Building Materials and Construction

A. 10
B. 12
C. 15
D. no limit

A. 300 to 350 mm
B. 400 to 450 mm
C. 500 to 550 mm
D. 600 to 650 mm

A. 90° and 0°
B. 75° and 30°
C. 60° and 10°
D. 40° and 25°

A. to support the frame work of the roof
B. to receive the ends of principal rafter
C. to prevent the walls from spreading outward
D. to prevent the tie beam from sagging at its centre

A. 2.5 m
B. 3.5 m
C. 4.5 m
D. 5.5 m

A. to support the common rafter
B. to support purlins
C. to prevent the purlins from tilting
D. all of the above

A. (1) and (3)
B. (1) and (4)
C. (2) and (3)
D. (2) and (4)

A. 2.5 m
B. 3.5 m
C. 4.5 m
D. 5.5 m

A. hip
B. gable
C. ridge
D. eaves

A. two directions without break in the slope on each side
B. two directions with break in the slope on each side
C. four directions without break in the slope on each side
D. four directions with break in the slope on each side