AWWA Equipment and Material Standards 5

Question 1

Which AWWA standard covers fire hydrants for ordinary water service?

Accepted Answer

AWWA C502

Answer

AWWA C502 covers dry-barrel fire hydrants for ordinary water works service.

Question 2

AWWA C504 applies to which type of valve commonly used in water transmission mains?

Accepted Answer

Butterfly valve

Answer

AWWA C504 covers rubber-seated butterfly valves in sizes 3-inch through 72-inch for water works service.

Question 3

Which AWWA standard specifically addresses polyethylene encasement for ductile iron pipe systems?

Accepted Answer

AWWA C105

Answer

AWWA C105 covers polyethylene encasement for ductile iron pipe systems to protect against external corrosion.

Question 4

Per AWWA standards, what minimum pressure is typically used during a hydrostatic acceptance test for newly installed water mains?

Accepted Answer

50 psi above working pressure or 1.5× working pressure, whichever is greater

Answer

AWWA C600 requires hydrostatic testing at 50 psi above working pressure or 1.5 times the working pressure, whichever is greater.

Question 5

AWWA C153 covers which type of ductile iron fittings?

Accepted Answer

Compact ductile iron fittings

Answer

AWWA C153 covers compact ductile iron fittings, which are shorter and lighter than full-body C110 fittings.

(AWWA) American Water Works Association Practice Test