WorksheetsNCCER 02111 DWV 4.0 Quiz
Total questions: 14
Worksheet time: 5mins
Name
Class
Date
1.
The height above an established reference point, such as a grade reference point on a construction drawing.
a)
grade
b)
plane
c)
elevation
d)
offset
2.
When referring to DWV and especially sewer systems, the slope of a run of pipe is ____.
a)
slope
b)
grade
c)
incline
d)
tilt
3.
Semi-liquid matter that settles out in a holding tank during the waste treatment process.
a)
sliquid
b)
scum
c)
flurry
d)
sludge
4.
Technically, the speed and direction of a moving object. Commonly used in place of speed for describing the motion of fluids in pipes.
a)
velocity
b)
speed
c)
friction
d)
resistance
5.
Minimum velocity required to keep solids suspended and from settling in pipe is ____.
a)
4 feet per second
b)
8 feet per second
c)
2 feet per second
d)
5 feet per second
6.
The _______ is the main horizontal pipe inside a building. It carries all sewage and other liquid wastes to the building sewer.
a)
public sewer
b)
building waste
c)
building sewer
d)
building drain
e)
smile waste
7.
A ______ is the part of a drain pipe that extends laterally (sideways) from a soil or waste stack and receives the discharge from one or more fixture drains.
a)
fixture branch
b)
drain branch
c)
horizontal branch
d)
vertical branch
8.
building sewers start ___ feet from building and tie into public sewer.
a)
2 - 3
b)
1 - 2
c)
2 - 5
d)
2 - 4
9.
Manholes must be provided for underground piping that is ___ or larger in diameter.
a)
4 inches
b)
6 inches
c)
8 inches
d)
10 inches
10.
Municipalities or towns usually install a 6" sewer laterally from the _______to the edge of each building lot.
a)
public sewer
b)
sewer main
c)
building sewer
d)
building drain
11.
Select all correct answer for SUM of 5
a)
2+2+1
b)
1+1+1+1+1
c)
1+2+1+1
d)
2+3
e)
1+0+1+1+1
12.
A public water supply system
a)
Municipal Water
b)
Water Intake
c)
Water Resource Distribution
d)
Water Withdrawl
13.
Wastewater contains unwanted materials from human activity in homes or shelters, industries, agricultural use, and farming and it needs to be treated to make it safe again
a)
Agree
b)
Disagree
14.
What is the water that fills the cracks and spaces in underground soil and rock layers called?
a)
Groundwater
b)
Water Table
c)
Precipitation
d)
Snow
100 %
