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RRB Technician (Grade-III) 2024 Mix Test - 22
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RRB Technician (Grade-III) 2024 Mix Test - 22
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  • Question 1/10
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    Which of the following tissues is responsible for storing fat?

    Solutions

    The correct answer is Adipose Tissue.

    • The tissue that stores fat in humans is called adipose tissue.
      • It is made up of specialized cells called adipocytes.
      • Its main function is to store energy in the form of fat and also act as a shock absorber (cushion) and insulator.

    Additional Information

    • Cartilage is a non-vascular type of supporting connective tissue found throughout the body.
      • Cartilage is a flexible connective tissue that differs from the bone in several ways;
    • Areolar connective tissue is the type of tissue that connects and surrounds the various organs in the human body.
      • The important function of this type of tissue is that it provides nourishment to the cells and also acts as a cushion to protect the organs from various external forces.
  • Question 2/10
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    Select a figure from among the answer figures which will continue the same series as established by the five problem figures.

    Solutions

    The two signs “×” and “ = ” move alternately:

    The “ = ”sign moves to the adjacent part anti-clockwise in the first, third, fifth, etc. steps and then in the second step, it remains unchanged.

    The “×” symbol moves to the adjacent part anti-clockwise in the second, fourth, sixth, etc. steps.

    Hence, the answer will be option 4.

  • Question 3/10
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    Arrange the following words according to English Dictionary.

    (a) abase

    (b) absurd

    (c) absymal

    (d) abash

    Solutions

    As per the dictionary, the given words can be arranged as:

    (a) abase

    (d) abash

    (b) absurd

    (c) absymal

    Hence, "(a), (d), (b), (c)" is the correct answer.

  • Question 4/10
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    The radius of the earth is 6.4 × 10m.  What is the minimum speed of a satellite to place in earth's orbit?

    Solutions

    CONCEPT:

    • Escape velocity is the minimum velocity with which a body is projected from the surface of the planet so as to reach infinity, by overcoming the pull by gravity.

    Escape velocity at the surface of a planet is given by,

    Where G = gravitational constant (6.67 × 10-11 Nm2/kg2), M = mass of the Earth = 5.98 × 1024 kg and R = radius of the planet.

    • The time period of a satellite: It is the time taken by the satellite to complete one revolution around the Earth.

    Consider a satellite orbiting the earth at a height h from the surface of the earth of radius R.

    The circumference of orbit of satellite = 2πR

    The orbital velocity of the satellite is given by,

  • Question 5/10
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    Select the one which is different from the other three responses.

    Solutions

    The logic followed here is:

    Palace on Wheels, Maharajas' Express, Golden Chariot are the luxury tourist train of India while Deccan Queen is the Indian Passenger train.

    Hence, the correct answer is "Deccan Queen".

    Important Points

    • Deccan Queen was the first long-distance electric-hauled train run between Mumbai and Pune introduced on June 1, 1930.
  • Question 6/10
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    In the following question, three statements are given followed by four conclusions I, II, III and IV. You have to consider the given statements to be true even, if they seem to be at variance with commonly known facts. Read all the conclusions and decide which of the following logically follows from the given statements disregarding the commonly known facts.

    Statements:

    All sets are humanity.

    Some fans are humanity.

    Some birds are fans.

    No bird is air.

    Conclusions:

    I. Some fans are sets.

    II. Some fans are not sets.

    III. No fan is air.

    IV. Some air is fans.

    Solutions

    Consider the following least possible Venn diagram,

    Conclusions:

    I. Some fans are sets → It’s possible but not definite, hence false.

    II. Some fans are not set → It’s possible but not definite, hence false.

    III. No fan is air → It’s possible but not definite, hence false.

    IV. Some air is fans → It’s possible but not definite, hence false.

    When we combine the statement III and IV we can say that either III or IV follows.

    Hence, either I or II and either III or IV follow.

    Additional Information

    Important Points

    Conditions of Either-or case:

    1. The elements should be the same in both statements

    2. Individually both the conclusions should be false

    3. One conclusion should be positive and one conclusion should be negative (Complementary pair)

    The two complementary pairs are:

    1) All + Some not

    2) No + Some

    Mistake Points

    1) If two conclusions have the same subject and predicate and consist of a complementary pair but one of the conclusions is true, then it will not form an either-or case.

    2) Do not consider “Some + Some” as a complementary pair for the either-or case.

    Confusion Points

    "Some + Some not" are complementary pairs of Neither nor case.

  • Question 7/10
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    DRDO has conducted the first successful flight test of Agni-5 missile equipped with MIRV technology. What is the full form of MIRV?

    Solutions

    The correct answer is  Multiple Independently Targetable Re-entry Vehicle.

    In News

    • DRDO conducted the first successful flight test of an indigenously developed Agni-5 missile with Multiple Independently Targetable Re-Entry Vehicle ( MIRV) technology.
    • The flight test named Mission Divyastra was carried out from Dr APJ Abdul Kalam Island in Odisha.

    Key Points

    • MIRV is a technology enabling a single missile to deploy multiple nuclear warheads independently to different targets.
    • This technology significantly enhances the effectiveness and flexibility of missile systems.
    • MIRVs are possessed by a select group of nations including the US, UK, Russia, France, and China.
    • India's successful development of MIRV technology represents a significant advancement in its defense capabilities and strategic position.
    • MIRVs allow for a single missile to hit multiple targets simultaneously, increasing the potency of a country's nuclear arsenal.
    • The technology is crucial for executing a punishing second strike with lethal capabilities, particularly in the context of India's no-first-use policy.
  • Question 8/10
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    Find the missing number from the below options.

    Solutions

    Let the missing number be x.

    The pattern followed here is,

    In column 1 : 8 ÷ 2= 8 ÷ 4 = 2

    In column 3 : 100 ÷ 52 = 100 ÷ 25 = 4

    Now,

    In column 2 : 80 ÷ x= 5 → x2 = 16.

    Therefore, x = 4.

    Hence, 4 is the correct answer.

  • Question 9/10
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    Acidified KMnO4 can be used:

    Solutions

    The correct answer is Option 2.

    Key Points

    • Acidified KMnO4 can be used to get carboxylic acids directly from alcohol. Hence, option 2 is correct.
    • KMnO4 solution decolourises when it reduced to Mn2+ (in acidic medium).
    • So basically by oxidation-reduction process KMnO4 solution decolorises.
    • Now in KMnO4 solution oxidation state of Mn is +7 and it reduced to Mn2+ then oxidation state is +2 .
    • So, KMnO4 is an oxidizing agent which reduced itself by oxidizing others.

    Important Points

    Uses of KMnO4

    • Potassium permanganate is mostly used for its oxidising properties, and it is widely used because it does not generate toxic byproducts.
    • KMnO4 is widely used as an antiseptic to treat various fungal infections, ulcers, wounds, and other skin conditions.
    • It is used in water treatment to remove minerals like iron and hydrogen sulfide and to control organisms such as zebra mussels.
    • This chemical compound is also used to remove rust from water pipes and equipment.
    • Another significant use of potassium permanganate is in the synthesis of organic compounds.
    • It is used in the preservation of fruits.
    • It is included in survival kits as it can be used to easily start a fire.
    • It is also used in rocket propellant.
    • KMnO4 is used in treating fish diseases and parasites.
  • Question 10/10
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    Find the wrong term in the following series.

    HK15, IL16, JM17, KN17

    Solutions

    According to the English alphabet series and its positional value:

    The logic follows here is:

    Hence, the answer is KN17.

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