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Delhi Police Constable Exam Test 23
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Delhi Police Constable Exam Test 23

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  • Question 1/10
    1 / -0
    A foot ball bounces when it falls on the ground because
    Solutions
    A football bounces when it falls on the floor, because of elasticity of the material used, which when pushed by the ground (Newton third law), comes back to its original position.
  • Question 2/10
    1 / -0
    Who invented the battery?
    Solutions

    Volta invented the battery. Around 1800, he invented a wet battery called a Voltaic Pile. The voltaic pile consisted of pairs of copper and zinc discs piled on top of each other, separated by a layer of cloth or cardboard soaked in brine. The main drawback of this battery was that it cannot be reused.

  • Question 3/10
    1 / -0
    The audible range of sound for human beings is from ______________.
    Solutions

    ● The audible range of sound for human beings is from 20 Hz to 20000 Hz.

    ● Frequencies below 20 Hz are generally felt rather than heard if the amplitude of the vibration is great enough.

    ● High frequencies are the first to be affected by hearing loss due to age or prolonged exposure to very loud noises.

    ● CPCB has the responsibility to regulate and control noise producing and generating sources in the country.

  • Question 4/10
    1 / -0
    Which is a new central sector scheme for Agromarine Processing and development of Agro-Processing Clusters?
    Solutions

    ● Pradhan Mantri Kisan Sampada Yojana is a new central sector scheme for Agro-marine Processing and development of Agro-Processing Clusters.

    ● It is an umbrella scheme incorporating ongoing schemes of the Ministry like Mega Food Parks, Integrated Cold Chain and Value Addition Infrastructure, Food Safety and Quality Assurance Infrastructure, etc.

  • Question 5/10
    1 / -0
    Select the related word/letters/number from the given alternatives.
    ABDE : FGIJ :: IJLM : ?
    Solutions
    The pattern is to pick up the next letter and then jump +2 to pick up the next two adjacent letters
    Like after A take B (next alphabet) and B+2=D and then collect the next letter i.e. E
    Now pick up the next letter to begin i.e. after E, F would come
    Similarly, after F pick up G, then jump 2 to pick up I and then take the next letter i.e. J
    Now here, start with I, pick up J then jump 2 to reach L and then pick up M
    Now pick up the next letter to begin i.e. after M, N would come
    N, pick up O, jump 2 to pick up Q and then pick up R
    So our answer is NOQR
    Hence A
  • Question 6/10
    1 / -0
    In the following question, select the related group of letters from the given alternatives.

    CD : PQ :: GH : ?
    Solutions
    There are 26 alphabets in English and if we assign numbers to each and every alphabet starting from ‘A’, ‘B’, ‘C etc., it will appear to be:
    A=1, B=2, C=3, D=4……. likewise, till Z=26
    So,
    (3)C + 13 = P
    (4)D + 13 = Q
    Likewise,
    (7)G + 13 = T
    (8)H + 13 = U

    Hence, the correct option is B.
  • Question 7/10
    1 / -0
    In the following question, select the related number from the given alternatives.
    9143 : 9963 : : 6731 : ?
    Solutions
    If we sum up the digits of the numbers given:
    9 + 1 + 4 + 3 = 17
    9 + 9 + 6 + 3 = 27
    6 + 7 + 3 + 1 = 17
    8 + 9 + 6 + 4 = 27
    Hence, the correct option is C.
  • Question 8/10
    1 / -0
    In a camp of 160 students, provisions are available for 10 days. If 40 more students join the camp then for how long will the provision last?
    Solutions
  • Question 9/10
    1 / -0
    Raju is twice as good as Vijay. Together, they finish the work in 14 days. In how many days can Vijay alone do the same work?
    Solutions

    Total Work = (2+1)×14 = 42
    time taken by vijay = 42/1 = 42 days
  • Question 10/10
    1 / -0
    Which key is used to move to next line in a Ms-Word document?
    Solutions
    Enter-key is used to move to next line in a Ms-Word document.
    Escape key - Close the available actions menu or message.
    Shift key –Move to a task pane from another pane in the programme window.
    Return Key - A special code that causes a word processor or other application to advance to the beginning of the next line.
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