Regular inspection of a valve is important and items which require close scrutiny are the:
a. disc and seat
b. stem and body
c. seat and stem
d. stuffing box and spindle threads
e. hand wheel and packing
Answer: A
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Introduction to Valves
- The advantage of a rising spindle steam stop valve is that:
- In order to ensure safe and continuous operation of a pressure reducing valve, the valve station should have:
- A check valve is a valve that:
- A gate valve:
- The by-pass around a regulating valve should contain a:
- The maximum temperature, which a non-special alloy steel valve can be used for is:
- A valve which has the best capability of handling slurries and fluids with high suspended solids is the:
- Service designation of a valve indicates the:
- In order to extend the life of valve packing we can:
- A valve which requires specific and routine lubrication is the:
- A globe valve:
- All markings on valves shall be:
- The material designation of a valve:
- A valve which often contains a dashpot to cushion the action of the valve is the: