Answer Key: Self-Test D-3.3

1. Figure 2P-46

Table 1 Answers
Letter	Name	Leader (m²)	Load	Size
A	RWL	42.12	252.72 L	2 in.
B	Storm building drain	N/A	252.72 L	3 in.
C	Storm building drain	N/A	648 L	3 in.
D	RWL	196	1,176 L	2 in.
E	Storm building drain	N/A	1,311 L	3 in.
F	Storm building drain	N/A	900.72 L	3 in.
G	Trap arm fixture drain	N/A	135 L	2 in.
H	Storm building drain	N/A	2211.72 L	3 in.
I	Stack	N/A	101 FU	3 in.
J	Trap arm fixture drain	N/A	19.65 FU	3 in.
K	Sanitary building drain	N/A	120.65 FU	4 in.
L	Combined building drain	N/A	5,129.72 L	4 in.
M	Sanitary building drain	N/A	55 FU	4 in.
N	Stack	N/A	211 FU	4 in.
O	Sanitary building drain	N/A	266 FU	5 in.
P	RWL	91	546 L	2 in.
Q	Storm building drain	N/A	1,228.5 L	3 in.
R	Storm building drain	N/A	1,774.5 L	3 in.
S	Stack	N/A	75 FU	3 in.
T	Sanitary building drain	N/A	87.68 FU	4 in.
U	Combined building drain	N/A	4,494.5 L	4 in.
V	Combined building drain	N/A	5,237.6 L	5 in.
W	Combined building drain	N/A	8,926.42	5 in.

2. Figure 2P-47

Table 2 Answers
Letter	Name	Leader (m²)	Load	Size
A	RWL	102	1,020 L	2 in.
B	Stack	N/A	25 FU	3 in.
C	Stack	N/A	35.46 FU	3 in.
D	Sanitary building drain	N/A	35.46 FU	4 in.
E	Combined building drain	N/A	3,677 L	4 in.
F	RWL	270	2,700 L	2.5 in.
G	Storm building drain	N/A	2,700 L	3 in.
H	Combined building drain	N/A	6,377 L	5 in.
I	Stack	N/A	103 FU	4 in.
J	Trap arm fixture drain	N/A	99 L	2 in.
K	Sanitary building drain	N/A	103 FU	4 in.
L	Combined building drain	N/A	6,377 L	5 in.
M	RWL	104	1,040 L	2 in.
N	RWL	104	1,139 L	2 in.
O	Storm building drain	N/A	1,139 L	3 in.
P	Combined building drain	N/A	7,516 L	5 in.
Q	Stack	N/A	75 FU	3 in.
R	Sanitary building drain	N/A	86.73 FU	4 in.
S	Combined building drain	N/A	7,849 L	5 in.
T	Sanitary building drain	N/A	145 FU	4 in.
U	Stack	N/A	145 FU	4 in.
V	Combined building drain	N/A	8,655.8 L	5 in.

3. Figure 2P-48

Table 3 Answers
Letter	Name	Leader (m²)	Load	Size
A	RWL	200	1,600 L	2 in.
B	Storm building drain	N/A	2,500 L	4 in.
C	Stack	N/A	132 FU	4 in.
D	Combined building drain	N/A	4,680 L	4 in.
E	Storm building drain	N/A	480 L	3 in.
F	Stack	N/A	150 FU	4 in.
G	Stack	N/A	181.7 FU	4 in.
H	Sanitary building drain	N/A	181.7 FU	4 in.
I	Combined building drain	N/A	5,340 L	4 in.
J	Combined building drain	N/A	6,446.2 L	5 in.
K	Trap arm fixture drain	N/A	31.7 FU	4 in.
L	RWL	35	280 L	2 in.
M	Combined building drain	N/A	6,726.2 L	5 in.
N	Stack	N/A	30 FU	3 in.
O	Stack	N/A	42.68 FU	3 in.
P	Sanitary building drain	N/A	42.68 FU	4 in.
Q	Combined building drain	N/A	7,359.2 L	5 in.
R	Stack	N/A	80 FU	3 in.
S	Stack	N/A	103.78 FU	4 in.
T	Sanitary building drain	N/A	103.78 FU	4 in.
U	Combined building drain	N/A	8,762.2 L	5 in.

4. Figure 2P-49

Table 4 Answers
Letter	Name	Leader (m²)	Load	Size
A	Stack	N/A	89 FU	3 in.
B	RWL	91	637 L	2 in.
C	Storm building drain	N/A	637 L	3 in.
D	Combined building drain	N/A	2,997 L	4 in.
E	RWL	60.5	423.5 L	2 in.
F	Storm building drain	N/A	423.5 L	3 in.
G	Combined building drain	N/A	3,420.5 L	4 in.
H	RWL	72	504 L	2 in.
I	Storm building drain	N/A	504 L	3 in.
J	Combined building drain	N/A	3,924.5 L	4 in.
K	Stack	N/A	32 FU	3 in.
L	Stack	N/A	39.61 FU	3 in.
M	Combined building drain	N/A	4,140.5 L	4 in.
N	RWL	216	1,512 L	2 in.
O	Stack	N/A	68 FU	3 in.
P	Combined building drain	N/A	3,872 L	4 in.
Q	Stack	N/A	77 FU	3 in.
R	Trap arm fixture drain	N/A	3.17 FU	2 in.
S	Stack	N/A	80.17 FU	3 in.
T	RWL	99	693 L	2 in.
U	Combined building drain	N/A	3,143 L	4 in.
V	Combined building drain	N/A	4,655 L	4 in.
W	Combined building drain	N/A	6,496.1 L	5 in.

5. Figure 2P-50

Table 5 Answers
Letter	Name	Leader (m²)	Load	Size
A	RWL	N/A	2,376 L	2.5 in.
B	Storm building drain	N/A	2,970 L	4 in.
C	Stack	N/A	45.95 FU	4 in. — 26.945 FU from one floor
D	Combined building drain	N/A	6,095 L	5 in.
E	Stack	N/A	127.91 FU	4 in.
F	Sanitary building drain	N/A	127.91 FU	4 in.
G	RWL	100	1,100 L	2 in.
H	Storm building drain	N/A	1,100 L	3 in.
I	Combined building drain	N/A	5,530 L	4 in.
J	Stack	N/A	154.53 FU	4 in.
K	Sanitary building drain	N/A	154.53 FU	4 in.
L	Combined building drain	N/A	6,340 L	5 in.
M	Combined building drain	N/A	10,075 L	5 in.

6. Figure 2P-51

Table 6 Answers
Letter	Name	Leader (m²)	Load	Size
A	Storm building drain	N/A	495 L	3 in.
B	Storm building drain	N/A	1,450 L	3 in.
C	Storm building drain	N/A	1,945 L	3 in.
D	Storm building drain	N/A	2,880 L	4 in.
E	Storm building drain	N/A	4,825 L	4 in.
F	Storm building drain	N/A	4,825 L	4 in.
G	Sanitary building drain	N/A	216.21 FU	5 in.
H	Combined building drain	N/A	8,497.5 L	5 in.
I	Sanitary building drain	N/A	119 FU	4 in.
J	Sanitary building drain	N/A	267 FU	5 in.
K	Sanitary building drain	N/A	386 FU	5 in.
L	Storm building drain	N/A	990 L	3 in.
M	Storm building drain	N/A	3,020 L	4 in.
N	Storm building drain	N/A	4,010 L	4 in.
O	Storm building drain	N/A	4,010 L	4 in.
P	Sanitary building drain	N/A	129.02	4 in.
Q	Combined building drain	N/A	6,910 L	5 in.
R	Combined building drain	N/A	9,063.6 L	5 in.
S	Combined building drain	N/A	17,561.1 L	6 in.
T	RWL	288	2,280 L	2.5 in.
U	RWL	145	1,450 L	2 in.
V	RWL	49.5	495 L	2 in.
W	RWL	99	990 L	2 in.
X	RWL	302	3,020 L	2.5 in.

7. Drawing 2P-52

Table 7 Answers
Letter	Name	Leader (m²)	Load	Size
A	RWL	144	1,296 L	2 in.
B	Storm building drain	N/A	1,296 L	4 in
C	Stack	N/A	232.93 FU	4 in.
D	Sanitary building drain	N/A	232.93 FU	5 in.
E	Combined building drain	N/A	3,881 L	5 in.
F	RWL	85.5	769.5 L	2 in.
G	Storm building drain	N/A	769.5 L	4 in.
H	Combined building drain	N/A	4,650 L	5 in.
I	Stack	N/A	85 FU	3 in.
J	Sanitary building drain	N/A	85 FU	4 in.
K	Combined building drain	N/A	5,111.5 L	5 in.
L	RWL	144	1,296 L	2 in.
M	Storm building drain	N/A	1,296 L	4 in.
N	Combined building drain	N/A	6,407.5 L	5 in.
O	Stack	N/A	75 FU	3 in.
P	Sanitary building drain	N/A	113.04 FU	4 in.
Q	Combined building drain	N/A	8,170 L	6 in.
R	Stack	N/A	212 FU	4 in.
S	Sanitary building drain	N/A	212 FU	5 in.
T	Combined building drain	N/A	10,099.2 L	6 in.

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