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3A2 > Ch. 4 > Flashcards

Ch. 4 Flashcards

1
Q
  1. CSA B51 establishes that every boiler, pressure vessel, safety valve, relief valve, safety relief valve and rupture disc shall be stamped with an ASME Code Symbol Stamp.
    a. True
    b. False
A

a. True

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2
Q
  1. ASME-approved shops undergo regular intensive inspections by inspectors employed by ASME.
    a. True
    b. False
A

a. True

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2
Q
  1. ASME Boiler and Pressure Vessel Code Section I applies to the Boiler proper and the boiler “external piping”. Super heaters, economizers and other pressure parts connected directly to the boiler.
    a. True
    b. False
A

a. True

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3
Q
  1. B-31.1 Process Piping sets the rules for Pressure or Process Piping in the rest of the plant that is not covered in B-31.1
    a. True
    b. False
A

b. False

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3
Q
  1. B31.3 Power Piping sets boiler piping rules for: materials, design, fabrication, construction, and testing.
    a. True
    b. False
A

b. False

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4
Q
  1. The three methods of welded pipe manufacture are: the electric fusion method, the electric resistance method, or the double submerged-arc method.
    a. True
    b. False
A

a. True

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4
Q
  1. Pick the answer best describing the electric fusion method of pipe manufacturing:
    a. Flat plate having the proper width and thickness and having been heated in an electric furnace to the proper welding temperature is shaped by forming rolls into a tube-like form.
    b. Flat plate is formed cold into a tube shape by rollers and then it passes between welding electrodes which make contact with the pipe on either side of the joint.
    c. Flat plate is formed into a tube shape and placed in an automatic welder with the inside backed by a water-cooled copper shoe. Two electrodes are used which are not in actual contact with the pipe. The welding current passes from one electrode through a powdered flux and across the pipe joint to the other electrode. A welding rod placed just above the pipe joint is thereby melted and deposited in the groove of the pipe joint.
    d. Flat plate rolled into a tube shape with heat and then welded free hand tungsten weld.
A

b. Flat plate is formed cold into a tube shape by rollers and then it passes between welding electrodes which make contact with the pipe on either side of the joint.

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4
Q
  1. The most frequently used materials for power piping systems are:
    1) Inconel 800 H
    2) Alloy steels
    3) Low carbon steels
    4) Galvanized steel
    5) Austenitic stainless steels
    a. 1, 2, 3, 4, 5
    b. 2, 3, 5
    c. 2, 3, 4, 5
    d. 4, 5
    e. 1, 3, 5
A

b. 2, 3, 5

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5
Q
  1. What is ABS pipe commonly used for?
    a. Pure water services and laboratory drainage systems
    b. Potable water systems and pressurized liquid lines for salt water, or crude oil
    c. Water and chemical waste lines
    d. Raw sewage systems only
    e. Hydrocarbon service
A

b. Potable water systems and pressurized liquid lines for salt water, or crude oil

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5
Q
  1. With regards to low carbon steel, graphitization is the breaking down of part of the material into iron and graphite, and failure of the material will occur along lines where there is a concentration of graphite.
    a. True
    b. False
A

a. True

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5
Q
  1. Nonferrous metals are those containing very little or no iron, such as red brass, admiralty brass, aluminum brass, copper silicon and copper nickel alloys.
    a. True
    b. False
A

a. True

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6
Q
  1. PVC pipe is commonly used for ________________.
    a. potable water applications
    b. underground fuel gas distribution
    c. gravity and pressurized drainage systems
    d. instrument air tubing
    e. small bore hydrocarbon piping
A

a. potable water applications

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6
Q
  1. What is Flexible Non-Metallic Pipe or Tubing commonly used for?
    a. Buried flammable and combustible liquid service
    b. Instrumentation tubing
    c. Non-potable process or cooling water service
    d. Small bore process piping
    e. Instrumentation tubing, water and steam piping to sample coolers
A

e. Instrumentation tubing, water and steam piping to sample coolers

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6
Q
  1. The major advantage of plastic pipe is its resistance to corrosive materials and its ease of installation.
    a. True
    b. False
A

a. True

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7
Q
  1. Plastic materials are limited to 1000 kPa and 60°C, for water service. For other services, pressure and temperature limits shall be based on the hazards involved, but in no application shall they exceed 1000 kPa and 60°C.
    a. True
    b. False
A

a. True

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7
Q
  1. A fuel gas line 500 m long is installed in a plant at an ambient temperature of 20°C. When in service the line will carry fuel gas at 250°C. How much will the line increase in length when put into service?
    a. 2.23 m
    b. 1.5 m
    c. 0.25 m
    d. 1.26 m
A

d. 1.26 m

8
Q
  1. A steam line 200 m long is installed in a plant at an ambient temperature of 15°C. When in service the line will carry steam at 400°C. How much will the line increase in length when put into service?
    a. 2.0 m
    b. 0.5 m
    c. 0.847 m
    d. 1.55 m
A

c. 0.847 m

8
Q
  1. There are two broad classifications of plastic piping materials. They are Thermoplastics and Thermosets. Thermoplastics will soften when heated, allowing for shaping and forming. Thermosets will not soften when heated. They will start to decompose if heated too high.
    a. True
    b. False
A

a. True

8
Q
  1. The use of expansion bends for high pressure service is preferred _________________.
    a. because it is cost efficient
    b. because of the no maintenance involved and little likelihood of leaks developing advantage
    c. because expansion bends require a large amount of extra space
    d. because more expansion allowed
    e. there are no moving parts
A

b. because of the no maintenance involved and little likelihood of leaks developing advantage

9
Q
  1. It is very important when commissioning a piping system to be aware of the piping expansion. A very close watch must be kept on piping anchors and expansion joints.
    a. True
    b. False
A

a. True

9
Q
  1. Expansion loops are common on pipe racks with long runs of pipe.
    a. True
    b. False
A

a. True

9
Q
  1. Several different methods are available for controlling pipeline expansion. Two of the most common are ___________ _____ and __________ _____.
    a. underground trenching, solid anchors
    b. expansion bends, expansion joints
    c. different metals, temperature gradients
    d. different procedure, operating parameters
A

b. expansion bends, expansion joints

3A2 (15 decks)

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