The groups of hardwoods that are suitable for railway sleepers in Nigeria is?

The groups of hardwoods that are suitable for railway sleepers in Nigeria is?
  • A.
    gmelina, teak and spruce
  • B.
    obeche, mahogany and pine
  • C.
    pine, fir and mahogany
  • D.
    mahogany, obeche and iroko
Correct Answer: Option D
Explanation
You May Also Like