Building Construction
The size of a floor tile commonly used, is

20 cm × 20 cm × 2 cm
All listed here
15 cm × 15 cm × 1.8 cm
22.5 × 22.5 cm × 2.2 cm

ANSWER DOWNLOAD EXAMIANS APP

Building Construction
Depth or height of the arch is the

Perpendicular distance between springing line and extrados
Vertical distance between springing line and intrados
None of these
Perpendicular distance between intrados and extrados

ANSWER DOWNLOAD EXAMIANS APP