WT 3
Question list
1
This type of ground surface generate more rainwater runoff
concrete sidewalk
2
What is the minimum condensate pipe diameter of a cooling equipment with capacity through 125 ToR?
38 mm
3
The principal artery of the venting system to which vent branches are connected.
Main Vent
4
The side walls of a Septic Tank shall be at least ____ above the liquid depth.
9"
5
The extension of a soil or waste stack above the highest horizontal drain connected to the stack.
Stack Vent
6
Maximum horizontal distance of the trap arm with a diameter of 38 mm
1.07 m
7
What is the estimated sewage flow rate of bowling alleys with snack bar only?
283.9 LpD per lane
8
Minimum water seal of a grease trap
51 mm
9
Wet venting is limited to _____ fixtures
4
10
Prohibited vent pipe material below ground
Galvanized wrought iron
11
A water that stands in or passes through the ground
Ground water
12
All condensers and sumps shall be properly trapped at the outlet with a deep seal trap extending to within ____ of the bottom of the tank.
6"
13
Maximum length of a tailpiece
0.6 m
14
What is the maximum length allowed for a vent stack serving 48 DFU?
55
15
Which among the choices is a prohibited trap?
Crown trap
16
A group vent pipe that connects to the vent stack
circuit vent
17
The minimum depth of the sand interceptor under the invert of the outlet pipe is _____.
610 mm
18
What is the minimum distance from disposal field to another disposal field?
1.2 m
19
In a granule test of a water closet, the initial flush of three different flushes must result in no more than _____ on average remaining in the bowl.
125
20
The size of a vent pipe is determined by _____.
FU and length
21
Determine the size of horizontal rainwater piping with a slope of 2% for a 350 sqm roof in an area where the the rainfall is 102 mm/hr.
127 mm
22
Maximum number of slip joint fitting that may be used on the outlet side of a trap
1
23
Elastomeric gasketed and rubber-ring joints shall comply with _____ installation standard
IAPMO
24
Water closets that are made to accommodate overweight and obese people
Bariatric Water Closet
25
Normally in Manila, the rainfall intensity used is _____.
102 mm
26
The maximum trap loading of a pipe size 76 mm
6
27
Minimum dimension of a sand interceptor's inlet opening
0.2 sqm
28
If the development is mostly built of concrete flooring, how can this affect the stormwater sizing?
the drains might be larger
29
If a septic tank can have an effective capacity of 4000 L, how much does the secondary compartment hold?
1,333 L
30
_____ are recommended for oil handling piping works
Neoprene gaskets
31
When disposal fields and/or seepage pits are installed in sloping ground, the minimum horizontal distance between any part of the leaching system and ground surface shall be _____.
15 feet
32
What is the storage factor for self-service auto washers?
1.5
33
What is the gauge pressure to be maintained for air tests as substitute for water test in water pipings?
344.5 kpa
34
Minimum spacing between trenches or leaching beds
1.20 m
35
What is the sewage that turns dark and smell unpleasantly due to anaerobic decomposition?
septic
36
What is required when a soil or waste stack extends 10 or more stories?
Parallel vent stack
37
What downspout size would you specify for a 800 sqm roof with a rainfall intensity around the area of 152.4 mm/hr?
152 mm
38
What will be the size of 0.5% sloped circular bottom gutter serving a roof area of 180 sqm, and the rainfall intensity around the area is 76 mm/hr?
178 mm
39
What is an underground drain pipe that receives only subsurface or seepage water and convey it to a sump for disposal by gravity flow or by lift pump?
subsoil drain
40
What is the horizontal distance required of a vent pipe from any openable window, door opening, air intake, or vent shaft?
3 m
41
Connects directly with an individual trap underneath or behind the fixture
Backvent Pipe
42
Vertical vent pipes installed in a roof used for other purposes shall extend a minimum of _____ above such roof.
2.1 m
43
Every abandoned building sewer shall be plugged or capped within _____ of the property line
1.5 m
44
Rainwater piping located within a medium height building basement area shall be of Galvanized Iron, _____.
Schedule 30
45
Minimum distance of a 32 mm trap arm diameter to a vent
64 mm
46
Which of the following may be true about the sovent system?
it has lesser maintenance cost
47
In getting the roof area for the computation of rainwater piping size, for two walls opposite of differing heights, add ____ of wall area above top of lower wall to the roof area.
50%
48
For each 18.9 Lpm flow over 75.5 Lpm, the area of the sand interceptor inlet section is to be increased by _____.
0.09 sqm
49
When the first compartment exceeds 3.7 m in length, an additional ____ shall be provided.
manhole
50
What can be drained through an airbreak?
air washer
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Question list
1
This type of ground surface generate more rainwater runoff
concrete sidewalk
2
What is the minimum condensate pipe diameter of a cooling equipment with capacity through 125 ToR?
38 mm
3
The principal artery of the venting system to which vent branches are connected.
Main Vent
4
The side walls of a Septic Tank shall be at least ____ above the liquid depth.
9"
5
The extension of a soil or waste stack above the highest horizontal drain connected to the stack.
Stack Vent
6
Maximum horizontal distance of the trap arm with a diameter of 38 mm
1.07 m
7
What is the estimated sewage flow rate of bowling alleys with snack bar only?
283.9 LpD per lane
8
Minimum water seal of a grease trap
51 mm
9
Wet venting is limited to _____ fixtures
4
10
Prohibited vent pipe material below ground
Galvanized wrought iron
11
A water that stands in or passes through the ground
Ground water
12
All condensers and sumps shall be properly trapped at the outlet with a deep seal trap extending to within ____ of the bottom of the tank.
6"
13
Maximum length of a tailpiece
0.6 m
14
What is the maximum length allowed for a vent stack serving 48 DFU?
55
15
Which among the choices is a prohibited trap?
Crown trap
16
A group vent pipe that connects to the vent stack
circuit vent
17
The minimum depth of the sand interceptor under the invert of the outlet pipe is _____.
610 mm
18
What is the minimum distance from disposal field to another disposal field?
1.2 m
19
In a granule test of a water closet, the initial flush of three different flushes must result in no more than _____ on average remaining in the bowl.
125
20
The size of a vent pipe is determined by _____.
FU and length
21
Determine the size of horizontal rainwater piping with a slope of 2% for a 350 sqm roof in an area where the the rainfall is 102 mm/hr.
127 mm
22
Maximum number of slip joint fitting that may be used on the outlet side of a trap
1
23
Elastomeric gasketed and rubber-ring joints shall comply with _____ installation standard
IAPMO
24
Water closets that are made to accommodate overweight and obese people
Bariatric Water Closet
25
Normally in Manila, the rainfall intensity used is _____.
102 mm
26
The maximum trap loading of a pipe size 76 mm
6
27
Minimum dimension of a sand interceptor's inlet opening
0.2 sqm
28
If the development is mostly built of concrete flooring, how can this affect the stormwater sizing?
the drains might be larger
29
If a septic tank can have an effective capacity of 4000 L, how much does the secondary compartment hold?
1,333 L
30
_____ are recommended for oil handling piping works
Neoprene gaskets
31
When disposal fields and/or seepage pits are installed in sloping ground, the minimum horizontal distance between any part of the leaching system and ground surface shall be _____.
15 feet
32
What is the storage factor for self-service auto washers?
1.5
33
What is the gauge pressure to be maintained for air tests as substitute for water test in water pipings?
344.5 kpa
34
Minimum spacing between trenches or leaching beds
1.20 m
35
What is the sewage that turns dark and smell unpleasantly due to anaerobic decomposition?
septic
36
What is required when a soil or waste stack extends 10 or more stories?
Parallel vent stack
37
What downspout size would you specify for a 800 sqm roof with a rainfall intensity around the area of 152.4 mm/hr?
152 mm
38
What will be the size of 0.5% sloped circular bottom gutter serving a roof area of 180 sqm, and the rainfall intensity around the area is 76 mm/hr?
178 mm
39
What is an underground drain pipe that receives only subsurface or seepage water and convey it to a sump for disposal by gravity flow or by lift pump?
subsoil drain
40
What is the horizontal distance required of a vent pipe from any openable window, door opening, air intake, or vent shaft?
3 m
41
Connects directly with an individual trap underneath or behind the fixture
Backvent Pipe
42
Vertical vent pipes installed in a roof used for other purposes shall extend a minimum of _____ above such roof.
2.1 m
43
Every abandoned building sewer shall be plugged or capped within _____ of the property line
1.5 m
44
Rainwater piping located within a medium height building basement area shall be of Galvanized Iron, _____.
Schedule 30
45
Minimum distance of a 32 mm trap arm diameter to a vent
64 mm
46
Which of the following may be true about the sovent system?
it has lesser maintenance cost
47
In getting the roof area for the computation of rainwater piping size, for two walls opposite of differing heights, add ____ of wall area above top of lower wall to the roof area.
50%
48
For each 18.9 Lpm flow over 75.5 Lpm, the area of the sand interceptor inlet section is to be increased by _____.
0.09 sqm
49
When the first compartment exceeds 3.7 m in length, an additional ____ shall be provided.
manhole
50
What can be drained through an airbreak?
air washer