Category: Building Materials and Construction

A. iron
B. carbon
C. manganese
D. sulphur

A. 5%
B. 15%
C. 25%
D. 35%

A. has good strength along the panel only
B. can be spilt in the plane of the panel
C. has greater impact resistance to blows than ordinary wood
D. cannot be bent more easily than ordinary wood of same thickness

A. gypsum
B. finer grinding
C. tricalcium silicate
D. tricalcium aluminate

A. less than one year
B. 1 to 5 years
C. 5 to 10 years
D. more than 10 years

A. 25 mm
B. 40 mm
C. 65 mm
D. 100 mm

A. balusters
B. newal posts
C. balustrades
D. railings

A. 1/2
B. 1
C. 2
D. 1/4

A. innermost annular rings around the pith
B. portion of timber between heartwood and cambium layer
C. thin layers below the bark
D. thin fibre which extends from the pith outwards and holds the annular rings together

A. 160N/mm2
B. 260N/mm2
C. 420 N/mm2
D. 520 N/mm2