Building Materials and Construction

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

A. log
B. batten
C. plank
D. baulk

A. 0°
B. 30°
C. 45°
D. 90°

A. 15%
B. 20%
C. 22%
D. 25%

A. to impart plasticity
B. to make the brick durable
C. to prevent shrinkage
D. to make the brick impermeable

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

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. greater tensile strength in longer direction
B. greater tensile strength in shorter direction
C. same tensile strength in all directions
D. none of the above

A. 4% to 6%
B. 10% to 12%
C. 15% to 20%
D. 100%

A. Both A and R are true and R is the correct explanation of A
B. Both A and R are true but R is not the correct explanation of A
C. A is true but R is false
D. A is false but R is true