3A2 Chapter 04

Question 1

CSA B51 establishes that every Boiler, pressure vessel, safety valve, relief valve, safety relief valve and future disc shall be stamped with an ASME code symbol stamp

A) true
B) false

Answer 1

A) true

Question 2

ASME approved shops undergo regular intensive inspections by inspectors employed by ASME

A) true
B) false

Answer 2

A) true

Question 3

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

Answer 3

A) true

Question 4

B31.3 power piping sets Boiler piping rules for: materials, design, fabrication, construction, and testing

A) true
B) false

Answer 4

B) false

Question 5

B31.1 process piping sets the rules for pressure or process piping in the rest of the plant that is not covered in B31.1

A) true
B) false

Answer 5

B) false

Question 6

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

Answer 6

A) true

Question 7

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 forms 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 welded 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

Answer 7

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 forms rolls into a tube like form

Question 8

The most frequently used materials for power piping systems are:

1) inconal 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

Answer 8

B) 2,3,5

Question 9

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

Answer 9

A) true

Question 10

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

Answer 10

A) true

Question 11

The major advantage of plastic pipe is its resistance to corrosive materials and its ease of installation

A) true
B) false

Answer 11

A) true

Question 12

Plastic materials are limited to 1000 kPa and 60 degrees 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 degrees C

A) true
B) false

Answer 12

A) true

Question 13

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

Answer 13

A) potable water applications

Question 14

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

Answer 14

B) potable water systems and pressurized liquid lines for salt water, or crude oil

Question 15

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

Answer 15

A) true

Question 16

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 g to sample coolers

Answer 16

E) instrumentation tubing, water and steam piping to sample coolers

Question 17

A steam line 200 m level not is installed in a plant at an ambient temperature of 15 degrees C. When in service the line will carry steam at 400 degrees 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

Answer 17

C) 0.847 m

Question 18

A fuel gas line 500 m is installed in a plant at an ambient temperature of 20 degrees C. When in service the line will carry fuel gas at 250 degrees 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

Answer 18

D) 1.26 m

Question 19

It is very Important when commissioning a piping system to be aware of the piping expansion. A very close watch must be kept on pipe anchors and expansion joints

A) true
B) false

Answer 19

A) true

Question 20

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

Answer 20

B) because of the no maintenance involved and little likelihood of leaks developing advantage

Question 21

Expansion loops are common on pipe racks with long runs of pipe

A) true
B) false

Answer 21

A) true

Question 22

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

Answer 22

B) expansion bends, expansion joints

Question 23

The change in length of the pipe due to the change from out of service temperature to in service temperature may be calculated by considering the coefficient of linear expansion of the pipe material and the length of the pipe

A) true
B) false

Answer 23

A) true