Valves in Pipeline Systems Quiz

What is the primary function of valves in a pipeline system?

• To increase the temperature of fluids

• To control the flow of fluids

• To change the color of fluids

• To measure the pressure of fluids

Which type of valve is recommended for service conditions that require a valve to be fully open or fully closed?

• Butterfly valve

• Globe valve

• Gate valve

• Check valve

What should gate valves not be used for?

• To regulate temperature

• To throttle the flow of fluid

• To measure fluid density

• To change fluid color

What is one advantage of gate valves?

• They are optimal for sanitary conditions.

• They minimize pressure drop across the valve.

• They are designed for throttling.

• They are easy to repair in place.

Which of the following is a disadvantage of gate valves?

• They have good shut-off characteristics.

• They are suitable for use with slurries.

• They require considerable clearances for installation.

• They are often used in vacuum systems.

What is a common application for gate valves?

• Applications requiring cleanliness.

• Applications involving slurries.

• Applications with high shock loading.

• Applications requiring throttling.

What is a feature of threaded stem gate valves?

• Fast opening and closing.

• Slow opening and closing.

• High resistance to erosion.

• Optimal for sanitary conditions.

What are the four main types of disc design in gate valves?

• Solid wedge disc, Flexible wedge disc, Split wedge disc, Double disc

• Single disc, Double disc, Triple disc, Quad disc

• Solid disc, Liquid disc, Gas disc, Air disc

• Wedge disc, Flat disc, Round disc, Square disc

What is a key advantage of the solid wedge disc valve?

• It is ideal for turbulent flow conditions

• It is suitable for low-pressure conditions only

• It has loose internal parts to allow flexibility

• It is only used in cold water conditions

What problem can occur with the solid wedge disc valve under severe service conditions?

• The valve body may contract more than the disc

• The disc may expand more than the valve body

• The valve may become too flexible

• The disc may become loose