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SSC CGL Previous Year Questions: General Science - 14 - SSC CGL MCQ


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30 Questions MCQ Test SSC CGL Previous Year Papers - SSC CGL Previous Year Questions: General Science - 14

SSC CGL Previous Year Questions: General Science - 14 for SSC CGL 2024 is part of SSC CGL Previous Year Papers preparation. The SSC CGL Previous Year Questions: General Science - 14 questions and answers have been prepared according to the SSC CGL exam syllabus.The SSC CGL Previous Year Questions: General Science - 14 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 - 14 below.
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SSC CGL Previous Year Questions: General Science - 14 - Question 1

A cellulosic wall is found in the cells of     (SSC CHSL 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 14 - Question 1

A cellulosic wall is found in the cells of plants.Cellulose is an important structural component of the primary cell wall of green plants, many forms of algae and the oomycetes. Some species of bacteria secrete it to form biofilms. Cellulose is the most abundant organic polymer on Earth.

SSC CGL Previous Year Questions: General Science - 14 - Question 2

The filtration unit of kidney is      (SSC CHSL 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 14 - Question 2

The filtration unit of kidney is known as nephron. Kidneys filter the nitrogenous waste products of the body through nephron and throw them out in the form of urine. Kidneys and skin are the chief organs of excretion.

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SSC CGL Previous Year Questions: General Science - 14 - Question 3

The nutritive tissue in the seeds of higher plants is known as     (SSC CHSL 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 14 - Question 3

The nutritive tissue in the seeds of higher plants is known as endosperm. Endosperm is the tissue produced inside the seeds of most flowering plants around the time of fertilization. It surrounds the embryo and provides nutrition in the form of starch, though it can also contain oils and protein.

SSC CGL Previous Year Questions: General Science - 14 - Question 4

Yeast is an important source of    (SSC CHSL 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 14 - Question 4

Yeast is an important source of vitamin B. Yeasts are eukaryotic microorganisms classified in the kingdom Fungi, with 1,500 species (estimated to be 1% of all fungal species). Yeasts are unicellular, although some species with yeast forms may become multicellular through the formation of strings of connected budding cells known as pseudohyphae, or false hyphae, as seen in most molds.

SSC CGL Previous Year Questions: General Science - 14 - Question 5

Enzymes are    (SSC CHSL 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 14 - Question 5

Enzymes are proteins. Enzymes are large biological molecules responsible for the thousands of metabolic processes that sustain life. They are highly selective catalysts, greatly accelerating both the rate and specificity of metabolic reactions, from the digestion of food to the synthesis of DNA. Most enzymes are proteins, although some catalytic RNA molecules have been identified

SSC CGL Previous Year Questions: General Science - 14 - Question 6

Heating of an ore below its melting point in the absence of air is known as     (SSC CHSL 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 14 - Question 6

Heating of ore below its melting point in the absence of air is known as calcinations. Calcinations is a thermal treatment process in presence of air or oxygen applied to ores and other solid materials to bring about a thermal decomposition, phase transition, or removal of a volatile fraction

SSC CGL Previous Year Questions: General Science - 14 - Question 7

The most electronegative element among the following is     (SSC CHSL 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 14 - Question 7

The most electronegative element among the following is fluorine. Fluorine is a chemical element with symbol F and atomic number 9. It is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. As the most electronegative element, it is extremely reactive: almost all other elements, including some noble gases, form compounds with fluorine.

SSC CGL Previous Year Questions: General Science - 14 - Question 8

Mark the compound which possesses ionic, covalent and co-ordinate bonds.    (SSC CHSL 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 14 - Question 8

NH4Cl is the compound which possesses ionic, covalent and coordinate bonds. Ammonium chloride, an inorganic compound with the formula NH4Cl, is a white crystalline salt, highly soluble in water. Solutions of ammonium chloride are mildly acidic. Sal ammoniac is a name of the natural, mineralogical form of ammonium chloride

SSC CGL Previous Year Questions: General Science - 14 - Question 9

The depletion of Ozone layer is mainly due to     (SSC CHSL 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 14 - Question 9

The depletion of Ozone layer is mainly due to chlorofluorocarbons. A chlorofluorocarbon is an organic compound that contains only carbon, chlorine, and fluorine, produced as a volatile derivative of methane, ethane, and propane. They are also commonly known by the DuPont brand name Freons.

SSC CGL Previous Year Questions: General Science - 14 - Question 10

Match correctly the infectious agents given in List I with the diseases caused by them given in List II :    (SSC CHSL 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 14 - Question 10

Bacterium is associated with tuberculosis, Fungus with ringworm, Protozoan with kala-azar and virus with influenza.

SSC CGL Previous Year Questions: General Science - 14 - Question 11

Matter waves are        (SSC CHSL 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 14 - Question 11

Matter waves are de Broglie waves. In quantum mechanics, the concept of matter waves or de Broglie waves reflects the wave-particle duality of matter. The theory was proposed by Louis de Broglie in 1924 in his PhD thesis. The de Broglie relations show that the wavelength is inversely proportional to the momentum of a particle and is also called de Broglie wavelength.

SSC CGL Previous Year Questions: General Science - 14 - Question 12

When the milk is churned vigorously the cream from it is separated out due to        (SSC CHSL 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 14 - Question 12

When the milk is churned vigorously, the cream is separated out due to centrifugal force. Centrifugal force is the apparent force that draws a rotating body away from the center of rotation. It is caused by the inertia of the body as the body's path is continually redirected.

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

Gas thermometers are more sensitive than the liquid thermometers because the gases        (SSC CHSL 2013)

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

Gas thermometers are more sensitive than liquid thermometers because the gases have large coefficient of expansion. Coefficient of Thermal expansion is the tendency of matter to change in volume in response to a change in temperature, through heat transfer. When a substance is heated, its particles begin moving more and thus usually maintain a greater average separation.

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

Which of the following is not caused by atmospheric refraction of light ?        (SSC CHSL 2013)

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

Sun appearing red at sunset is not caused by atmospheric refraction of light. Refraction is essentially a surface phenomenon. During sunrise and sunset, the rays have to travel a larger part of the atmosphere because they are very close to the horizon. Therefore, light other than red is mostly scattered away. Most of the red light, which is the least scattered, enters our eyes. Hence, the sun and the sky appear red.

SSC CGL Previous Year Questions: General Science - 14 - Question 15

Which one out of the following helps in burning       (SSC Multitasking 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 14 - Question 15

Highly concentrated sources of oxygen promote rapid combustion. Fire and explosion hazards exist when concentrated oxidants and fuels are brought into close proximity; however, an ignition event, such as heat or a spark, is needed to trigger combustion. Oxygen itself is not the fuel, but the oxidant.

SSC CGL Previous Year Questions: General Science - 14 - Question 16

In organic compounds, nitrogen is estimated by      (SSC Multitasking 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 14 - Question 16

The Dumas method in analytical chemistry is a method for the quantitative determination of nitrogen in chemical substances based on a method first described by Jean-Baptiste Dumas in 1826.

SSC CGL Previous Year Questions: General Science - 14 - Question 17

Master copy of genetic information is       (SSC Multitasking 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 14 - Question 17

Deoxyribonucleic acid (DNA) is a molecule that encodes the genetic instructions used in the development and functioning of all known living organisms and many viruses. DNA is a nucleic acid; alongside proteins and carbohydrates, nucleic acids compose the three major macromolecules essential for all known forms of life.

SSC CGL Previous Year Questions: General Science - 14 - Question 18

Contraceptive pills in the market contain      (SSC Multitasking 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 14 - Question 18

Steroids estrogen and progestin (synthetic progesterone) are used in contrucptive pills. Steroid hormones help control metabolism, inflammation, immune functions, salt and water balance, development of sexual characteristics, and the ability to withstand illness and injury

SSC CGL Previous Year Questions: General Science - 14 - Question 19

Nematocysts are present in        (SSC Multitasking 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 14 - Question 19

Nematocyst is minute, elongated, or spherical capsule produced exclusively by members of the phylum Cnidaria (e.g., jellyfish, corals, sea anemones). Several such capsules occur on the body surface. Each is produced by a special cell called a cnidoblast and contains a coiled, hollow, usually barbed thread, which quickly turns outward (i.e., is everted) from the capsule upon proper stimulation. The purpose of the thread, which often contains poison, is to ward off enemies or to capture prey.

SSC CGL Previous Year Questions: General Science - 14 - Question 20

Which of the following micro-organisms is used in milk curdling?        (SSC Multitasking 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 14 - Question 20

Lactobacillus, also called Döderlein's bacillus, is a genus of Gram-positive facultative anaerobic or microaerophilic rod-shaped bacteria.

SSC CGL Previous Year Questions: General Science - 14 - Question 21

Which of the following is present in Chlorophyll molecule?        (SSC Multitasking 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 14 - Question 21

Chlorophyll is a green pigment found in cyanobacteria and the chloroplasts of algae and plants. Its name is derived from the Greek words chloros (“green”) and phyllon (“leaf ”). Chlorophyll is an extremely important biomolecule, critical in photosynthesis, which allows plants to absorb energy from light. It contains magnesium.

SSC CGL Previous Year Questions: General Science - 14 - Question 22

When a body falls from an aeroplane, there is increase in its         (SSC Multitasking 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 14 - Question 22

In physics, the kinetic energy of an object is the energy which it possesses due to its motion. It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity. Having gained this energy during its acceleration, the body maintains this kinetic energy unless its speed changes.

SSC CGL Previous Year Questions: General Science - 14 - Question 23

What does ‘Ozone Layer’ absorb?           (SSC Multitasking 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 14 - Question 23

The ozone layer is a layer in Earth's atmosphere that absorbs most of the Sun's UV radiation. It contains relatively high concentrations of ozone (O3), although it is still very small with regard to ordinary oxygen, and is less than ten parts per million, the average ozone concentration in Earth's atmosphere being only about 0.6 parts per million. The ozone layer is mainly found in the lower portion of the stratosphere from approximately 20 to 30 kilometres (12 to 19 mi) above Earth, though the thickness varies seasonally and geographically

SSC CGL Previous Year Questions: General Science - 14 - Question 24

In a water lifting electric pump, we convert              (SSC Multitasking 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 14 - Question 24

Airlift pumps are often used in deep dirty wells where sand would quickly abrade mechanical parts. (The compressor is on the surface and no mechanical parts are needed in the well). However airlift wells must be much deeper than the water table to allow for submergence. Air is generally pumped at least as deep under the water as the water is to be lifted. (If the water table is 50 ft below, the air should be pumped 100 feet deep).

SSC CGL Previous Year Questions: General Science - 14 - Question 25

The type of mirror used in automobiles to see the traffic on the rear side is              (SSC Multitasking 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 14 - Question 25

The passenger-side mirror on a car is typically a convex mirror. In some countries, these are labeled with the safety warning “Objects in mirror are closer than they appear”, to warn the driver of the convex mirror's distorting effects on distance perception. Convex mirrors are preferred in vehicles because they give an upright, though diminished, image. Also they provide a wider field of view as they are curved outwards.

SSC CGL Previous Year Questions: General Science - 14 - Question 26

The hottest part of the gas flame is known as              (SSC Multitasking 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 14 - Question 26

Blue zone is the hottest part of gas flame.

SSC CGL Previous Year Questions: General Science - 14 - Question 27

Which of the following radiations has the least wavelength?              (SSC Multitasking 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 14 - Question 27

Gamma radiation, also known as gamma rays, refers to electromagnetic radiation of extremely high frequency and therefore high energy per photon. Gamma rays are ionizing radiation, and are thus biologically hazardous.

SSC CGL Previous Year Questions: General Science - 14 - Question 28

The earth is a              (SSC Multitasking 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 14 - Question 28

Ozone layer shields earth from UV radiation - Ionosphere layer allows radio waves to be bounced off and radios to work.

SSC CGL Previous Year Questions: General Science - 14 - Question 29

BCG vaccination is given at the age of      (SSC Multitasking 2013)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 14 - Question 29

Bacillus Calmette-Guérin is a vaccine against tuberculosis that is prepared from a strain of the attenuated live bovine tuberculosis bacillus, Mycobacterium bovis, that has lost its virulence in humans. BCG is given to new-borns.

SSC CGL Previous Year Questions: General Science - 14 - Question 30

Which of the following atmospheric gases constitute greenhouse gases?              (SSC Multitasking 2013)

  1. Carbon dioxide
  2. Nitrogen
  3. Nitrous oxide
  4. Water vapour 

Select the correct answer using the codes given below.

Detailed Solution for SSC CGL Previous Year Questions: General Science - 14 - Question 30

Greenhouse gases (sometimes abbreviated GHG) in the atmosphere absorbs and emits radiation within the thermal infrared range. This process is the fundamental cause of the greenhouse effect. The primary greenhouse gases in the Earth's atmosphere are water vapour, carbon dioxide, methane, nitrous oxide, and ozone.

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