Book 6 Flashcards
(100 cards)
In the process of making iron, limestone is added to:
Select one:
a.
Pig iron moulds
b.
The iron ore in the moulds
c.
The blast furnace in order to form slag
d.
Make the pig iron more malleable
The blast furnace in order to form slag
Which of the following is NOT part of a typical oxyacetylene outfit?
a.
An oxygen cylinder and an acetylene cylinder
b.
A hose to mix gas from the cylinders
c.
A welding torch
d.
A cutting torch
A hose to mix gas from the cylinders
What is a nozzle used for on a pressure vessel shell?
Select one:
a.
It is used to connect feed water piping to the vessel
b.
It is used to attach safety valves to the vessel
c.
it is used to attach fittings to the vessel
d.
It is used to attach gauges to the vessel
it is used to attach fittings to the vessel
When a condition in a weld has been observed and it has been compared against a standard, what then happens?
Select one:
a.
a judgement must be made on whether it is a defect or not
b.
it must be re-tested
c.
the weld must be re-done
d.
the weld is rejected
a judgement must be made on whether it is a defect or not
If a welding electrode has the identifying number “E6016”, what does the “1” represent.
Select one:
a.
The welding position
b.
AC or DC with medium penetration
c.
DC reverse polarity with medium penetration
d.
AC with deep penetration
The welding position
What kind of effect does the transducer employ in ultrasonic testing to vibrate a quartz wafer?
a.
Electrostatic
b.
Fusion
c.
Sonic
d.
Pezoelectric
Pezoelectric
What is the Brinell Hardness Number (BHN) equal to?
a.
Load (kg)/Area of mark (mm2)
b.
Area of mark (mm2)/Load (kg)
c.
Load/Area of mark
d.
Area of mark/Load
Feedback
Load (kg)/Area of mark (mm2)
Which of the following would be used to reduce the temperature gradient in order to attain a slower cooling rate of a weld?
Select one:
a.
air cooling the weld
b.
preheating the heat affected zone
c.
post-heat the welded area
d.
quenching the component in water
preheating the heat affected zone
When is a visual inspection done on a weld?
Select one:
a.
before welding
b.
before, during, and after welding
c.
during welding
d.
before and after welding
before, during, and after welding
When conducting a weld inspection, “indications” in the weld:
Select one:
a.
may be acceptable depending on the circumstances.
b.
are found according to the methods laid out in ASME Section VIII
c.
must cause a weld to be rejected
d.
can always be found during a visual inspection
may be acceptable depending on the circumstances.
What type of metal can be cut with an oxy-acetylene cutting torch?
Select one:
a.
aluminum
b.
brass
c.
stainless steel
d.
carbon steel
carbon steel
In an Ultrasonic Test, the ultrasonic vibrations are converted to an electrical pulse in/by:
Select one:
a.
an oscilloscope
b.
a transducer
c.
a duplex converter
d.
a transmitter
a transducer
Before welding on a pressure vessel, a qualified pressure welder must:
Select one:
a.
supervised by a safety codes officer
b.
be employed by the company which owns the pressure vessel
c.
pass a welding performance test
d.
be registered with the Canadian Standards Association
pass a welding performance test
Of the following, which is NOT an advantage of the visual method of non-destructive testing?
Select one:
a.
It is relatively inexpensive
b.
It can detect sub-surface discontinuities
c.
It is easy to apply
d.
it is quick
It can detect sub-surface discontinuities
How can the mechanical properties of a metal be restored after welding?
Select one:
a.
carry out a post weld heat treatment
b.
carry out a post-heat stress treatment and quench
c.
after the weld is completed, allow the metal to cool quickly and then raise the temperature again
d.
quench the weld
carry out a post weld heat treatment
When carrying out a radiographic test on a weld, photographic film is located on one side of the test piece. What is put on the opposite side to record the test?
a.
An image quality indicator
b.
A radiation source
c.
A developer
d.
A penetrameter
A radiation source
Soldering and brazing are:
Select one:
a.
both suitable for boiler construction
b.
fusion welding processes
c.
adhesive processes
d.
low temperature processes
adhesive processes
A Brinell Tester forces a ball into a steel test coupon with a standard 3000 kg load. What is the standard load for non-ferrous metals?
a.
500 kg
b.
5 kg
c.
5000 kg
d.
50 kg
500 kg
An element that increases creep strength in metal is:
Select one:
a.
Nickel
b.
Vanadium
c.
Molybdenum
d.
Manganese
Molybdenum
Brass and bronze are alloys of:
Select one:
a.
lead
b.
aluminum
c.
copper
d.
iron
copper
ASME Section 1, Paragraph PW-39 requires newly constructed boiler shells to be placed in a furnace and heated above what temperature?
a.
595°C
b.
395°C
c.
495°C
d.
295°C
595°C
If the carbon content in a metal is greater than 2.0%, what is the resulting alloy?
a.
Wrought iron
b.
Pig iron
c.
Stainless steel
d.
Cast iron
Cast iron
With regards to a form of NDE, a transducer is part of the equipment required for a/an:
Select one:
a.
Penetrant test
b.
Ultrasonic test
c.
Eddy Current test
d.
Radiographic test
Ultrasonic test
When chromium is added to alloy steel, it:
Select one:
a.
Increases toughness
b.
Increases ductility
c.
Increases hardness
d.
Improves machinability
Increases hardness