Emea Static Sealing Training - Level Test
.
- 1.All packing rings should be installed one ring at a time.
- A.
True
- B.
False
- 2.What is the calculation for determining the proper packing cross section for installation?
- A.
C.S. = (stuffing box bore - shaft diameter) / 4
- B.
C.S. = (shaft diameter - stuffing box bore) / 2
- C.
C.S. = (shaft diameter + stuffing box bore) / 2
- D.
C.S. = (stuffing box bore - shaft diameter) / 2
- 3.Graphite is less noble (more anodic) then Zinc.
- A.
True
- B.
False
- 4.What are all requirements for compression packing?
- A.
Flexibility, wear resistance, strength, porous, abrasive
- B.
Flexibility, wear resistance, strength, chemical resistance, high friction
- C.
Flexibility, wear resistance, strength, chemical resistance, low friction
- D.
Flexibility, wear resistance, strength, chemical resistance, low thermal conductivity
- 5.Chesterton style 1600 is an expanded graphite packing reinforced with
- A.
Carbon Yarn
- B.
Stainless Steel Wire
- C.
Stainless Steel Foil
- D.
Inconel Wire
- 6.Which of the following Chesterton packings have an active corrosion inhibitor?
- A.
Style 5300
- B.
Style 1724
- C.
Style 1622
- D.
None of the above
- 7.Which Chesterton Packing would you select for the following application:Block Valve, Steam, 250°C
- A.
Style 1601
- B.
Style 1622
- C.
Style 1724
- D.
Style 1730
- 8.Which of the following standards describes a test an qualification procedure for valves for fugitive emissions?
- A.
ISO 15848-1
- B.
API 622
- C.
API 589
- D.
EN 1514-1
- 9.PTFE is used widely as a packing and gasket material because of its:
- A.
Temperature Resistance
- B.
Mechanical Properties
- C.
Strenght
- D.
Chemical Resistance
- 10.Which of the following is a 45 degree angle cut which is typically used for valve packings in order to exclude visual leakage?
- A.
A skive joint
- B.
Both a skive joint and a butt joint.
- C.
A butt joint
- D.
A pipe joint
- 11.Gland pressure will be distributed efficiently up to how many rings?
- A.
1-2 rings
- B.
4-6 rings
- C.
10-12 rings
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