Computer · Building Construction
As per IS standard specifications for timber door, window, and ventilator frames, the symbolic designation '12 DT 20' indicates:
- 1A frame of a double shutter door with a width of 12 modules and height of 20 modules✓
- 2A frame of a single shutter door with a width of 12 modules and height of 20 modules
- 3A frame of a ventilator with a width of 12 modules and height of 20 modules
- 4A frame of a window shutter door with a width of 12 modules and height of 20 modules
Correct answer
A frame of a double shutter door with a width of 12 modules and height of 20 modules
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