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General Knowledge Mock Test - 9 - CDS MCQ


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30 Questions MCQ Test - General Knowledge Mock Test - 9

General Knowledge Mock Test - 9 for CDS 2024 is part of CDS preparation. The General Knowledge Mock Test - 9 questions and answers have been prepared according to the CDS exam syllabus.The General Knowledge Mock Test - 9 MCQs are made for CDS 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for General Knowledge Mock Test - 9 below.
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General Knowledge Mock Test - 9 - Question 1

Which of the following is a chemical change?

Detailed Solution for General Knowledge Mock Test - 9 - Question 1

An example of a chemical change is (c) Burning of wood. Chemical changes involve the formation or breaking of chemical bonds, resulting in the creation of new substances with different properties. Burning wood involves a combustion reaction that releases energy and transforms the wood into ash, gases, and smoke.

General Knowledge Mock Test - 9 - Question 2

Which element is at the center of the periodic table?

Detailed Solution for General Knowledge Mock Test - 9 - Question 2

Iron, located in the d-block of the periodic table, is roughly at the center.

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General Knowledge Mock Test - 9 - Question 3

Which type of medicines are used for treating indigestion?

Detailed Solution for General Knowledge Mock Test - 9 - Question 3

Antacid:

  • Antacids are medicines that counteract (neutralize) the acid in your stomach to relieve indigestion and heartburn.
  • Antacids may help if you have: 
    • Indigestion
    • Heartburn or acid reflux – also known as gastro-oesophageal reflux disease (GORD)
    • Stomach ulcer
    • Gastritis (inflammation of the stomach lining) 
General Knowledge Mock Test - 9 - Question 4

Shielding effect across the period

Detailed Solution for General Knowledge Mock Test - 9 - Question 4

The shielding effect remains constant across a period in the periodic table. This is because electrons are being added to the same energy level. Even though the number of electrons increases, they are roughly the same distance from the nucleus and do not shield each other effectively from the increasing nuclear charge. Therefore, the shielding effect remains constant.

General Knowledge Mock Test - 9 - Question 5

In 1932 who had discovered neutron?

Detailed Solution for General Knowledge Mock Test - 9 - Question 5

In 1932, James Chadwick, an English physicist, discovered the neutron. He conducted a series of experiments involving the bombardment of beryllium with alpha particles, which led to the discovery of a neutral particle with a mass similar to that of a proton. This discovery provided crucial evidence for the existence of a neutral subatomic particle, the neutron, and contributed significantly to our understanding of atomic structure and nuclear reactions.

General Knowledge Mock Test - 9 - Question 6

What is the substance that is reduced in a redox reaction known as?

Detailed Solution for General Knowledge Mock Test - 9 - Question 6

An oxidizing agent is the substance that is reduced in a redox reaction.

General Knowledge Mock Test - 9 - Question 7

Which metal is commonly used in the manufacture of aircraft and spacecraft due to its lightweight and high strength?

Detailed Solution for General Knowledge Mock Test - 9 - Question 7

Aluminum is commonly used in the aerospace and automotive industries due to its lightweight nature and high strength-to-weight ratio. It helps reduce the overall weight of the structures while maintaining durability.

General Knowledge Mock Test - 9 - Question 8

What is the value of Universal Gravitational Constant (G) in C.G.S unit?

Detailed Solution for General Knowledge Mock Test - 9 - Question 8

The value of the Universal Gravitational Constant (G) in CGS (Centimeter-Gram-Second) units is approximately 6.67 * 10(-8) cm3 g(-1) s(-2).

So, the correct option from the provided choices is C) 6.67 * 10(-8) cgs unit.

General Knowledge Mock Test - 9 - Question 9

Which of the following statements about atmospheric pressure is true?

Detailed Solution for General Knowledge Mock Test - 9 - Question 9

Atmospheric pressure decreases with increasing altitude. This is because the weight of the air above decreases as altitude increases.

General Knowledge Mock Test - 9 - Question 10

Which of the following statement is or are correct about longitudinal mechanical waves?

Detailed Solution for General Knowledge Mock Test - 9 - Question 10

Sound or Audible waves are sensitive to human ear and are generated by the vibrating bodies like tuning fork, vocal cords etc. Infrasonic waves are produced by sources of bigger size such as earth quakes, volcanic eruptions, ocean waves etc. Human ear cannot detect Ultrasonic waves. But dog, cat, bat etc can detect these waves. Bat not only detect but also produce ultrasonic waves.

General Knowledge Mock Test - 9 - Question 11

What is the term used to describe the process by which green plants use sunlight to synthesize food from carbon dioxide and water?

Detailed Solution for General Knowledge Mock Test - 9 - Question 11

Photosynthesis is the term used to describe the process by which green plants use sunlight to synthesize food from carbon dioxide and water. In this process, plants convert light energy into chemical energy in the form of glucose, releasing oxygen as a byproduct. This process is vital for the production of food and the release of oxygen into the atmosphere.

General Knowledge Mock Test - 9 - Question 12

What is the primary source of energy for most ecosystems?

Detailed Solution for General Knowledge Mock Test - 9 - Question 12

Sunlight is the primary source of energy for most ecosystems. Sunlight provides the energy needed for photosynthesis in plants, which forms the basis of the food chain or food web. Producers, such as plants and algae, convert sunlight into chemical energy, and this energy is then transferred to consumers through their consumption of plants or other animals.

General Knowledge Mock Test - 9 - Question 13

The study of the blood circulatory system is called 

Detailed Solution for General Knowledge Mock Test - 9 - Question 13

The study of the blood circulatory system is called Angiology The medical term “angiology” refers to the study of illnesses affecting the lymphatic and circulatory systems, namely arteries, veins, and lymphatic vessels.

General Knowledge Mock Test - 9 - Question 14

Who developed the theory of relativity?

Detailed Solution for General Knowledge Mock Test - 9 - Question 14

Albert Einstein developed the theory of relativity. His groundbreaking work on special relativity (1905) and general relativity (1915) revolutionized our understanding of space, time, and gravity. Einstein's theory of relativity introduced the famous equation E=mc², which relates mass and energy.

General Knowledge Mock Test - 9 - Question 15

Which of the following instruments is used to measure the humidity in the air?

Detailed Solution for General Knowledge Mock Test - 9 - Question 15

The instrument used to measure the humidity in the air is (d) hygrometer. A hygrometer is specifically designed to measure the moisture content or relative humidity in the atmosphere. It is commonly used in meteorology, indoor climate control, and various scientific and industrial applications.

General Knowledge Mock Test - 9 - Question 16

Which gas law states that the pressure of a gas is directly proportional to its absolute temperature?

Detailed Solution for General Knowledge Mock Test - 9 - Question 16

Gay-Lussac's law states that the pressure of a gas is directly proportional to its absolute temperature at constant volume.

General Knowledge Mock Test - 9 - Question 17

The general formula CnH2n+2 represents which type of hydrocarbons?

Detailed Solution for General Knowledge Mock Test - 9 - Question 17

The general formula CnH2n+2 represents alkanes. Alkanes are saturated hydrocarbons with single covalent bonds between carbon atoms.

General Knowledge Mock Test - 9 - Question 18

Which of the following is the best explanation that CO2 is a non-polar molecule

Detailed Solution for General Knowledge Mock Test - 9 - Question 18

CO2 is a non-polar molecule primarily because the dipole moment is zero.
In a molecule, a dipole moment is formed when there is a difference in electronegativity between the atoms. This causes a charge imbalance and creates a dipole (two poles, one positive and one negative). In CO2, the molecule is linear with the oxygen atoms on either side of the carbon atom. While oxygen is more electronegative than carbon, causing each C-O bond to be polar, the linear shape of the molecule ensures that the individual bond dipoles cancel each other out.
Because the molecule is symmetrical, the dipoles on either side of the carbon atom are equal in magnitude but opposite in direction. As a result, the net dipole moment of the entire molecule is zero, making it non-polar.
So, while the linear geometry (option A) and Sp hybridization (option C) contribute to the overall characteristics of CO2, the best explanation for its non-polarity is the zero dipole moment (option B).

General Knowledge Mock Test - 9 - Question 19

Which of the following is an example of a natural ecosystem?

Detailed Solution for General Knowledge Mock Test - 9 - Question 19

 Coral reef is an example of a natural ecosystem. Natural ecosystems are those that occur without significant human intervention and have developed over long periods of time. Coral reefs are diverse marine ecosystems that provide habitats for numerous species and are characterized by the presence of corals, fish, and other marine organisms.

General Knowledge Mock Test - 9 - Question 20

Which of the following is a characteristic of a sustainable ecosystem?

Detailed Solution for General Knowledge Mock Test - 9 - Question 20

Stable population sizes are a characteristic of a sustainable ecosystem. A sustainable ecosystem is one that can persist over time without degrading its natural resources or compromising the well-being of its inhabitants. It is characterized by balanced population sizes, efficient resource use, and the maintenance of biodiversity. High pollution levels, overexploitation of resources, and loss of biodiversity are not consistent with a sustainable ecosystem.

General Knowledge Mock Test - 9 - Question 21

Haemoglobin consists of iron in its cells and it turns red when it combines with ___________.

Detailed Solution for General Knowledge Mock Test - 9 - Question 21

Haemoglobin consists of iron in its cells, and it turns red when it combines with oxygen. Oxygen binds to the iron component of haemoglobin, forming a complex known as oxyhemoglobin. This complex gives oxygenated blood its bright red color. When oxygen is released from haemoglobin, such as in tissues where oxygen is needed, the color of the blood becomes darker, appearing more bluish-red.

General Knowledge Mock Test - 9 - Question 22

Which of the following statements is/are correct?

  1. Viruses lack enzymes necessary for the generation of energy.
  2. Viruses can be cultured in any synthetic medium.
  3. Viruses are transmitted from one organism to another by biological vectors only.

Select the correct answer using the codes given below.

Detailed Solution for General Knowledge Mock Test - 9 - Question 22

Viruses lack enzymes necessary for the generation of energy. This statement is correct. Viruses are obligate intracellular parasites and do not possess the cellular machinery required for generating energy on their own. They rely on host cells to replicate and produce new viral particles.

Viruses can be cultured in any synthetic medium. This statement is incorrect. Viruses require living host cells to replicate and cannot be cultured in synthetic media alone. They can only replicate within suitable host cells.

Viruses are transmitted from one organism to another by biological vectors only. This statement is incorrect. While some viruses are transmitted through biological vectors (e.g., mosquitoes transmitting the dengue virus), not all virus transmissions rely on vectors. Viruses can also spread through direct contact, respiratory droplets, contaminated surfaces, and other means.

So, the correct answer is a) 1 only.

General Knowledge Mock Test - 9 - Question 23
During which phase did the British pursue the "Ring Fence" strategy in India?
Detailed Solution for General Knowledge Mock Test - 9 - Question 23
The "Ring Fence" strategy was pursued by the British during the first stage of their involvement in India, which spanned from 1757 to 1813. This strategy allowed the British to gradually strengthen their influence in specific regions without interfering in other territories.
General Knowledge Mock Test - 9 - Question 24

The Right to Freedom of Religion allows individuals to:

Detailed Solution for General Knowledge Mock Test - 9 - Question 24

The Right to Freedom of Religion (Article 25-28) allows individuals to manage and administer their religious affairs, including the right to establish and maintain religious institutions.

General Knowledge Mock Test - 9 - Question 25
Which amendment provided for the formation of a National Judicial Appointments Commission?
Detailed Solution for General Knowledge Mock Test - 9 - Question 25
The Constitution (Ninety-ninth Amendment) Act, 2015 provided for the formation of a National Judicial Appointments Commission. This amendment aimed to establish a new mechanism for the appointment and transfer of judges in the higher judiciary in India, with the involvement of both the judiciary and the executive.
General Knowledge Mock Test - 9 - Question 26
Which of the following is NOT listed as a basic structure of the Indian Constitution according to the Kesavananda Bharati case?
Detailed Solution for General Knowledge Mock Test - 9 - Question 26
The Kesavananda Bharati case listed several basic structures of the Indian Constitution, including the supremacy of the Constitution, federal character, and secular character. However, "strong executive powers" are not explicitly mentioned as part of the basic structure.
General Knowledge Mock Test - 9 - Question 27
Who can initiate the process of impeaching the President of India?
Detailed Solution for General Knowledge Mock Test - 9 - Question 27
The process of impeaching the President can be initiated by either House of Parliament. The charges must be in the form of a resolution signed by one-fourth of the total strength of the house and must be passed by two-thirds of the total membership of the House.
General Knowledge Mock Test - 9 - Question 28
Who represents India in international affairs and appoints and receives ambassadors?
Detailed Solution for General Knowledge Mock Test - 9 - Question 28
The President of India represents India in international affairs, appoints and receives ambassadors, and makes agreements and treaties with other countries in his name, subject to ratification by Parliament.
General Knowledge Mock Test - 9 - Question 29
In India, the financial year of the Government begins on which date?
Detailed Solution for General Knowledge Mock Test - 9 - Question 29
In India, the financial year of the Government begins on April 1 and ends on March 31. This time frame is used for budgeting and fiscal planning.
General Knowledge Mock Test - 9 - Question 30

In which year was the 74th Amendment Act enacted to strengthen Municipalities in India?

Detailed Solution for General Knowledge Mock Test - 9 - Question 30

The 74th Amendment Act was enacted in 1992 to empower and decentralize the Municipalities in India.

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