BCIT STUDY BCWWA - Ultimate Study Guide
The Check Valves of a Double Check Valve Assembly must be :
Correct Answer - Internally Loaded
Which of the following backflow preventers offers effective
protection under backsiphonage conditions only and can also be
subjected to constant full line pressure ? Correct Answer - Spill
Resistant Type Pressure Vacuum Breaker
Which of the choices is best described as " a flow of water or other
liquids back into the potable water supply due to a negative or
reduced pressure in the supply piping ? " Correct Answer -
Backsiphonage
A residential " partial flow through " type fire sprinkler / standpipe
system is designed to circulate water in what portion ( s ) of the
water system ? Correct Answer - Sprinkler system main
The factory loaded spring tensions of the first and second check
valves found in a Reduced Pressure Principle Backflow Assembly
are always : Correct Answer - Pre - loaded different from one
another
An Air Gap must be : Correct Answer - Twice the pipe diameter
with a minimum of 1 inch separation
Upon completing test number one of a Double Check Valve
Assembly , when using a differential pressure gauge in what position
are the shut off valves for the next test ? Correct Answer -
Shutoff valve # 1 is open and shutoff valve # 2 is closed
According to the AWWA Canadian CCC manual , the minimum
vertical distance from the bottom of a RP's relief valve to the
, finished floor level should be ? Correct Answer - 300 mm ( 12 "
)
The Dual Check Valve can be used to isolate which one of the
following applications ? Correct Answer - Residential potable
water systems with a minor degree of hazard
Backflow prevention assemblies shall be field tested to a minimum
of : Correct Answer - Annually
preventers be installed before a fixed platform is to be provided
below the assembly ? To what maximum centerline height ( from
the finished floor ) must testable backflow Correct Answer -
1500 mm ( 5 ' )
Which backflow preventer contains a float check , a check seat and
an air inlet poppet ? Correct Answer - Atmospheric Vacuum
Breaker
The Pressure Vacuum Breaker Assembly may be used for backflow
protection for which of the following conditions ? Correct Answer
- Backsiphonage ; severe hazard
How many test cocks are there on a Spill Resistant Type Pressure
Vacuum Breaker Assembly ? Correct Answer - One
When field testing a Pressure Vacuum Breaker Assembly installed
close to a ceiling , the gauge should : Correct Answer - Be
placed at the same level as the assembly
During the first test of a Double Check Valve Assembly , it is found
that water continually runs from open test cock # 3. The bleed off
valve arrangement is opened and after a moment the water stops
running out of the open bleed off valve arrangement , but continues
The Check Valves of a Double Check Valve Assembly must be :
Correct Answer - Internally Loaded
Which of the following backflow preventers offers effective
protection under backsiphonage conditions only and can also be
subjected to constant full line pressure ? Correct Answer - Spill
Resistant Type Pressure Vacuum Breaker
Which of the choices is best described as " a flow of water or other
liquids back into the potable water supply due to a negative or
reduced pressure in the supply piping ? " Correct Answer -
Backsiphonage
A residential " partial flow through " type fire sprinkler / standpipe
system is designed to circulate water in what portion ( s ) of the
water system ? Correct Answer - Sprinkler system main
The factory loaded spring tensions of the first and second check
valves found in a Reduced Pressure Principle Backflow Assembly
are always : Correct Answer - Pre - loaded different from one
another
An Air Gap must be : Correct Answer - Twice the pipe diameter
with a minimum of 1 inch separation
Upon completing test number one of a Double Check Valve
Assembly , when using a differential pressure gauge in what position
are the shut off valves for the next test ? Correct Answer -
Shutoff valve # 1 is open and shutoff valve # 2 is closed
According to the AWWA Canadian CCC manual , the minimum
vertical distance from the bottom of a RP's relief valve to the
, finished floor level should be ? Correct Answer - 300 mm ( 12 "
)
The Dual Check Valve can be used to isolate which one of the
following applications ? Correct Answer - Residential potable
water systems with a minor degree of hazard
Backflow prevention assemblies shall be field tested to a minimum
of : Correct Answer - Annually
preventers be installed before a fixed platform is to be provided
below the assembly ? To what maximum centerline height ( from
the finished floor ) must testable backflow Correct Answer -
1500 mm ( 5 ' )
Which backflow preventer contains a float check , a check seat and
an air inlet poppet ? Correct Answer - Atmospheric Vacuum
Breaker
The Pressure Vacuum Breaker Assembly may be used for backflow
protection for which of the following conditions ? Correct Answer
- Backsiphonage ; severe hazard
How many test cocks are there on a Spill Resistant Type Pressure
Vacuum Breaker Assembly ? Correct Answer - One
When field testing a Pressure Vacuum Breaker Assembly installed
close to a ceiling , the gauge should : Correct Answer - Be
placed at the same level as the assembly
During the first test of a Double Check Valve Assembly , it is found
that water continually runs from open test cock # 3. The bleed off
valve arrangement is opened and after a moment the water stops
running out of the open bleed off valve arrangement , but continues
