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RRB Technician (Grade-I) 2025 Mix Test - 21
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  • Question 1/10
    1 / -0.33

    The value of inductance needed to store 4kWh of energy in a coil carrying a 2000A current is:

  • Question 2/10
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    A hollow cylindrical pipe is open at both ends. The external radius is 15 cm and the internal radius is 8 cm. The length of the pipe is 28 cm and it is coated with rust-proof polish on the inner and outer curved surfaces as well as on both circular rings at the ends, at a rate of ₹2.20 per cm². If the polisher asks for 25% of the total cost in advance, how much amount remains to be paid? (Use π = 22/7)

  • Question 3/10
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    If the value of the common base current gain (α) is 0.98, then the value of the common collector current gain (γ) is ___________.

  • Question 4/10
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    In File Explorer of Windows 11, which of the following tabs includes the 'hidden items' option?

  • Question 5/10
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    The diameters of the two circular ends of a bucket are 44 cm and 24 cm. The height of the bucket is 35 cm. The capacity of the bucket is:

  • Question 6/10
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    In the following question, two positions of a die are given. Which number will appear on the face opposite to the face with the number 4?

  • Question 7/10
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    A megger has ____ current coil(s) and ____ potential coil(s).

  • Question 8/10
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    If 8th and 12th terms of an A.P. be 82 and 478 respectively, then its 50th term is:

  • Question 9/10
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    In CRO, the measurement of time period is obtained by the product of the number of divisions occupied by one cycle and ________.

  • Question 10/10
    1 / -0.33

    Which among the following is the dual of Boolean expression X+YZ=(X+Y) (X+Z)?

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