Symbol sorter.
These are the actual symbols you’ll see on real drawings. For each one, work out what it is — is it electrical, plumbing & heating, or a drawing convention? Then check how many you knew on sight.
ElectricalPower, lighting, switches
Plumbing & heatingWater, gas, the wet system
Drawing conventionNot a real object — a drawing tool
Identified 0 / 9
(a circle with a line)
Electrical. A socket outlet.
(a box with fins)
Plumbing & heating. A radiator.
(an arrow marked N)
Drawing convention. A north arrow — orientation.
(a circle with a cross)
Electrical. A ceiling light point.
(two triangles meeting)
Plumbing & heating. A valve / stopcock.
(a line with end ticks)
Drawing convention. A dimension line.
(a lever on a hinge)
Electrical. A light switch.
(a tall box unit)
Plumbing & heating. A boiler.
(a boxed grid panel)
Drawing convention. A title block.
0/9
Know your symbols?
Identify all nine and check your answers, then mark this complete to add the stamp to your punchcard. Reading symbols on sight is what lets you glance at a drawing and just get it.
Check your answers to unlock. Done — you’re good to go.