Exam 2: Valves

A recessed area specially designed to receive packing.

The outlet is larger on a:

The difference between the initial lift-off pressure and the pressure of the fully open position in a relief valve is called:

The body of the valve contains information referred to as:

Ball valves are frequently used for throttling service.

Butterfly valves have ________ throttling characteristics.

The stem on a gate valve comes in two designs:

The only check valve that can be manually adjusted by a technician is:

Globe valves operate efficiently in:

The flow control element and seat is called:

Industrial air is used primarily to operate:

Select the group of quarter turn valves only:

A term used to describe temperature changes and pipe expansion is:

A specially designed material that prevents leakage from the bonnet yet allows the hand wheel to turn evenly:

Actuators come in three basic designs:

The typical globe valve has all of the following components except:

An angle valve is classified as a:

The typical gate valve has all of the following components except:

A check valve is:

A control loop is: