Backflow Final exam with correct ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
answers
All the following are required parts of an atmospheric vacuum
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
breaker (asse1001) except a ||\\||\\ ||\\||\\ ||\\||\\
Air inlet float valve
||\\||\\ ||\\||\\ ||\\||\\
The body ||\\||\\
Air canopy ||\\||\\
Shutoff valve - correct answers✔✔Shutoff valve ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
A single check valve for a backflow prevention is acceptable
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
For low hazard ||\\||\\ ||\\||\\
For non-hazard residential
||\\||\\ ||\\||\\ ||\\||\\
,applications
On boilers only
||\\||\\ ||\\||\\
Never - correct answers✔✔Never ||\\||\\ ||\\||\\ ||\\||\\
The following absolute pressure could cause backsiphonage to
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
occur in a hydraulic system (distribution system) at sea level
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
10.5 psia ||\\||\\
15.0 psia ||\\||\\
33.9 psia ||\\||\\
100 psia - correct answers✔✔10.5 psia
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
It is the recommended that double check backflow prevention
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
assembly (asse 1015) be installed with its lowest point a ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
minimum of ||\\||\\
,Six inches from wall
||\\||\\ ||\\||\\ ||\\||\\
Twelve inches from highest point of use ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
Twelve inches above the surrounding ground or floor
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
Thirty inches above the surrounding ground or floor - correct
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
answers✔✔12 inches above surrounding floor ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
When testing a double check valve backflow prevention
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
assembly (asse1015) number two shutoff valve must be closed ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
first to ||\\||\\
Prevent backpressure during the test ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
Prevent backsiphonage during the test ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
Hold water in the downstream piping
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
, Maintain pressure in the assembly - correct ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
answers✔✔Maintain pressure in the assembly ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
Which of the following should be considered when installing a
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
cross connection control device or assembly?
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
Sidewall clearances ||\\||\\
Degree of hazard ||\\||\\ ||\\||\\
Distance of backflow device ||\\||\\ ||\\||\\ ||\\||\\
from floor ||\\||\\
All above - correct answers✔✔All above
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
Backflow can occur whenever the pressure in a potable water ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
system is ______ the pressure in a non potable piping system
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
and the two systems are physically connected
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
Greater than ||\\||\\
answers
All the following are required parts of an atmospheric vacuum
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
breaker (asse1001) except a ||\\||\\ ||\\||\\ ||\\||\\
Air inlet float valve
||\\||\\ ||\\||\\ ||\\||\\
The body ||\\||\\
Air canopy ||\\||\\
Shutoff valve - correct answers✔✔Shutoff valve ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
A single check valve for a backflow prevention is acceptable
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
For low hazard ||\\||\\ ||\\||\\
For non-hazard residential
||\\||\\ ||\\||\\ ||\\||\\
,applications
On boilers only
||\\||\\ ||\\||\\
Never - correct answers✔✔Never ||\\||\\ ||\\||\\ ||\\||\\
The following absolute pressure could cause backsiphonage to
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
occur in a hydraulic system (distribution system) at sea level
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
10.5 psia ||\\||\\
15.0 psia ||\\||\\
33.9 psia ||\\||\\
100 psia - correct answers✔✔10.5 psia
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
It is the recommended that double check backflow prevention
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
assembly (asse 1015) be installed with its lowest point a ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
minimum of ||\\||\\
,Six inches from wall
||\\||\\ ||\\||\\ ||\\||\\
Twelve inches from highest point of use ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
Twelve inches above the surrounding ground or floor
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
Thirty inches above the surrounding ground or floor - correct
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
answers✔✔12 inches above surrounding floor ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
When testing a double check valve backflow prevention
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
assembly (asse1015) number two shutoff valve must be closed ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
first to ||\\||\\
Prevent backpressure during the test ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
Prevent backsiphonage during the test ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
Hold water in the downstream piping
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
, Maintain pressure in the assembly - correct ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
answers✔✔Maintain pressure in the assembly ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
Which of the following should be considered when installing a
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
cross connection control device or assembly?
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
Sidewall clearances ||\\||\\
Degree of hazard ||\\||\\ ||\\||\\
Distance of backflow device ||\\||\\ ||\\||\\ ||\\||\\
from floor ||\\||\\
All above - correct answers✔✔All above
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
Backflow can occur whenever the pressure in a potable water ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
system is ______ the pressure in a non potable piping system
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
and the two systems are physically connected
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
Greater than ||\\||\\
