UPSC CMS 2026 Exam β€” August 2, 2026. Revise smart with India's #1 CMS resource. Get Books
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Important diameter of head β€” UPSC CMS MCQs (Obstetrics & Gynaecology) · 2 questions

2021 P2 Q52

Q1. In the mechanism of normal labour the engaging transverse diameter is

  1. Suboccipitobregmatic (9Β·5 cm)
  2. Biparietal diameter (9Β·5 cm)
  3. Bimastoid diameter (7Β·5 cm)
  4. Suboccipitofrontal diameter (10 cm)

Answer & explanation β€” reveal it in the interactive practice above.

PYQ 2020–2025 β€” page 123

2024 P2 Q47

Q2. The diameter of engagement of fetal skull in marked deflexion is

  1. occipitofrontal diameter
  2. Suboccipitofrontal diameter
  3. mentovertical diameter
  4. Suboccipitobregmatic diameter

Answer & explanation β€” reveal it in the interactive practice above.

PYQ 2020–2025 β€” page 336

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