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SSC CGL Previous Year Questions: General Science - 9 - SSC CGL MCQ


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30 Questions MCQ Test SSC CGL Previous Year Papers - SSC CGL Previous Year Questions: General Science - 9

SSC CGL Previous Year Questions: General Science - 9 for SSC CGL 2024 is part of SSC CGL Previous Year Papers preparation. The SSC CGL Previous Year Questions: General Science - 9 questions and answers have been prepared according to the SSC CGL exam syllabus.The SSC CGL Previous Year Questions: General Science - 9 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 - 9 below.
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SSC CGL Previous Year Questions: General Science - 9 - Question 1

Brass contains     (SSC CGL 2014)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 9 - Question 1

Brass is an alloy made of copper and zinc; the proportions of zinc and copper can be varied to create a range of brasses with varying properties.

SSC CGL Previous Year Questions: General Science - 9 - Question 2

Which is the purest commercial form of iron?    (SSC CGL 2014)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 9 - Question 2

Wrought iron is an iron alloy with a very low carbon content, in comparison to steel, and has fibrous inclusions, known as slag. This is what gives it a "grain" texture resembling wood, which is visible when it is etched or bent to the point of failure. Wrought iron is tough, malleable, ductile and easily welded.

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SSC CGL Previous Year Questions: General Science - 9 - Question 3

In galvanization, iron is coated with      (SSC CGL 2014)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 9 - Question 3

Galvanization, or galvanisation, is the process of applying a protective zinc coating to steel or iron, to prevent rusting. The most common method is hot-dip galvanization, in which parts are submerged in a bath of molten zinc.

SSC CGL Previous Year Questions: General Science - 9 - Question 4

Which one of the following is also known as solution?    (SSC CGL 2014)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 9 - Question 4

A homogeneous mixture is a type of mixture in which the composition is uniform and every part of the solution has the same properties. A homogeneous mixture in which there is both a solute and solvent present is known as solution.

SSC CGL Previous Year Questions: General Science - 9 - Question 5

The cells which are closely associated and interacting with guard cells are (SSC CGL 2014)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 9 - Question 5

The plant epidermis consists of three main cell types: pavement cells, guard cells and their subsidiary cells that surround the stomata.

SSC CGL Previous Year Questions: General Science - 9 - Question 6

Conversion of starch to sugar is essential for    (SSC CGL 2014)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 9 - Question 6

As sugar concentration increases in the guard cells, as a result water enters the guard cells. The guard cells become turgid (swollen with water). The thin outer walls bulge out and force the inner wall into a crescent shape. In this way a stoma or pore is formed between each pair of guard cell.

SSC CGL Previous Year Questions: General Science - 9 - Question 7

Which of the following Genetically Modified vegetable is recently being made available in Indian market?    (SSC CGL 2014)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 9 - Question 7

Mahyco, an Indian seed company based in Jalna, Maharashtra, has developed the Bt brinjal. The genetically modified brinjal event is termed Event EE 1 and Mahyco have also applied for approval of two brinjal hybrids.

SSC CGL Previous Year Questions: General Science - 9 - Question 8

From which part of Opium Plant we get morphine ?     (SSC CHSL 2014)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 9 - Question 8

Morphine is the most abundant opiate found in opium, the dried latex from unripe seedpods of Papaver somniferum (the opium poppy).

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

Which of the following is a Biological method of soil conservation ?     (SSC CHSL 2014)

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

Efforts by the U.S. Soil Conservation Service to promote contouring in the 1930s as an essential part of erosion control eventually leading to its widespread adoption. The practice has been proved to reduce fertilizer loss, power and time consumption, and wear of machines, as well as to increase crop yields and reduce erosion. Contour farming is most effective when used in conjunction with such practices as strip cropping, terracing, and water diversion.

SSC CGL Previous Year Questions: General Science - 9 - Question 10

Glucose is a type of     (SSC CHSL 2014)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 9 - Question 10

Glucose has the molecular formula C6H12O6 and is thus a hexose sugar.

SSC CGL Previous Year Questions: General Science - 9 - Question 11

Number of mitochondria in bacterial cell is       (SSC CHSL 2014)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 9 - Question 11

Bacteria are prokaryotes, which, by definition, are cells that don't possess membrane-bound organelles. Mitochondria are membrane-bound organelles.

SSC CGL Previous Year Questions: General Science - 9 - Question 12

Rainbow is formed due to      (SSC CHSL 2014)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 9 - Question 12

The rainbow comes from the reflection and refraction of the sunlight in the falling drops; its colors are mainly due to dispersion, which means that the refractive index of water depends on the wavelength of light.

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

Golden view of sea shell is due to    (SSC CHSL 2014)

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

When a ray of light falls on sea shell, then its small amount gets refracted (slightly polarised) and rest almost gets reflected back (fully polarised).

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

An object covers distance which is directly proportional to the square of the time. Its acceleration is    (SSC CHSL 2014)

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

An object covers distance which is directly proportional to the square of the time. Its acceleration is constant.

SSC CGL Previous Year Questions: General Science - 9 - Question 15

If the horizontal range of a projectile is four times its maximum height, the angle of projection is    (SSC CHSL 2014)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 9 - Question 15

If the horizontal range of a projectile is four times its maximum height, the angle of projection is 45 degrees. Range is the total horizontal distance covered during the time of flight. It is calculated as  where θ is the angle of projection.

SSC CGL Previous Year Questions: General Science - 9 - Question 16

Which of the following metals has least melting point ?    (SSC CHSL 2014)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 9 - Question 16

Mercury has the least melting point of the following metals (–38.83°C). Gold, silver and copper have 1064°C, 961.8°C and 1085°C respectively

SSC CGL Previous Year Questions: General Science - 9 - Question 17

The gas produced in marshy places due to decomposition of vegetation is     (SSC CHSL 2014)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 9 - Question 17

Marsh Gas or methane gas is produced when vegetation decomposes in water. Methane, also called marsh gas is colourless, odourless gas that occurs abundantly in nature as the chief constituent of natural gas, as a component of fire damp in coal mines, and as a product of the anaerobic bacterial decomposition of vegetable matter under water.

SSC CGL Previous Year Questions: General Science - 9 - Question 18

In cactus, the spines are the modified     (SSC CHSL 2014)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 9 - Question 18

In cactus, spines are modified leaves.

SSC CGL Previous Year Questions: General Science - 9 - Question 19

The smallest known prokaryotic organism is      (SSC CHSL 2014)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 9 - Question 19

Mycoplasma are the smallest prokaryotic cells yet discovered, can survive without oxygen and are typically about 0.1 μm in diameter.

SSC CGL Previous Year Questions: General Science - 9 - Question 20

According to your text, what can "be thought of as the genetic library that keep life going on Earth" ?    (SSC CHSL 2014)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 9 - Question 20

Biodiversity can be thought of as the genetic library that keeps life going on Earth. Biodiversity, short for biological diversity, is the term used to describe the variety of life found on Earth and all of the natural processes. This includes ecosystem, genetic and cultural diversity, and the connections between these and all species.

SSC CGL Previous Year Questions: General Science - 9 - Question 21

The boiling point of water decreases at higher altiudes is due to      (SSC CHSL 2014)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 9 - Question 21

Boiling point of water is lower at higher altitudes due to the decreased air pressure. Boiling point of water changes with altitude because atmospheric pressure changes with altitude.

SSC CGL Previous Year Questions: General Science - 9 - Question 22

The chemical name of "Hypo"commonly used in photography is     (SSC CHSL 2014)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 9 - Question 22

Sodium thiosulphate, also called sodium hyposulphite or "hypo" is used as a photographic fixer in photography

SSC CGL Previous Year Questions: General Science - 9 - Question 23

Hydrogen bomb is based on the principle of      (SSC Multitasking 2014)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 9 - Question 23

Hydrogen bomb is based on the principle of nuclear fusion. Hydrogen bomb or H-bomb, weapon deriving a large portion of its energy from the nuclear fusion of hydrogen isotopes. The hydrogen bomb functions by the fusion, or joining together, of lighter elements into heavier elements. The end product again weighs less than its components, the difference once more appearing as energy. Because extremely high temperatures are required in order to initiate fusion reactions, the hydrogen bomb is also known as a thermonuclear bomb.

SSC CGL Previous Year Questions: General Science - 9 - Question 24

The commonly used safety fuse-wire is made of    (SSC Multitasking 2014)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 9 - Question 24

The commonly used safety fuse wire is made up of an alloy of tin and lead. Fuse is a safety device used in any electrical installation, which forms the weakest link between the supply and the load. It is a short length of wire made of lead / tin /alloy of lead and tin/ zinc having a low melting point and low ohmic losses. A fuse wire should always have a high resistance and low melting point. High resistance to heat up soon and low melting point to melt away due to the heat produced by high resistance so that the circuit is not damaged.

SSC CGL Previous Year Questions: General Science - 9 - Question 25

At what temperature is the density of water the maximum?    (SSC Multitasking 2014)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 9 - Question 25

When cooled from room temperature liquid water becomes increasingly dense like other substances, but at approximately 4 °C (39 °F), pure water reaches its maximum density. As it is cooled further, it expands to become less dense.

SSC CGL Previous Year Questions: General Science - 9 - Question 26

The linear expansion of a solid rod is independent of its     (SSC Multitasking 2014)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 9 - Question 26

The linear expansion of a solid rod is independent of the time of heat flow. It is directly dependent on the temperature, length of the rod and material of the rod.

SSC CGL Previous Year Questions: General Science - 9 - Question 27

Cathode rays when obstructed by metal cause emission of (SSC Multitasking 2014)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 9 - Question 27

X-rays are produced as a result of obstruction of cathode rays with metal.

SSC CGL Previous Year Questions: General Science - 9 - Question 28

Who is the father of biology?      (SSC Multitasking 2014)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 9 - Question 28

Aristotle is the father of Biology and Zoology.

SSC CGL Previous Year Questions: General Science - 9 - Question 29

The smallest unit of classification is   (SSC Multitasking 2014)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 9 - Question 29

The smallest unit of classification is species. The hierarchy of biological classification's major taxonomic ranks is as follows: species< genus< family < order< class< phylum < kingdom < domain.

SSC CGL Previous Year Questions: General Science - 9 - Question 30

Arenchyma is present in      (SSC Multitasking 2014)

Detailed Solution for SSC CGL Previous Year Questions: General Science - 9 - Question 30

Aerenchyma refers to spaces or air channels in the leaves, stems and roots of some plants, which allows exchange of gases between the shoot and the root. Aerenchyma is widespread in aquatic and wetland plants which must grow in hypoxic soils.

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