CE 200 Quiz 3Questions with Verified
Answers
Asphalt cement or paving asphalt is the thick semisolid material at room temperature
that is: - ANSWERSHeated for the construction of asphalt concrete (AC) pavements
Timber (or wood) used in civil engineering construction is sourced from: - ANSWERSAll
of the above are true
A characteristic of timber that makes it similar to portland cement concrete (PCC): -
ANSWERSNone of the above is true
Drying shrinkage in wood or timber occurs: - ANSWERSThe most in tangential direction
to the annual or annular growth rings
Wood or timber can have defects, making the wood or the timber unusable for
construction; such defects may be natural or the result of poor seasoning in the lumber
yard, and may contain: - ANSWERSAll of the above are true
Asphalt cements or paving asphalts are graded by their: - ANSWERSViscosity
Wood is an extremely desirable civil engineering construction material because: -
ANSWERSAll of the above are true
The difference between asphalts and tars may be characterized as follows: -
ANSWERSAll of the above are true
Which option below lists the exogenous trees' components correctly (sorted in outward
direction): - ANSWERSPith, Heartwood, Sapwood, Cambium, Bark
Asphalt binders: - ANSWERSAll of the above are true
Which sawing pattern is better and why: - ANSWERSQuarter-sawn because the timber
shrinks less in width
Cutback asphalts are prepared by thinning or having their viscosity reduced: -
ANSWERSBy mixing them with petroleum derived solvents, such as light, middle, or
heavy distillates
When all the absorbed or free moisture (i.e., the moisture stored in the cell cavity) has
evaporated, the wood or timber reaches its fiber saturation point At which: -
ANSWERSAll of the above are true
Answers
Asphalt cement or paving asphalt is the thick semisolid material at room temperature
that is: - ANSWERSHeated for the construction of asphalt concrete (AC) pavements
Timber (or wood) used in civil engineering construction is sourced from: - ANSWERSAll
of the above are true
A characteristic of timber that makes it similar to portland cement concrete (PCC): -
ANSWERSNone of the above is true
Drying shrinkage in wood or timber occurs: - ANSWERSThe most in tangential direction
to the annual or annular growth rings
Wood or timber can have defects, making the wood or the timber unusable for
construction; such defects may be natural or the result of poor seasoning in the lumber
yard, and may contain: - ANSWERSAll of the above are true
Asphalt cements or paving asphalts are graded by their: - ANSWERSViscosity
Wood is an extremely desirable civil engineering construction material because: -
ANSWERSAll of the above are true
The difference between asphalts and tars may be characterized as follows: -
ANSWERSAll of the above are true
Which option below lists the exogenous trees' components correctly (sorted in outward
direction): - ANSWERSPith, Heartwood, Sapwood, Cambium, Bark
Asphalt binders: - ANSWERSAll of the above are true
Which sawing pattern is better and why: - ANSWERSQuarter-sawn because the timber
shrinks less in width
Cutback asphalts are prepared by thinning or having their viscosity reduced: -
ANSWERSBy mixing them with petroleum derived solvents, such as light, middle, or
heavy distillates
When all the absorbed or free moisture (i.e., the moisture stored in the cell cavity) has
evaporated, the wood or timber reaches its fiber saturation point At which: -
ANSWERSAll of the above are true
