What type of valve is a flow-regulating device that uses a flow-control element shaped like a hollowed out ball, attached to an external handle, to increase or decrease flow?

Question

Quizplus · Accepted Answer

A) Correct. A ball valve is a flow-regulating device that uses a flow-control element shaped like a hollowed out ball, attached to an external handle, to increase or decrease flow.
B) Incorrect. A plug valve is a flow-regulating device that uses a flow-control element shaped like a hollowed-out plug, attached to an external handle, to increase or decrease flow.
C) Incorrect. A butterfly valve is a flow-regulating device that uses a disc-shaped flow-control element to increase or decrease flow.
D) Incorrect. A check valve allows flow only in one direction.

What Type of Valve Is a Flow-Regulating Device That Uses