Plumbing Materials Quiz slide 23-46

What type of valve controls fluid flow by a ball that fits tightly against a resilient seat in the valve body?

• Gate valve

• Globe valve

• Ball valve

• Butterfly valve

Which type of valve prevents backflow through the use of a hinged disk within the valve body?

• Lift check valve

• Gate valve

• Swing check valve

• Butterfly valve

What type of valve is used to measure large and constant volumes of water in buildings?

• Pressure-reducing valve

• Compound water meter

• Turbine water meter

• Disc water meter

What type of valve is used to measure water flow through small water services?

• Pressure-reducing valve

• Compound water meter

• Turbine water meter

• Disc water meter

What type of valve is used to convert high and/or fluctuating inlet water pressure to a lower and constant outlet pressure?

• Globe valve

• Pressure-reducing valve

• Gate valve

• Butterfly valve

What type of valve is used to prevent backflow by using a disk that moves vertically within the valve body?

• Gate valve

• Swing check valve

• Butterfly valve

• Lift check valve

What type of valve is used to act as a check valve to permit drain flow in one direction only?

• Knife valve

• Combination backwater valve

• Core cock

• Flapper-type backwater valve

What type of valve is used to offer both manual and automatic protection against a backwater condition?

• Core cock

• Knife valve

• Combination backwater valve

• Flapper-type backwater valve

What type of valve is used to automatically block the waste drainage system as backwater pressure increases?

• Flapper-type backwater valve

• Core cock

• Combination backwater valve

• Knife valve

What type of valve is used to relieve temperature and pressure, or pressure only?

• Butterfly valve

• Relief valve

• Globe valve

• Gate valve