Question 1

The purpose of sapwood is

Accepted Answer

A)   To provide structural stability to the tree
B)   To provide an outer protective layer to the tree
C)   To manufacture cells for growth rings
D)   To conduct and store foodstuffs
E)   To manufacture chlorophyllF) B) and D)
G) A) and C)

Question 2

Water borne preservatives have the advantage of being

Accepted Answer

A)   Cheap to transport
B)   Non-leaching
C)   Non-corrosive to metals
D)   Resistant to swelling the timber on application
E)   Superfluous to the timber being re-dried after treatmentF) B) and E)
G) A) and B)

Question 3

Hardwoods differ from softwoods in that they

Accepted Answer

A)   Are less expensive
B)   Produce a finer grain pattern
C)   Mostly come from coniferous trees
D)   Contain resins
E)   Are less durableF) C) and D)
G) B) and D) B

Question 4

A disadvantage of the steeping method of applying preservatives to timber is

Accepted Answer

A)   It takes a long time to undertake
B)   It uses a lot of energy
C)   It cannot be applied on site
D)   It can only be used on hardwoods
E)   It cannot be used with water borne preservativesF) None of the above
G) A) and D)

Question 5

Knots are

Accepted Answer

A)   Swellings of highly contorted grain
B)   Surface wounds that have become enclosed in a tree
C)   Flaws in the grain structure caused by stresses in the tree
D)   Part of a branch that becomes enclosed in a tree
E)   Splits that occur on the surface of the timberF) A) and B)
G) A) and C) D

Question 6

Flat sawn timber is characterised by

Accepted Answer

A)   The log being cut laterally
B)   Even wear when used in flooring
C)   Shrinkage having little effect
D)   A large amount of waste when converted
E)   The log being cut longitudinallyF) B) and C)
G) A) and E)

Question 7

Cement bonded particleboard is used in areas where

Accepted Answer

A)   The humidity is below 15%
B)   The temperature is above 250C
C)   There is a high likelihood of water spillage occurring
D)   Organic insulants are being used
E)   The sound level is above 90dBAF) C) and D)
G) A) and B)

Question 8

Air seasoning requires the timber to be

Accepted Answer

A)   Stacked outdoors
B)   Stacked indoors
C)   Stacked in front of a fan
D)   Stacked in front of a heater
E)   Stacked close to a water tankF) C) and E)
G) A) and B)

Question 9

Seasoning of timber

Accepted Answer

A)   Reduces the amount of sapwood
B)   Increases the amount of sapwood
C)   Reduces the moisture content
D)   Equalises the moisture content
E)   Reduces the cellulose contentF) None of the above
G) B) and D)

Question 10

Decay may be prevalent in timber that

Accepted Answer

A)   Contains a high percentage of heartwood
B)   Is used at or below DPC level
C)   Has an equilibrium moisture content below 20%
D)   Has narrow growth rings
E)   Is coated with creosoteF) None of the above
G) All of the above B

Exam 10: Timber

The purpose of sapwood is

Correct Answer
verified

Water borne preservatives have the advantage of being

Correct Answer
verified

Hardwoods differ from softwoods in that they

Correct Answer
verified
B

A disadvantage of the steeping method of applying preservatives to timber is

Correct Answer
verified

Knots are

Correct Answer
verified
D

Flat sawn timber is characterised by

Correct Answer
verified

Cement bonded particleboard is used in areas where

Correct Answer
verified

Air seasoning requires the timber to be

Correct Answer
verified

Seasoning of timber

Correct Answer
verified

Decay may be prevalent in timber that

Correct Answer
verified
B

Exam 10: Timber

The purpose of sapwood is

Correct AnswerverifiedShow Answer

Water borne preservatives have the advantage of being

Correct AnswerverifiedShow Answer

Hardwoods differ from softwoods in that they

Correct AnswerverifiedB

A disadvantage of the steeping method of applying preservatives to timber is

Correct AnswerverifiedShow Answer

Knots are

Correct AnswerverifiedD

Flat sawn timber is characterised by

Correct AnswerverifiedShow Answer

Cement bonded particleboard is used in areas where

Correct AnswerverifiedShow Answer

Air seasoning requires the timber to be

Correct AnswerverifiedShow Answer

Seasoning of timber

Correct AnswerverifiedShow Answer

Decay may be prevalent in timber that

Correct AnswerverifiedB

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
B

Correct Answer
verified

Correct Answer
verified
D

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
B