Valve Design and Functions Quiz pt1

What is the function of the bonnet in a valve?

• Covers a pneumatic air discharge port

• Allows fluid flow through the valve body

• Contains all stationary and working parts

• Connects the valve operator to the movable valve disk assembly

Which type of control valve has only one valve disk and one seat?

• Four-Way Valve

• Double-Seated Control Valve

• Three-Way Valve

• Single-Seated Control Valve

What is the main function of a needle valve?

• To allow flow in only one direction

• To divert or mix flowing fluids

• To cover a pneumatic air discharge port

• To regulate fluid flow

Which type of valve is used to reverse refrigerant flow through a refrigeration system?

• One-Way Valve

• Two-Way Valve

• Three-Way Valve

• Four-Way Valve

What is the purpose of a swing check valve in a refrigeration system?

• To regulate fluid flow

• To maintain a maximum system pressure

• To create difference in pressure with vessels

• To prevent reverse refrigerant flow

Which type of valve is used to stop and start flow or to regulate flow?

• Gate Type Two-Way Valve

• Ball Type Two-Way Valve

• Globe Type Two-Way Valve

• Angle Type Two-Way Valve

What is the main function of a three-way valve?

• To divert or mix flowing fluids

• To allow flow in only one direction

• To manage refrigerant flow

• To reverse refrigerant flow

What is the purpose of a service valve in a refrigeration system?

• To divert or mix flowing fluids

• To create difference in pressure with vessels

• To isolate components during service procedures

• To prevent reverse refrigerant flow

What is the action of a service valve when it is mid seated on the suction side?

• Flow from compressor at C to discharge line at D

• Flow from suction line at D to compressor at C

• System OFF

• System's refrigerant charge trapped from the compressor outlet to the condenser metering device and evaporator and stopped at D

What is the action of a service valve when it is back seated on the discharge side?

• System OFF

• System's refrigerant charge trapped from the compressor outlet to the condenser metering device and evaporator and stopped at D

• Flow from compressor at C to discharge line at D

• Flow from suction line at D to compressor at C