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SSC CGL Previous Year Questions: General Science - 13 - SSC CGL MCQ


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30 Questions MCQ Test SSC CGL Previous Year Papers - SSC CGL Previous Year Questions: General Science - 13

SSC CGL Previous Year Questions: General Science - 13 for SSC CGL 2024 is part of SSC CGL Previous Year Papers preparation. The SSC CGL Previous Year Questions: General Science - 13 questions and answers have been prepared according to the SSC CGL exam syllabus.The SSC CGL Previous Year Questions: General Science - 13 MCQs are made for SSC CGL 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for SSC CGL Previous Year Questions: General Science - 13 below.
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SSC CGL Previous Year Questions: General Science - 13 - Question 1

The human body’s largest blood vessel is    (SSC CGL 1st Sit. 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 13 - Question 1

The aorta is the largest artery in the human body, originating from the left ventricle of the heart and extending down to the abdomen, where it bifurcates into two smaller arteries (the common iliac arteries). The aorta distributes oxygenated blood to all parts of the body through the systemic circulation.

SSC CGL Previous Year Questions: General Science - 13 - Question 2

In human body, which one of the following hormones regulates blood calcium and phosphate ?     (SSC CGL 1st Sit. 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 13 - Question 2

Parathyroid hormone (PTH), parathormone or parathyrin, is secreted by the chief cells of the parathyroid glands as a polypeptide containing 84 amino acids. It acts to increase the concentration of calcium (Ca2+) in the blood, whereas calcitonin (a hormone produced by the parafollicular cells (C cells) of the thyroid gland) acts to decrease calcium concentration. 

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SSC CGL Previous Year Questions: General Science - 13 - Question 3

How do most insects respire ?     (SSC CGL 1st Sit. 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 13 - Question 3

Insects, and some other invertebrates, exchange oxygen and carbon dioxide between their tissues and the air by a system of air-filled tubes called tracheae

SSC CGL Previous Year Questions: General Science - 13 - Question 4

In nuclear reactions, there is conservation of    (SSC CGL 1st Sit. 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 13 - Question 4

In a nuclear reaction, the total (relativistic) energy is conserved. The "missing" rest mass must therefore reappear as kinetic energy released in the reaction; its source is the nuclear binding energy.

SSC CGL Previous Year Questions: General Science - 13 - Question 5

When a particle and an antiparticle come in contact with each other, they      (SSC CGL 1st Sit. 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 13 - Question 5

Annihilation is the process that occurs when a subatomic particle collides with its respective antiparticle to produce other particles, such as an electron colliding with a positron to produce two photons.

SSC CGL Previous Year Questions: General Science - 13 - Question 6

Photoelectric effect is     (SSC CGL 1st Sit. 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 13 - Question 6

In the photoelectric effect, electrons are emitted from solids, liquids or gases when they absorb energy from light. Electrons emitted in this manner may be called photoelectrons. 

SSC CGL Previous Year Questions: General Science - 13 - Question 7

For a particle moving with a constant speed along a straight line PQ, the hodograph is      (SSC CGL 1st Sit. 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 13 - Question 7

A hodograph of a particle moving with constant velocity is a point, and the corresponding trajectory is a straight line. 

SSC CGL Previous Year Questions: General Science - 13 - Question 8

Aluminium is obtained by the electrolysis of pure Al2O3 dissolved in     (SSC CGL 1st Sit. 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 13 - Question 8

Aluminium oxide has a very high melting point (over 2,000°C), so it would be expensive to melt it. Instead, it is dissolved in molten cryolite, an aluminium compound with a lower melting point than aluminium oxide. The use of cryolite reduces some of the energy costs involved in extracting aluminium.

SSC CGL Previous Year Questions: General Science - 13 - Question 9

Complete hydrolysis of cellulose gives (SSC CGL 1st Sit. 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 13 - Question 9

Glucose (C6H12O6, also known as D-glucose, dextrose, or grape sugar) is a simple monosaccharide found in plants. It is one of the three dietary monosaccharides, along with fructose and galactose, that are absorbed directly into the bloodstream during digestion. 

SSC CGL Previous Year Questions: General Science - 13 - Question 10

Each body segment of Earthworm is called    (SSC CGL 1st Sit. 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 13 - Question 10

Any of the homologous segments, lying in a longitudinal series, that compose the body of certain animals, such as earthworms and lobsters. Also called somite.

SSC CGL Previous Year Questions: General Science - 13 - Question 11

The pollutants which move downward with percolating ground water are called     (SSC CGL 1st Sit. 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 13 - Question 11

Leachate is the term for pollutants and other liquid wastes that is formed from liquids present in the waste and from external water. It percolates and contaminates ground water.

SSC CGL Previous Year Questions: General Science - 13 - Question 12

Lungs are located in the      (SSC CGL 1st Sit. 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 13 - Question 12

Each lung is enclosed within a cavity known as the pleural cavity . The pleural cavity is the space between the visceral and parietal layers of lungs.

SSC CGL Previous Year Questions: General Science - 13 - Question 13

Which one of the following is the ideal food for newborn babies?      (SSC CGL 1st Sit. 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 13 - Question 13

Mother’s milk is the ideal food for the newborn. Mother’s mik is loaded with various nutrients like Vitamins, minerals, enzymes, growth factors, proteins, antibodies etc. 

SSC CGL Previous Year Questions: General Science - 13 - Question 14

Transcription means the synthesis of     (SSC CGL 1st Sit. 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 13 - Question 14

Transcription is the process in which a particular segment of DNA is copied into RNA by the enzyme RNA polymerase. During transcription, a DNA sequence is read by an RNA polymerase, which produces a complementary, anti-parallel RNA strand called a primary transcript.

SSC CGL Previous Year Questions: General Science - 13 - Question 15

Hydrochloric acid is secreted by the cells lining the    (SSC CGL 1st Sit. 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 13 - Question 15

Hydrochloric acid is secreted by the parietal cells present in the the stomach. The acidic pH helps in digestion of food by providing optimal pH for pepsin and gastric lipases. 

SSC CGL Previous Year Questions: General Science - 13 - Question 16

Emulsification is     (SSC CGL 1st Sit. 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 13 - Question 16

Emulsification is the process of breaking down of fat into small globules. Bile salts helps in emulsification inside the GI tract. Emulsification provides a larger surface for pancreatic lipase for digestion of fats into fatty acids and glycerol. 

SSC CGL Previous Year Questions: General Science - 13 - Question 17

Taxonomy is a science that deals with     (SSC CGL 1st Sit. 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 13 - Question 17

Taxonomy is the branch of science that deals with the classification of organisms. 

SSC CGL Previous Year Questions: General Science - 13 - Question 18

Which of the following is responsible for the working of Newton's colour disc experiment?     (SSC CGL 1st Sit. 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 13 - Question 18

The Newton’s disc consists of red, orange, yellow, green, blue, indigo and violet colours that appear white when it spins at high speed. The appearance is due to the concept of persistence of vision, which states that the human visual perception cannot distinguish details of high-speed movements.

SSC CGL Previous Year Questions: General Science - 13 - Question 19

The dimension MLT–2 corresponds to   (SSC CGL 1st Sit. 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 13 - Question 19

Force = Mass x Acceleration=MLT–2 

SSC CGL Previous Year Questions: General Science - 13 - Question 20

Who is the founder of quantum theory of radiation?     (SSC CGL 1st Sit. 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 13 - Question 20

In 1900, the German physicist Max Planck introduced the idea that energy is quantized in order to derive a formula for the observed frequency dependence of the energy emitted by a black body, called Planck's law, that included a Boltzmann distribution. 

SSC CGL Previous Year Questions: General Science - 13 - Question 21

Fiber optics cable used in communication, works on the principle of      (SSC CGL 1st Sit. 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 13 - Question 21

A fiber optic consists of glass threads, each of which is arranged in bundles called optical cables. It is used to transmit light signals over long distances due to repeated bouncing of light off the walls due to total internal reflection of light.

SSC CGL Previous Year Questions: General Science - 13 - Question 22

The outer skin most of the crustaceans are made up of a carbohydrate. This carbohydrate is     (SSC CGL 1st Sit. 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 13 - Question 22

Chitin is a hard, tough substance that occurs widely in nature, particularly in the shells (exoskeletons) of arthropods such as crabs, insects and spiders. The walls of hyphae are composed of slightly different chitin. Chemically chitin is a polysaccharide, derived from glucose.

SSC CGL Previous Year Questions: General Science - 13 - Question 23

Rutherford's scattering experiment proved the presence of     (SSC CGL 1st Sit. 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 13 - Question 23

Rutherford scattering experiment concluded that alpha particles are deflected back by a positive charge concentrated in the centre of atom. Hence, the incident alpha particles very close to this positive mass (later called as nucleus) in the centre of the atom gets deflected, while if it passes through at a fair distance from this mass, then it would simply pass through.

SSC CGL Previous Year Questions: General Science - 13 - Question 24

When a metal is heated in a flame, the electrons absorb energy and jump to higher energy state. On coming back to the lower energy state, they emit light, which we can observe in     (SSC CGL 1st Sit. 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 13 - Question 24

An atom in the excited state is not stable and hence when it returns back to the ground state, it releases the energy in the form of light that it had previously gained and thus emission spectra is observed. 

SSC CGL Previous Year Questions: General Science - 13 - Question 25

Blood pressure may be increased by the excessive secretion of     (SSC CGL 1st Sit. 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 13 - Question 25

Excessive secretion of thyroxine can cause an excessively high metabolic rate, which results in hypermetabolic state. It can result into an increased heart rate and elevated blood pressure. 

SSC CGL Previous Year Questions: General Science - 13 - Question 26

The Concept of 'Green House Gases" was postulated by     (SSC CGL 1st Sit. 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 13 - Question 26

The concept of Greenhouse gases (GHGs) was postulated by Joseph Fourier. It was earlier in the 20th century that the scientists started exploring the relationship behind glacial periods of ice age and atmospheric CO2

SSC CGL Previous Year Questions: General Science - 13 - Question 27

"Bhopal gas tragedy" 1984 is related to     (SSC CGL 1st Sit. 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 13 - Question 27

In December 1984, at least 30 tons of Methyl isocyanate gas was leaked from the Union Carbide pesticide factory in Bhopal. It is one of the major industrial disasters of the world killing over 15000 people and affected more than 600,000 workers and inhabitants over the years. 

SSC CGL Previous Year Questions: General Science - 13 - Question 28

The Particulate Matter (PM–10) exhaled from the polluted atmosphere is often filtered out during the process of     (SSC CGL 1st Sit. 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 13 - Question 28

Particulate matter ( PM10) which is defined as the fraction of particles with an aerodynamic diameter smaller than 10 μm is filtered out by the process of sneezing and coughing. 

SSC CGL Previous Year Questions: General Science - 13 - Question 29

The animal who can consume more salt among the following is      (SSC CGL 1st Sit. 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 13 - Question 29

Recently scientists in China sequenced the DNA of the wild bactrian camel, to study camel's salt tolerance. Camels consume eight times more salt than cattle or sheep and have twice the blood glucose levels of other ruminants. 

SSC CGL Previous Year Questions: General Science - 13 - Question 30

What is a neuron ?    (SSC CHSL 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 13 - Question 30

The basic unit of nervous system is known as neuron. The nervous system consists of nerves, brain and spinal cord. They control the working of various organs of the body. The part of brain and spinal cord is called the Autonomic Nervous System.

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