Indian Air Force Agniveer Science & Other than Science Mock Test - 7 - Indian Air Force Agniveer Vayu MCQ

Here, m = 2 × 10⁴kg
Initial acceleration, a = 5ms^-2
Initial thrust = upthrust required to impart acceleration a + upthrust required to overcome gravitational pull
∴ F  = m(a + g) = (2 × 10⁴kg)(5 + 10)ms⁻²
= 3 × 10⁵N

The potential energy of a system increase if work is done by the system against a conservative force.
−ΔU = Wconservative force

• Gravitational force strictly follows Newton’s Third Law of motion i.e. for every action force there is an equal and opposite reaction force.
• Gravitational forces add up like vectors i.e. they obey the principle of superposition.

An isobaric expansion of a gas requires heat transfer to keep the pressure constant. An isochoric process is one in which the volume is held constant, meaning that the work done by the system will be zero.

The internal energy of a system decreases by the same amount as the work done by the system.
 
Change in internal energy=work done+heat exchange
change in internal energy=work done if process has no heat exchange, i.e. it's adiabatic and the temperature must decrease
 

Equivalent capacitance for three capacitors (C₁, C₂ & C₃) in series is given by

⇒ Charge on capacitors (C₁, C₂ & C₃) in series

Charge on capacitor C₄ = C₄V = 4C V

Potentiometer is a long wire of uniform cross section made of manganin.

As charges and velocities are same
F=q(V×B)
So having the same magnitude of charge and same velocity, they'll experience the same magnitude of force.

Explanation : In this case we would be obtaining electrical energy continuously without doing any work.

The correct answer would be option B. Applying a very strong magnetic field.
Applying a very strong magnetic field to a metal we don’t know the electron emission.

There are two types of semiconductors: p-type and n-type. Therefore both holes and electrons conduct current respectively.

sin θ is 3/5.
on simplifying:
(secθ + tanθ)/(secθ - tanθ)
We get, (1+sin θ)/(1-sin θ)
=(1+3/5)/(1-3/5)
=(8/2)
=4

Any normal of x−y plane is along z−axis.
normal unit vector to x−y plane, 
n→ = kˆ= 0iˆ+0jˆ+1kˆ
Direction cosines are <0, 0, 1> or
n→ = k =0iˆ+0jˆ−1kˆ
Direction cosines are <0, 0, −1>

In case of negative or fractional power, expansion (1+x)^n is valid only when |x| < 1
(6 - 3x)^-1/2
= (6^-1/2 (1 - x/2)^-1/2)
So, this equation exists only when |x/2| < 1
|x| < 2

By definition : The Skew lines are lines in different planes which are neither parallel nor intersecting .

lim(h → 0) [sin²(x+h) - sin²x]/h
l = lim(h→0) = [2sin(x+h)cos(x+h)]/1
{As we know that sin2x = 2sinxcosx
= sin2x

A vector whose magnitude (i.e., length) is equal to 1 is called a unit vector. There are exactly two unit vectors in any given direction and one is the negative of the other.

There are 4 aces in a pack. So, the probability of drawing an ace = 4/52 
= 1/13 
and the probability of drawing a card other than ace = 12/13. 
Hence, the probability that ace doesn't appear in first 26 draws = (12/13)²⁶

• Meaning of Quarantine: To separate someone into isolation.
• Meaning of Rescue: save (someone) from a dangerous or difficult situation
• Meaning of Detention: the action of detaining someone or the state of being detained in official custody
• Meaning of Defence: the action of defending from or resisting an attack
• Meaning of Safety: the condition of being protected from or unlikely to cause danger, risk, or injury

This statement is wrong: He couldn't but help

Correct Statement will be: He couldn't help

This sentence is comparative. X does more of A than Y does of B. What is the X? The United States. What is the Y? North Korea. The simplest structure of an English sentence is to start with the subject and the verb. D start in this fashion. A and C are passive. The use of ‘they’ in B is incorrect as it is unclear to what ‘they’ refers. Choice D is the correct answer.

According to the given context of the sentence, it is regarding the fact that the present phase would come with another phase of weak monsoon during which the rains are within the foothills of the Himalayas. It is stated that the present phase would be followed by a weak phase of monsoon during which the rains get confined to the hills. Coming to the given options, we can only choose Option D since it provides us the correct implication of the given sentence in both the cases. Other words are irrelevant in the context of the sentence.

This makes Option D the correct choice among the given options.

Sentence A is about 17th-century Amsterdam, and how it was a common for guilds to commission portraits of themselves "in their uniforms, holding weapons". D, on the other hand, talks of a famous painting by Rembrandt, called The Night Watch. Now, it is clear that Rembrandt's painting is the main focus of the paragraph, as the rest of the sentences relate to the painting. So, D is likely to be the first sentence of the paragraph.

C begins with "its status and...". The pronoun 'its' here refers to the painting. As D is the only sentence with the painting as the subject, C follows immediately after D.

C states that the reason why the painting became critically acclaimed had nothing to do with it being a painting of a civic guard group. Sentence A explains why: it was common for guilds to commission portraits of themselves in 17th-century Amsterdam. So, A follows C.

Finally, B follows A, explaining how Rembrandt transformed a commonplace commission into a masterpiece.

So, DCAB is the right order.

The question is " Arrange the sentences in the correct order "
The order is DCAB

Hence, the answer is DCAB
Choice D is the correct answer.

There are two possible sentences to start the paragraph: A and C. Of these, A, which states that the metric system was created during the French Revolution, is more general. C states the reason behind the creation of the system and makes a reference to 'the old regime'. This makes sense only when C follows A. So, A is the first sentence of the paragraph.

D starts off with 'at this time'. The time referred to here is the time of the French Revolution. The only sentence which talks of the time of the French Revolution is A. So, D follows immediately after A. During the time of the French revolution, the ideology of liberty, equality, fraternity was embraced by scientists as well.

D leads on to C, which explains how scientists with the new ideology tried to create a metric system to liberate the common man from the inconsistent weights and measures of the old regime.

Now, B starts off stating that 'it' was a utopian project. Clearly, the pronoun 'it' here refers to the metric system. The only sentence with the metric system as the subject is C. B adds to C, explaining why the creators of the metric system wanted that a shared system of weights and measures: they thought that it would allow for the free exchange of goods and information. So, B follows C.

So, ADCB is the right order.

The question is " Arrange the sentences in the correct order "
The order is ADCB

Hence, the answer is ADCB
Choice B is the correct answer.

Refer to, “At a meeting with industry bodies on Friday, it has been decided that the BIS will set up a separate ‘divisional council’ for services in a month’s time. Under this, different technical committees will be set up — one for each service. The committees will have various stakeholders such as government officials, experts and industry representatives.”

It is very clear that the BIS will set up a different division for the purpose of standardization drive in the services sector with technical committees being set up to oversee the technical aspects of such sectors. These committees will have various stakeholders such as the government officials, experts and industry people.

Among the given options, only option C describes this framework of implementing the standardization drive of the BIS in the services sector.

Hence, option C is the right choice among the given options.

lexicon (N.) : a list of words on a particular subject or in a language in alphabetical order

glossary (N.) : a list of technical/special words, especially those in a particular text, explaining their meanings

catalogue (N.) : a complete list of items, for example, of things that people can look at/buy

The Vindhya Range is considered as the traditional boundary between North India and South India. It is a complex, discontinuous chain of mountain ridges, hill ranges, and plateau escarpments in west-central India. It runs north of and roughly parallel to the Narmada River in Madhya Pradesh and extends up to Gujarat in the west, and Uttar Pradesh and Bihar in the east.

Edgars Rinkevics has been sworn in as Latvia's first openly gay president and the first openly gay president of an EU member state. This makes him a significant figure in terms of LGBTQ+ representation and progress in Latvia and the European Union. Rinkevics has been a long-time supporter of Ukraine in its conflict with Russia and has vowed to uphold Latvia's support for Ukraine as the newly sworn-in president.

During his inauguration speech as Latvia's president, Edgars Rinkevics vowed to support and uphold the European Union. He emphasized the importance of a strong and effective NATO, a law-based international order, and close cooperation with friends and allies. Rinkevics' commitment to the European Union signifies Latvia's dedication to being an active member of the EU and working towards its goals and values.