Railways Technical Ability Metrology and Inspection Question Bank Metrology and Inspection

  • question_answer Match List-I with List-II and select the correct answer using the codes given below the lists:
    List-I (Measuring device) List-II (Parameter measured)
    A. Diffraction grating 1. Smaller angular deviations on long flat surfaces
    B. Optical flat            2. On-line measurement of moving parts
    C. Auto collimators       3. Measurement of gear pitch
    D. Laser scan micrometer 4. Surface texture using interferometry
    5. Measurement of very small displacements
    Codes:

    A) A\[\to \]5, B\[\to \]4, C\[\to \]2, D\[\to \]1

    B) A\[\to \]3, B\[\to \]5, C\[\to \]1, D\[\to \]2

    C) A\[\to \]3, B\[\to \]5, C\[\to \]4, D\[\to \]1

    D) A\[\to \]5, B\[\to \]4, C\[\to \]1, D\[\to \]2

    Correct Answer: D


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