situation worse.

The correct answer is - "Although he was tired, he completed the work on time."

Key Points

• From the given options, the most appropriate answer is "Although he was tired, he completed the work on time."
• Option 1 can be eliminated because Question mark is used in it.
• Question mark (?) is used after a direct question.
  • Eg. Where are you going?
• Comma (,) indicate the shortest pause and used -
  • to separate the words spoken by the speaker from the rest of the sentence.
  • to separate words, phrase, or clauses inserted in to the body of a sentence.
  • Eg. Money is, after all, of prime concern.
• Full stop (.) represents the longest pause and used to mark the end of an assertive or an imperative sentence.
  • Eg. I will go to the school.
• in give sentences in the options, a comma (,) will come after 'tired' and full stop (.) will come after 'time'.
• Thus, Option 4 is correct answer.

The correct answer is 'Anathema'.

Key Points

• 'Anathema' is spelled with one 'n’ and one 't’.
• It is a word used to refer to something or someone that one vehemently dislikes.
  • Example Sentence: "Profiles of internet scammers who cheated innocent people were anathema to the ethical hackers."
• The remaining options are incorrectly spelt.

Therefore, the correct answer is 'Option 1'.

The correct answer is 'Bill said that he had missed his train and that he would be late for work.'

Key Points

• The given sentence is in Direct Speech. As per the given question we have to change it into Indirect Speech.
• The process of transformation is as follows:
  • In the given sentence the reporting verb has no object. Hence, 'said' will not be changed.
  • Comma and inverted commas will be removed.
  • The conjunction 'that' will be added.
  • 'I' will be changed into 'he' because the first person pronoun is changed according to the subject of the reporting verb.
  • 'have missed' will be changed into 'had missed'.
  • 'will be' changes into 'would be'.

Correct Sentence: Bill said that he had missed his train and that he would be late for work.

Hinglish

• दिया गया वाक्य डायरेक्ट स्पीच में है। दिए गए प्रश्न के अनुसार हमें इसे इनडायरेक्ट स्पीच में बदलना है।
• परिवर्तन की प्रक्रिया इस प्रकार है:
  • दिए गए वाक्य में reporting verb का कोई object नहीं है। इसलिए, 'said' नहीं बदला जाएगा।
  • अल्पविराम और उल्टे अल्पविराम हटा दिए जाएंगे।
  • Conjunction 'that' जोड़ा जाएगा।
  • 'I' को 'he' में बदल दिया जाएगा क्योंकि reporting verb के subject के अनुसार first person pronoun बदल दिया गया है।
  • 'have missed' को 'had missed' में बदल दिया जाएगा।
  • 'will be' 'would be' में बदल जाएगा।

The correct answer is "out"

Key Points

• Let's look at the meaning of the selected phrasal verb.
• Call out: summon someone to deal with an emergency or provide a service.
• Look at the following example:
  • Patients are to be told to stop calling doctors out unnecessarily at night.

Hence, the correct answer is "The teacher called out the names of the students who won the tournament."

Additional Information

• Let's look at the meaning of the other phrasal verbs.
• Call in: enlist someone's aid or services.
• Call in: summon someone to serve in the armed forces.
  • There is no such word as "call against."

Hinglish

• Meanings in Hindi:
  • Call out: किसी आपात स्थिति से निपटने या सेवा प्रदान करने के लिए किसी को बुलाना।
  • Call in: किसी की सहायता या सेवाओं को सूचीबद्ध करें।
  • Call in: सशस्त्र बलों में सेवा करने के लिए किसी को बुलाना

The correct answer is 'that they were well-to-do farmers'.

Key Points

• Refer to the lines from the passage: Listen daughter, we weren't always like this. It's the floods. It's a pity that we have had to take shelter by the highway and wait for customers day after day! We were respectable people. We had two granaries full of paddy.
  • It is evident from the above lines that they used to be respected people and well-to-do farmers with two granaries full of paddy.
• Thus, the appropriate answer is 'that they were well-to-do farmers'.

Hence, the correct answer is option (2).

The correct answer is 'urging'.

Key Points

• The word 'Prodding' means stimulate or persuade (someone who is reluctant or slow) to do something (किसी ऐसे व्यक्ति को उत्तेजित या राजी करना जो कुछ करने के लिए अनिच्छुक या धीमा हो)
  • Example - They attempted to prod the central bank into cutting interest rates.
• The word 'Urging' means the act of strongly advising or encouraging someone to do a particular thing (किसी को किसी विशेष कार्य को करने के लिए दृढ़ता से सलाह देने या प्रोत्साहित करने की क्रिया)
  • Example - With their dad's urging, the girls started playing football.
• Thus, the word 'prodding' means 'urging'.

Hence, the correct answer is option (3).

Additional Information

• Let's explore the meaning of other words:
  • sermonising: deliver an opinionated and dogmatic talk to someone (किसी से एक राय और हठधर्मिता की बात करें)
    • Example - She's a teacher who can talk to her students about serious subjects without sermonizing.
  • torturing: cause great mental suffering or anxiety to (बड़ी मानसिक पीड़ा या चिंता का कारण)
    • Example - She was tortured by grief.

The correct answer is 'Metaphor'.

Key Points

• Metaphor a figure of speech in which a word or phrase literally denoting one kind of object or idea is used in place of another to suggest a likeness or analogy between them.
  • Example - The camel is the ship of the desert.
• A metaphor is an implied simile. It does not, like the simile state that one thing is like another or acts as another, but takes that for granted and proceeds as if the two things were one.
• The given sentence suggest a likeness between gold and pearls with rice grains.
• Thus, the figure of speech is Metaphor.

Hence, the correct answer is option (4).

Additional Information

• Alliteration: a figure of speech in which the same sound repeats in a group of words.
  • Example - Bob brought the box of bricks to the basement.
• Paradox: a figure of speech in which a statement appears to contradict itself. This type of statement can be described as paradoxical.
  • Example - Save money by spending it.
• Simile: a figure of speech that is mainly used to compare two or more things that possess a similar quality. It uses words such as 'like' or 'as' to make the comparison.
  • Example - As slow as a sloth.

The correct answer is 'Luckily, they did not use the machinery.'

Key Point

• Rules to be followed while converting active voice from passive voice :
• Identify the Subject, Verb, and Object in the passive sentence to convert to active voice.
• Interchange the object and subject with each other i.e. subject of the passive sentence becomes the object in an active sentence.
• The past participle (V3) forms in a passive sentence i.e. preceded by (by, with, to, etc) are changed to the base verb in the active sentence.
• 'Them' will be changed to 'they' as it will become the subject of the active voice.
• Structure:
• Passive Voice - Object + was/were + not + V3 + by + Subject.
• Active Voice - Subject + did/do + not + V1 + Object.
• Following the above-mentioned rules, the right active sentence: Luckily, they did not use the machinery.

The correct answer is “It can’t be!” said Anil indignantly. “I was on duty last light! And the night before!”

Key Points

• Punctuation is used in direct speech to separate spoken words, or dialogue, from the rest of a story.
• The words spoken by a character sit inside speech marks ( " ).
• Speech marks are sometimes known as inverted commas ( ' ) or quotation marks ( " ).
• "It cant be" and "I was on duty last light and the night before" must be inside the inverted comma.

• We must remember to open - and close - the speech marks at the start - and end - of the direct speech:

  • Example: “I think there is something moving in the bushes,” George said.

• ​Each new line of direct speech should also start with a capital letter.

• A reporting clause "said Anil indignantly" after the direct speech tells the reader who is speaking.

• There is usually a full stop after the reporting clause.

• So, we have to add a full stop ( . ) after "said Anil indignantly."

• If there is a reporting clause, there can be an exclamation mark ( ! ) at the end to describe a surprising feeling.

• So, there must be an exclamation mark ( ! ) after the sentence "It can't be."

• ​Therefore, the correct answer is Option 4.
  ​

Correct sentence: “It can’t be!” said Anil indignantly. “I was on duty last light! And the night before!”

Concept:

Archimedes principle:

The principle of Archimedes states “When a body is immersed in a liquid, an upward thrust, equal to the weight of the liquid displaced, acts on it.”

Thus, when a solid is fully immersed in a liquid, it loses weight which is equal to the weight of the liquid it displaces.

Apparent weight = Actual weight - buoyant force = mg - ρgV

Where m is the mass of the object, ρ is the density of the fluid

Hence if there is no gravity, there is no Upward Thrust.

The upward force applied to the object is called the buoyant force.

Here,

ρ = density of liquid

g = acceleration due to gravity

V = volume of liquid displaced by the object

• Archimedes Principle is also known as the physical law of buoyancy.
• The purity of gold in the king's crown, Archimedes determine after discovering the Archimedes principle.
• Hydrometer, Ships and Submarines work on the Archimedes Principle.
• A Ship/boat floats on the basis of the Archimedes Principle.

Calculation:

Given: Density of solid = 2500 kg/m3, mass 0.45 kgf, brine solution of density 1150 kg/m3, g = 10 m/s2.

Volume V of solid , V = Mass / density = 0.45 / 2500 = 1.8 × 10^-4 m³,

Apparent weight in liquid = weight in air - loss of weight in liquid

loss of weight in liquid = immersed volume of solid × density of liquid × g

where g is the acceleration due to gravity

loss of weight in liquid = ( 3/4) V × 1150 = (3/4) × 1.8 × 10-4 × 1150 × g = 0.15525 kgf

Apparent weight in liquid = 0.45 - 0.15525 = 0.29475 kgf

Apparent weight in liquid = 0.29475 kgf

CONCEPT:

• Stress: Stress is the ratio of the load or force to the cross-sectional area of the material to which the load is applied.
  • The standard unit of stress is N/m2.
• Strain: Strain is a measure of the deformation of the material as a result of the force applied.
  • The strain is a unitless quantity.
• Hooke's law states that within the elastic limit the stress applied on a body is directly proportional to strain produced.

⇒ Strain ∝ Stress

⇒ Strain = E × Stress (Where E = modulus of elasticity)

where σ = stress, F = applied force, A = cross-sectional area, dl = change in length, l = initial length and E = young's modulus of elasticity

CALCULATION:

• We know that the change in length of the material by an externally applied force,

Concept:

Equation of parabola along Y-axis:

x² = ± 4ay, Focus (0, ± a)

Solution:

The given equation of a parabola is x² = 6y

On comparing this equation with x² = 4ay, we obtain

4a = 6 ⇒ a =

Therefore, the coordinates of the focus F = (0, a) ⇒

∴ The correct option is (2)

Concept:

Criteria of Maxima

The followings are the criteria for maxima of a function.

(i) The derivative  is + ve just before x = a and – ve just after it.

(ii) The derivative  = 0, just at the point x = a, since it can change its sign from + ve to –ve by passing through zero only.

Criteria of Minima

The followings are the criteria for minima of a function.

(i) The derivative  is - ve just before x = a and + ve just after it.

(ii) The derivative,  is equal to zero just at the point x = 0, since it can change its sign from – ve to + ve by passing through zero only.

Calculation:

f(x) = 2x2 + 3

For maxima or minima

⇒ 4x = 0

⇒ x = 0

The minimum value of this function is at 0 as 0 lies in the interval [-1, 2].

f(-1) = 2(-1)² + 3 = 5

f(2) = 2(2)2 + 3 = 11

f(0) = 2(0)2 + 3 = 3

So, at x = 0, minimum value = 3

and at x = 2, maximum value = 11

∴ Both statements are correct.

Explanation:

Composition of function.

When the function f(x) is substituted in the function g(x), the composite function formed is represented by (g o f)x. It can be termed as “g of f of x".

(g o f)x=g(f(x))

We have f(x) =  and g(x) = x + 2.

Now, f()= =  = 1

∴ (g o f)

= g(f())

= g(1)

= 1+2

= 3

Concept:

A point (h, k) lies inside a closed curve F(x, y) ≡ 0 if F(h , k) < 0

Calculation:

Given ellipse 4x2 + 9y2 - 36 = 0 and the circle x2 + y2 - 9 = 0

Given points A(1, 2) and B(2, 1)

Substitute point A in the equation E, we have

⇒ E = 4 × 1²+ 9 × 2² - 36 = 4, hence point A lies outside the ellipse.

Substitute point A in equation C,

⇒ C = 1² + 2² - 9 = - 4, hence the point A lies inside the circle.

Substitute point B in the equation E,

⇒ E = 4 × 22+ 9 × 12 - 36 = - 11, hence point B lies inside the ellipse.

Substitute point B in equation C,

⇒ C = 22 + 12 - 9 = - 4, hence the point B lies inside the circle.

Hence point A lies inside C but outside E.

The correct answer is option (4).

Concept:

The null set is a subset of every set. (ϕ ⊆ A)

Every set is a subset of itself. (A ⊆ A)

The number of subsets of a set with n elements is 2ⁿ.

The number of proper subsets of a given set is 2n - 1

Calculation:

Statement I: If A = {x: x is an even natural number} and B = {y: y is a natural number}, A subset B.

A = {2, 4, 6, 8, 10, 12, ...} and A = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, ...}.

It is clear that all the elements of set A are included in set B.

So, set A is the subset of set B.

Statement I is correct.

Statement II: Number of subsets for the given set A = {5, 6, 7, 8) is 15.

Given: A = {5, 6, 7, 8}

The number of elements in the set is 4

We know that,

The formula to calculate the number of subsets of a given set is 2ⁿ

= 2⁴ = 16

Number of subsets is 16

Statement II is incorrect.

Statement III: Number of proper subsets for the given set A = {5, 6, 7, 8) is 15.

The formula to calculate the number of proper subsets of a given set is 2ⁿ - 1

= 2⁴ - 1

= 16 - 1 = 15

The number of proper subsets is 15.

Statement III is correct.

∴ Statements I and III are correct.

Given:

sin (C + D) = √3/2

sec (C - D) = 2/√3

Calculations:

If sin (C + D) = √3/2 and sec (C - D) = 2/√3

Then,

⇒ C + D = 60°.............(1)

⇒ C - D = 30°..............(2)

Solving 1 & 2 .

C = 45°

D = 15°

∴ Option 1 is the correct answer.

∴ (n - 1) = 18

⇒ n = 18 + 1 = 19

Hence, option (3) is correct

Concept:

General equation of line :- ax² + 2hxy + by² + 2gx + 2fy + c = 0

Equation represents pair of straight lines:- abc + 2fgh - af² - bg²- ch² = 0

Calculation:

We have,

⇒ hxy + gx + fy + c = 0

On comparing with general equation, we get

⇒ a = 0, h = h/2, b= 0, g = g/2, f = f/2, c = c

⇒ abc + 2fgh - af2 - bg2- ch2 = 0

Putting all the values in the equation, we get

⇒

⇒

⇒ fg - ch = 0

⇒ fg = ch

∴ If the equation hxy + gx + fy + c = 0; h ≠ 0 represents a pair of straight lines, then fg = ch.

CONCEPT:

If a, b and c are the sides of the Δ ABC such that, a + b + c = 2S then

CALCULATION:

Given: For ΔABC we have a = 25, b = 52 and c = 63

Here, we have to find the value of sin (C/2)

As we know that, if a, b and c are the sides of the Δ ABC then 2S = a + b + c

⇒ 2S = 25 + 52 + 63 = 140

⇒ S = 70

As we know that,

Hence, option B is the correct answer.

The correct answer is Ahmedabad.Key Points

• World's largest cricket stadium (Narendra Modi Stadium) is located in Ahmedabad, Gujarat, India.
• The Motera Stadium (Sardar Patel Stadium), the world's largest cricket stadium, was inaugurated by President Ram Nath Kovind, and was renamed the ‘Narendra Modi Stadium’.
• The President also performed ‘Bhoomi Pujan’ (ground breaking ceremony) of the 'Sardar Vallabhbhai Sports Enclave'.
• 1.32 lakh spectators will be able to witness matches at this stadium.
• The stadium has 11 pitches, unrivaled by any stadium in the world.
• It hosted its first-ever pink-ball Test match on 24 February 2021 between India and England.

Additional Information

The correct answer is Allahabad.

Key Points

• Chandrashekhar Azad shoot himself on being besieged by the British police in Allahabad.
• On February 27, 1931, betrayed by one of the associates, he was besieged by the British police in Alfred Park, Allahabad.
• He fought valiantly but seeing no other way he shot himself and fulfilled his resolve to die a 'free man'.

Additional Information

• Chandrashekhar Azad:
  • He was born on 23rd July 1906 in Bhavra village of Madhya Pradesh.
  • He joined the non-cooperation movement at the age of 15.
  • He joined the Hindustan Republican Association after the suspension of the non-cooperation movement.
  • He was associated with the Kakori conspiracy which was the Kakori train robbery conducted by Hindustan Republican Association in 1925.
  • The Hindustan Socialist Republic Association was established by Chandrashekhar Azad and his colleagues in 1928 at Feroz Shah Kotla, New Delhi.
  • He was involved in 1926 attempt to blow the viceroys train and Saunder's shooting in 1928.

The correct answer is M K Gandhi.

Key Points

• The All India Harijan Sevak Sangh is an independent national-level non-profit voluntary Organisation with Branches in 26 States.
• It was founded in September 1932 in the wake of Gandhiji's Epic Fast at Yervada Jail, Pune, resulting in the historic Poona Pact.
• The immediate historical background dates back to the Second Round Table Conference in London in 1931 when Gandhi Ji opposed the segregation of the depressed classes of the Hindu community into a separate electoral group.
• Gandhi Ji saw in it a sinister device of the British government to create a split in the Hindu community in furtherance of its policy of divide and rule.
• The Sangh was established to combat untouchability and a new weekly paper, the Harijan, was started.
• Harijan means children of God, it was Gandhi Ji's name for the untouchables.

Additional Information

The correct answer is Jitendra Singh Shekhawat.

In News

• Mati Ke Lal Babosa Bhairon Singh Shekhawat is written by Jitendra Singh Shekhawat.

Key Points

• Bhairon Singh Shekhawat's 100th birth anniversary was celebrated in Jaipur.
• Book launch: "Mati Ke Lal – Babosa Bhairon Singh Shekhawat" by Jitendra Singh Shekhawat.
• Launch guest: Rajya Sabha Deputy Chairman Ghanshyam Tiwari.
• Venue: Bhairon Singh Auditorium, Rajasthan Chamber of Commerce and Industry.
• Tributes paid by Vice President Jagdeep Dhankhar and Rajasthan Governor Kalraj Mishra.
• The event featured a video depicting Shekhawat's life journey and prominent political figures attended.

The correct answer is Buddhist Monuments at Sanchi.

Key Points

• The stupas, temples, viharas, and stambha at Sanchi in central India are among the oldest and most mature examples of aniconic arts and free-standing architecture.
• They comprehensively document the history of Buddhism from the 3rd century BCE to the 12th century CE.
• The inception of Sanchi as a sacred centre is attributed to the Mauryan emperor Asoka.
• The area was designated a UNESCO World Heritage site in 1989.

Additional Information

• Shanti Stupa is a Buddhist white-domed stupa (chorten) on a hilltop in Chanspa, Leh district, Ladakh.
  • It was built in 1991 by Japanese Buddhist Bhikshu, Gyomyo Nakamura and is part of the Peace Pagoda mission.
• The Mahabodhi Temple is an ancient but rebuilt and restored Buddhist temple in Bodh Gaya, Bihar.
  • It marks the location where the Buddha is said to have attained enlightenment.
  • It became a UNESCO World Heritage Site in June 2002.
• The Amaravati Stupa is a ruined Buddhist monument, probably built in phases between the 3rd century BCE and about 250 CE, at Amaravathi village, Andhra Pradesh, India.
  • Amaravati has been a UNESCO Heritage City since 2014.

The correct answer is Jammu & Kashmir.Key Points

• Baglihar Dam is built on Chenab River in the Doda district of Jammu & Kashmir.
  • It consists of a gravity concrete dam 143 m high and 363 m long, which has a total volume of 1.9 million m³, creating a reservoir with a capacity of 475 million m³.
  • The first power project executed by the Jammu and Kashmir Power Development Corporation.
• Salal dam is built on the Chenab river.​

Additional Information

• Important Dam:

The figure formed from the shapes given in the question figure is given below:

Hence, "option 1" is the correct answer.

The Correct Answer is ​Amit Agrawal.

In News

• Amit Agrawal was appointed UIDAI CEO, and Subodh Kumar Singh was named DG NTA.

Key Points

• Senior IAS officers Amit Agrawal and Subodh Kumar Singh have been appointed as CEO Unique Identification Authority of India and director general of the National Testing Agency.
• Both Agrawal (1993 batch) and Singh (1997 batch) are Indian Administrative Service (IAS) officers of the Chhattisgarh cadre.
• Richa Sharma, additional secretary in the Ministry of Environment, Forest and Climate Change, has been moved to the Department of Food and Public Distribution.
• Rashmi Chowdhary, additional secretary in the Department of Personnel and Training, has been appointed as secretary in the Central Information Commission.