Equipment I

1. ________ valves are used to stop and start flow.

• Isolation
• Throttle
• Check
• Relief

2. A __________ actuator requires more time to re-position the valve.

• double-acting hydraulic
• single-acting pneumatic
• solenoid
• motor operated

3. __________ actuators use an uncompressible liquid to position a valve.

• Pneumatic
• Hydraulic
• Electric