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RRB Group D Mix Test 56
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RRB Group D Mix Test 56
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  • Question 1/10
    1 / -0

    Transformer maximum efficiency is the condition / condition that

    Solutions

    The maximum efficiency of Transformers is the condition that all losses are zero.

     

  • Question 2/10
    1 / -0

    Which of the states (in descending order) is correct in terms of population?

    1. West Bengal

    2. Uttar Pradesh

    3. Maharashtra

    4. Bihar

    Solutions

    In terms of population, the states are Uttar Pradesh (16.51%), Maharashtra (9.28%), Bihar (8.6%) and West Bengal (7.54%).

     

  • Question 3/10
    1 / -0

    In the insulator, there is no flow of current, because:

    Solutions

    In the insulator, there is no flow of current because there are no free electrons in them.

     

  • Question 4/10
    1 / -0

    How many times will the number 9 occur if you write numbers from 1 to 100?

    Solutions

    1 to 10 digits 9 occurs 1 times.

    11 to 20 digits 9 occurs 1 times

    21 to 30 digits occurs 1 times

    31 to 40 digits 9 occurs 1 times

    9 to 41 to 50 points 1 times

    Similarly also .....

    Then the numbers from 1 to 80, 9 will come 8 times.

    Now the numbers 81 to 99, 9 will come  89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99 = 12 times

    Total repetition of this digit 3 = 8 + 12 = 20 times

     

  • Question 5/10
    1 / -0

    If in a sign language ‘go home’ is written as ‘ta na’ and ‘sweet home’ is written as ‘na ja’ and ‘sweet and sour’ is written as ‘pa sa ja’ then what will be written for ‘sour’?

    Solutions

    go home → ta na ..... (i)

    sweet home → na ja ..... (ii)

    sweet and sour → pa sa ja .... (iii)

    (ii) and (iii)sweet → ja

    ∴ sour → pa or sa

     

  • Question 6/10
    1 / -0

    Neela knows exactly that her brother's date of birth is after 12th and before February 16th, while her sister remembers that her brother's date of birth is after 14th but before 20th February. What is the exact date of birth?

    Solutions

    According to blue, the date of birth of her brother = 13, 14, 15 February

    According to her sister, her brother's birth date = 15, 16, 17, 18, February 19

    ∴ Brother's expected date of birth is 15th February.

     

  • Question 7/10
    1 / -0

    A coin is placed on a horizontal disk. The disk passes through the center of the vertical axis rotating through its center. The coin splits on changing the disk's speed, the reason is:

    Solutions

    A coin is placed on a horizontal disk and the disk passes through its center passes through the vertical axis: rotates, then the coin gets off the disk at the maximum speed of the disk, because the friction between coins and disc is insufficient.

     

  • Question 8/10
    1 / -0

    If the length of diagonals of a quadrilateral is 6 cm and 4 cm respectively, then what is the area of it?

    Solutions

     

  • Question 9/10
    1 / -0

    D is the point on an extended line BC in ∆ABC. If the measurement of AB = AC and ∠ACD is 140º, then who will be the measure of ∠ABC in the following?

    Solutions

    In the given figure, for ∠ABC, ∠B = x 

    then

    ∠ACB = x

    ∴ ∠C = 40º

    thus ∠B = 40º

     

  • Question 10/10
    1 / -0

    Which of the following losses comes from Low Power Factor?

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