2. Sample Papers
  3. Railways

Railways Sample Paper RRBs Assistant Loco Pilot and Technician CBT STAGE-I Sample Paper-8

  • question_answer
    Gypsum is added to Portland cement to

    A)  Accelerate the process of setting

    B)  Harden it

    C)  Retard the process of setting

    D)  Improve hydratability of cement

    Correct Answer: C

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