Irrigation Review - Valves

Irrigation Review - Valves How is pressure, in an electric control valve, released off the upper chamber? Through the intake port Through the bypass port Through the bonnet Through the flow control What happens when an electrical current charges the solenoid? The plunger goes up The plunger goes down The inlet port opens The bleed screw opens What is the purpose of the flow control knob? To manually open and close the valve To release pressure off the upper chamber To control the plunger in the solenoid To open the intake port What would cause the sprinklers to stay on after the valve is shut off (assuming it’s the valve)? The plunger is stuck open The plunger is stuck closed There is a broken wire The bypass port is plugged What is the purpose of the bleed screw? To manually build pressure in the upper chamber To manually turn off the system To manually pull up the plunger To manually turn on the sprinklers What would happen to a valve if you got debris in the bypass port? The diaphragm would pop up You could not relieve pressure on the upper chamber Pressure would build and the valve would burst open The intake port would also be plugged Where is the plunger in an electric control valve? In the outlet In the solenoid Attached to the bonnet, by the flow control Inside the flow control knob How does the water that flows to the sprinklers move through the valve? Through the intake port and out the outlet Through the inlet and out the bypass port Through the inlet and out the outlet under the diaphragm Through the intake port and out the bypass port What is the advantage of an internal manual bleed? Which manual valve is used for larger installations? Gate Butterfly Ball Which manual valve has a circular handle? Gate Butterfly Ball diaphragm