Exercise 4

Gap-fill exercise

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
To perform this exercise you should use the Forest Workers' Glossary: https://fmog.oikothesis.org/

Cold weather hardens the . To reduce the problem you can keep the grease in a warm . However a big problem remains since cold grease is already present in various of the machine, such as and . In this situation it can be advantageous to the machine after it has been used for some hours and the and other parts of the parts of the have warmed up. However, lubrication that have become bunged up in low may require a substantial of heat before the grease starts moving when the machine is lubricated.