Relative Humidity (Junior Cert Wood Technology): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What is Relative Humidity in timber seasoning?
What is Relative Humidity in timber seasoning?
Moisture in air vs what it can hold
What does Moisture Content measure in timber?
What does Moisture Content measure in timber?
Water weight vs dry weight as percentage
What does Hygroscopicity mean?
What does Hygroscopicity mean?
Ability to absorb or release moisture
What does hygroscopicity cause in wood?
What does hygroscopicity cause in wood?
Expansion or shrinkage
Why is controlling RH important in timber seasoning?
Why is controlling RH important in timber seasoning?
Stops defects like warping and cracking
How does high RH affect timber's moisture content?
How does high RH affect timber's moisture content?
Raises it
How does low RH affect timber's moisture content?
How does low RH affect timber's moisture content?
Lowers it
How does wood react to RH changes?
How does wood react to RH changes?
Takes in or releases moisture
What does Moisture Content tell us?
What does Moisture Content tell us?
When timber seasoning is complete
What does RH help set in timber seasoning?
What does RH help set in timber seasoning?
Drying schedules
Which defects can proper RH control prevent?
Which defects can proper RH control prevent?
Warping, checking, case hardening
Why is hygroscopicity important in furniture making?
Why is hygroscopicity important in furniture making?
Keeps wood stable