Indian Navy SSR Mock Test - 4 - Airforce X Y / Indian Navy SSR MCQ

The correct answer is "beside"

Key Points

• Let's understand the difference between "besides" and "beside".
  • "Beside," without the s, tells us the location of something.
  • Besides, on the other hand, means "in addition," "in addition to," "moreover," or "as well," depending on context.
• Look at the following examples:
  • Your shirt is beside the closet.
  • Besides Anna, who else went to the concert?
• "Beside" shows the location so it will be the right usage here.

The correct answer is 'Although.'

Key Points

• Let us look at the meanings of the options:
  • In case: We use in case to talk about things we should do in order to be prepared for possible future situations. (हम भविष्य की संभावित स्थितियों के लिए तैयार रहने के लिए उन चीजों के बारे में बात करने के लिए in caseउपयोग करते हैं।)
  • Despite (Preposition): used to link two contrasting ideas or show that one fact makes the other fact surprising. (दो विपरीत विचारों को जोड़ने या यह दिखाने के लिए उपयोग किया जाता है कि एक तथ्य दूसरे तथ्य को आश्चर्यजनक बनाता है।)
    • Structure: despite + noun
  • Though (Conjunction): used to say that a thing is surprising, unusual or unexpected in relation to another thing. (यह कहना कि कोई चीज किसी दूसरी चीज के संबंध में आश्चर्यजनक, असामान्य या अप्रत्याशित है।)
    • Structure: though + clause
  • Because (Conjunction): used when we are focusing on the reason. (उपयोग किया जाता है जब हम कारण पर ध्यान केंद्रित कर रहे हैं।)
• Correct sentence: Although this water looks clean, it may be contaminated.

Additional Information

• Although and even though are conjunctions.
• They have the same meaning.
• Even though is a little stronger than although.
• Structure:
  • although + a clause
  • even though + a clause

The most appropriate word for all the given blanks is “Ascendant”
Ascendant- rising in power or influence.
Retention- the continued possession, use, or control of something
Adaptation- the action or process of adapting or being adapted
Directive- an official or authoritative instruction
Isolation- the process or fact of isolating or being isolated

The correct answer is 'urged'.

Key Points

• To "exhort" means to strongly encourage or urge someone to do something.
• In this sentence, the party leader is urging or encouraging his members to start preparing for the formation of their government.
• Therefore, the most appropriate option is "urged".
• The other options do not convey the same meaning as "exhorted".
• For instance, "expected" means something different, as it suggests that the party leader anticipated that his members would start preparing for the formation of their government, but does not necessarily imply that he encouraged them to do so.
• Similarly, "facilitated" means to make something easier or more possible, but it does not capture the sense of urging or encouraging that is present in the sentence.
• Finally, "discouraged" means to dissuade someone from doing something, which is the opposite of what the party leader is doing in this sentence.

The correct answer is option 4) i.e. John said to his friend, "Please help me carry these boxes."

Key Points

• The given sentence is in Indirect Speech. As per the given directions, we have to change it into Direct Speech.
• As we have to transform the given sentence into an imperative sentence, the process of transformation is as follows:
• The preposition 'to' will be removed and comma and inverted commas will be added.
• In the direct speech 'requested' will be changed into 'said to' because reporting verb has an object, 'his friend.'
• The direct speech will begin like 'John said to his friend.'
• Now, let's focus on the reported speech.
• The pronoun 'him' will be changed into 'me.'
• 'those boxes' will be changed into 'these boxes.'
• In indirect speech 'requested' is used therefore, 'please' will be added in direct speech.
• Finally, the result is: John said to his friend, "Please help me carry these boxes."
• ​So, the correct answer is option 4.

Correct Sentence: John said to his friend, "Please help me carry these boxes."

The correct solution is 'haven't'.

Key Points

• Looking at the sentence given in the question, we know that it is a present perfect tense.
• The present perfect tense is an English verb tense used for past actions that are related to or continue into the present and the sentence given in the question is talking about Ron and Sophie's college days relating it to the present day.
• In a simple present tense, the sentence structure is Subject + have/has + past participle (third form of the verb) + rest of the sentence.
• So the sentence becomes Ron and Sophie (Subject)+ haven't(short form of have not)+ visited (past participle)+ their grandmother's home since college days.(the rest of the sentence)
• Hence the correct answer is Option 3.

Concept-

By the laws of motion

S = ut + at²

Calculation-

velocity of body u_x = 600 km/hr and u_y = 0.

Also g = -9.8m/s, h = 1960m

h = u_y t + gt²

⇒ t = = 20s

Horizontal distance AB will be

⇒ S_AB = u_x t + a_xt²

Since, in x horizontal direction a_x = 0. Therefore

⇒ S_AB = (600 × 518)m/s × 20s

⇒ AB = 3333.33m

⇒ AB = 3.33 km

∴ The distance AB is 3.33 km

The correct answer is The density of sodium is slightly more than water.

Key Points

• Sodium is a member of the alkali metal family with lithium and potassium.

• Sodium has a strong metallic lustre and in colour is very analogous to silver.

• It is soft at common temperatures that it may be formed into leaves by the pressure of the fingers.

• Sodium compounds soon tarnish on exposure to the air, though less rapidly than potassium.

• Sodium is instantly oxidized by water, and hydrogen gas is in temporary union with a little sodium being disengaged.

• We get sodium chloride (NaCl) when sodium bonds with chlorine (Cl). It is also used as a salt in fertilizers.

• Sodium is reactive, soft metal with a low melting point and most important of all alkaline metal from the commercial point of view. Sodium reacts rapidly with water, snow, and ice to produce sodium hydroxide.

Additional Information

• Sodium is an alkali metal it has a density of 968kg/m³
• The density of water is 997 kg/m³

The correct answer is Oxalic acid.

Key Points

• An organic acid is an organic compound with acidic properties. They contain one or more carboxylic acid groups, which may be covalently linked in groups such as amides, esters, and peptides.
• The most common organic acids are carboxylic acids, whose acidity is associated with their carboxyl group –COOH.
• Sulfonic acids, containing the group –SO₂OH, are relatively stronger acids.

Additional Information

• Oxalic acid (C₂H₂O₄) is an organic compound.
• It is a white crystalline solid that forms a colorless solution in water.
• Its condensed formula is HOOCCOOH, reflecting its classification as the simplest dicarboxylic acid.
• Its acid strength is much greater than that of acetic acid.

The name that is not associated with the development of the periodic table is Rutherford.

Explanation:

• Prout's: William Prout, an English chemist, proposed the concept that all elements are made up of atoms and that the atomic weight of an element is a whole number multiple of the atomic weight of hydrogen. However, his ideas were not fully accepted and later experiments showed that his concept was not entirely accurate.


• Newlands: John Newlands, an English chemist, proposed the Law of Octaves in 1865. He arranged the known elements in order of increasing atomic weights and noticed that every eighth element had similar properties. Although his classification system was not widely accepted, it was a precursor to the modern periodic table.


• Rutherford: Ernest Rutherford, a New Zealand-born British physicist, is not associated with the development of the periodic table. He is well-known for his contributions to the understanding of the atom's structure, especially for his gold foil experiment which led to the discovery of the atomic nucleus.


• Lothar Meyer: Lothar Meyer, a German chemist, independently published a periodic table in 1869, around the same time as Dmitri Mendeleev. Meyer's table arranged the elements based on their atomic volumes, which is a precursor to the modern periodic table. However, his work did not gain as much recognition as Mendeleev's.

Therefore, the correct answer is C: Rutherford.

Initial velocity ,u= 20 m/s. final velocity = o , g = 10ms⁻² . V = u + gt, 0 = 20+(−10)×t20+(−10)×t, t = 20/10 = 2s. time taken to fall in downward direction = 2s. hence total time taken = 2s +2s = 4s.

Dimensional Formula:

The dimensional formula is a method to express a derived quantity in terms of fundamental quantities whose dimensions are

Let Mass = M, Length = L and Time, = T .

The general dimensional formula for derived quantity is

[M^xL^yT^z]

Note: The power of M, L, T depends on the definition of Physical quantity.

Dimensional and Dimensionless Quantity:

• The physical quantity is known as a dimensional quantity which can be expressed in terms of the power of [MxLyTz]
• The physical Quantity is known as a dimensionless quantity that cannot be expressed In terms of powers of [MxLyTz]
• Ratios of the same type of physical quantities are also dimensionless quantities.

Angular Impulse:

• It is defined as the product of Torque and time.

Angular Impulse = M × t

Where,

M = torque

T = time

• Unit of angular impulse is N ms or

Torque:

• Torque is a twist or turn that tends to produce rotation.
• Torque is defined as the product of force and perpendicular distance from the axis of rotation.

M = P × r

Where,

M = Torque.

P = Applied force.

r = distance from the axis.

[M] = [P] × [r]

[M] = [

[M] = [

[Ang.Impl] = [M1L2T−2]× [T1]

[Angular impulse] = [

[M1 L2 T-1] is dimentionl formula of Angular Impulse.

The correct answer is Compounds of carbon having double bonds or triple bonds between their carbon atoms are called unsaturated compounds.
Key Points

• Compounds of carbon having double bonds or triple bonds between their carbon atoms are called unsaturated compounds.
• The term "unsaturated" means more hydrogen atoms may be added to the hydrocarbon to make it saturated (i.e. consisting of all single bonds).
• The example of the unsaturated compound is alkenes and alkynes, as well as branched chains and aromatic compounds.
• Saturated hydrocarbons have the molecular formula C_nH_2n+2, where n refers to the number of carbon atoms, and can be any natural number.
  • For example ethane

Additional Information

• Alkane - acyclic saturated hydrocarbon.
  • Alkane consists of hydrogen and carbon atoms arranged in a tree structure in which all the carbon-carbon bonds are single.
• Alkene - any hydrocarbon containing one or more double bonds.
  • Alkenes unsaturated compounds
• Alkyne - any hydrocarbon containing one or more triple bonds.
  • Alkenes unsaturated compounds

Concept:

• Measurement of any physical quantity involves comparison with a certain basic, arbitrarily chosen, internationally accepted reference standard called unit and Dimension is a mathematical tool used for studying the nature of physical quantities.
• The basic concept of dimensions is that we can add or subtract only those quantities which have the same dimensions.
• And the dimensional formula is defined as the expression of the physical quantity in terms of mass, length, and time.
• Energy of electromagnetic waves is given by dimension analysis and it is represented by formula E = hv

Explanation:

We know that the energy of an emitted photon is given as E = hν

Where E is the energy of photon and h is plank’s constant and ν if the frequency of an emitted photon

∴ h = E/ν

Hence the dimension of Plank’s constant is given as,

⇒ Dimension of h = [ML2T-1]

Concept:

The Standard Form of a Quadratic Equation is ax² + bx + c = 0

Difference of the root = 

Calculation:

The given equation is x2 - px + q = 0,

Statement I: If difference of the roots of x2 - px + q = 0 is unity, then p2 + 4q2 = (1 + 2q)².

We know that the difference of the root =

1 =

⇒

⇒ p² - 4q = 1

⇒ p2 - 4q + 4q² - 4q² = 1

⇒ p2 + 4q2 = 1 + 2(2)q + (2q)2

⇒ p2 + 4q2 = (1 + 2q)2

Statement I is correct.

Statement II: Roots are equal if p = 4q.

For equal roots, D = 0

(-p)² - 4(1)q = 0

⇒ p² - 4q = 0

⇒ p2 = 4q

Statement II is incorrect.

∴ Only Statement I is correct.

Explanation:

 = sin  ----(∵ sin^-1(−12) = )

= sin [π3+π6]

= sin

= sin

= 1

The value of  is 1.

The correct answer is option (4).

The correct answer is option 1.

Given: lim_{x → 0+}

Calculation:

⇒ lim_{x → 0+}

⇒

We know,

⇒

⇒

⇒

⇒

⇒ 1

Hence, the value of given expression is 1.

Concept Used:-

The following formula of integration of function and its derivative will be used to solve the given problem,

Here f(x) is a function, f'(x) is the derivative of the function and C is constant.

Explanation:-

Given,

⇒ ex dx = f(x) ex + c

It can be written as,

⇒​ex dx = f(x) ex + c

Here, (-1/x²) is the derivative of (1/x). Thus, Integrate the left-hand side using the above-mentioned formula and simplify it further,

⇒ (1/x).ex + c = f(x) ex + c

On comparing both the sides, we get,

⇒ f(x) = 1/x

So, the value of f(x) is 1/x.

The correct answer is option (1).

Given:

x² + y² = π²

y = sin x

Calculation:

We have,

⇒ x² + y² = π² is a circle of radius π and center at the origin.

Required area = Area of the circle (1st quadrant) - ∫0πsinxdx

⇒ Required Area =

⇒ Required Area =

⇒ Required Area =

⇒ Required Area =

⇒ Required Area =  sq. units

∴ The required area is sq. units.

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.

Concept:

A standard form of the ellipse is,

 whose coordinates of the foci is

A standard form of the hyperbola is, 

, whose coordinates of the foci is

Calculation:

Given: 

The correct answer is Badminton.

Key Points

• P.V Sindhu is associated with the sport of Badminton.
• In the Badminton bronze medal match, PV Sindhu defeated He Bing Jiao in straight games to clinch the bronze medal at the Tokyo Games and become the first Indian woman to win two individual Olympic medals.
• After becoming the first Indian female athlete to win a Silver medal at the Olympics in Rio 5 years ago, PV Sindhu has become only the 2nd Indian athlete after Sushil Kumar to win 2 individual medals at the Games.
• PV Sindhu: Achievements
  • PV Sindhu defeated Michelle Li of Canada in the final badminton match of women's singles at the Commonwealth Games 2022 in Birmingham, to win gold on 8 August 2022.
  • In January 2020, PV Sindhu was awarded the Highest Civilian Award in India- Padma Bhushan.
  • In March 2015, Sindhu was awarded the Fourth Highest Civilian Award in India- Padma Shri.
  • In August 2016, she was awarded the Highest Sporting Honour of India- Rajiv Gandhi Khel Ratna.
  • In September 2013, PV Sindhu was awarded the Arjuna Award for outstanding performance in sports. etc.

The correct answer is Kathakali.

Key Points

• Kathakali​
  • The literal meaning of the word Kathakali is Story-Play.
  • Kathakali is based on the epics of Ramayana and Mahabharata.
  • It is a classical dance related to Kerala.
  • In this dance, there are nine facial expressions called Navarasas.

Additional Information

• Kathak:
  • ​The term Kathak is derived from Katha which means Story.
  • The Kathaks were originally a caste of storytellers in the temple of north India, who embellished their performances with gestures and songs.
  • Kathak began evolving into a distinct mode of dance in the fifteenth and sixteenth centuries with the spread of the bhakti movement.
  • The legends of Radha Krishna were enacted in folk plays called Rasa Lila, which combined folk dance with the basic gestures of the Kathak storytellers.
• Manipuri
  • The Manipuri Dance, also referred to as the Manipuri Raas Leela (Meitei: Jagoi Raas, Raas Jagoi), is one of the eight major Indian classical dance forms, originating from the state of Manipur.
  • Lai Haraoba is the earliest form of dance in Manipur, and it forms the basis of all such dances.

The direction for this question is mentioned below-

Hence, 2 Km is correct answer.

The logic followed here is:

Consider A as Plus.

Then,

14 A 13 A 3 = 30

→ 14 + 13 + 3 = 30.

and,

39 A 14 A 3 = 56

→ 39 + 14 + 3 = 56.

Similarly,

28 A 11 A 4 = ?

→ 28 + 11 + 4 = 43.

Hence, the correct answer is "43".

The logic followed here is:-

Hence, "option 3" is the correct answer.

Given: Today is Tuesday.

We know that every 7th day is going to be Tuesday.

No. of odd days = 100 / 7 = 2 (Remainder)

Now if today is Tuesday then after 100 days, the day will be the same as 2 days after today so,

Then, the day after 100 days = The day after 2 days from today = (Tuesday + 2) = Thursday.

Hence, the correct answer is "Option 4".

We living beings need different kinds of nutrients for our survival and the different mechanisms of the body. There is a range of nutrients that are obtained from different sources. Carbohydrates, proteins, fats, vitamins, minerals, and water are the nutrients present in the food. But these nutrients are not present in the same amount in various foods.

Key PointsProtein is the chief component of all body tissues. We obtain proteins mainly from animal foods like milk and milk products, meat, fish, and egg. Pulses and nuts are also good sources of protein.

• Pulses are a rich source of proteins.
• Protein is one such nutrient required for the growth of our body.
• It can be obtained from plants as well as animal sources.

Hence, Pulse is the source of protein. Hint

• Wheat and Rice are rich sources of carbohydrates.
• Orange is a rich source of Vitamin C.

Important Points There are three important functions of proteins.

• For growth and maintenance: Proteins are required for the growth and maintenance of the body tissues. More protein is required by the body during periods of growth if needed to build up new tissues.
• Regulation of body processes: Many body processes are controlled by the presence of proteins in the body. For this, proteins present in the form of enzymes and hormones help to regulate a number of important body processes.
• Proteins as a source of energy: One gram of protein provides four Kcal. But protein foods are expensive sources of energy. As already explained under carbohydrates, it is preferable to use proteins for bodybuilding only, by providing enough carbohydrates and fats in the diet so that proteins are spared