railway DFCCIL Executive 2025 Mock Test Railway Engineering

यदि S (सामर्थ्य) और H (कठोरता) 12% नमी सामग्री पर लकड़ी के सूचकांक हैं, तो संयोजित स्लीपर सूचकांक है:

1
\(\frac{H + 10 S}{20}\)
2
\(\frac{S + 20 H}{10}\)
3
\(\frac{20 S + H}{10}\)
4
\(\frac{S + 10 H}{20}\)
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