Test Questions Flashcards
What is type R steel as converted in the CSA?
-weldable steel
-Quenching and tempering low alloy steel
-atmospheric corrosion resistant steel
-General construction steel
Atmospheric corrosion resistant steel
What are drag lines on a cut an indication of?
A.width of the cut
B.torch inclination
C.cut gap
D.travel speed
Travel speed.
How can a clad material be bonded to a backing material?
A. by banding
B. By reduced dilution.
C.by stress relieving
D.by Co-rolling
Co-rolling
Which material is added to Welding electrode coatings to increase the deposition rate?
A.cellulose
B.rutile
C.iron oxide
D.iron powder
Iron powder
What is a short length of weld used to hold parts in alignment?
A a cover pass
B.a fill pass
C.a root pass
D.a tack weld
A tack weld
Using the metric system if an electrode is 2.5 mm diameter what starting point would be used before fine-tuning the current setting?
A.80 A
B.100 A
C.110 A
D.140 A
100 A
What is a SMAW single pass weld performed with no side to side motion?
A.a stringer bead
B.a stringer padding
C.a stringer fill
D.a stringer paddle
A stringer bead
During the basic oxygen steel making process, what controls the temperature in the vessel?
A.graphite electrodes
B.an electric arc
C.the balance between the pig iron and scrap metal
D.the balance between carbon content and limestone
The balance between the pig iron and scrap metal
What is the most common type of joint used on nickel alloys?
Butt joint
What type of raises can cause retina damage when welding?
A.x-ray
B.infrared
C.ultraviolet
D.gamma rays
Infrared
What is intended to eliminate undercut and produce a finish that is pleasing to the eye?
A cover pass
What type of joint is recommended when welding nickel alloy materials of a thickness more than 10 mm?
V groove butt joint
What gases used in gas welding can produce the highest temperature?
Acetylene
The membership of a joint worksite and safety committee is located in what part of the OHS code?
A.part 11
B.part 13
C.part 18
D.part 28
Part 13
Who is responsible to ensure reasonable steps are taken to prevent bodily harm to a person when performing a task?
Everyone who has authority to direct another person to perform a task
What is the advantage of using a carbide scriber tip?
It maintains a sharp point longer than other scribes
What is compressive strength?
It is the resistance of material to a force tending to deform or fail it by crushing
In the CSA classification system for electrodes, what does the B2 stand for in the description CSA E5518 – B2?
Composition of deposited weld metal
What electrode is used for welding, high strength pipe such as APIX52?
A.E490 – G
B.E4910 – AI
C.ER80S – D2
D.EA1T1 – B2
E4910 – AI
What does the number five refer to in the system of classification adopted by the SAENAISI that uses an index?
A.chromium steels
B.nickel chromium steals
C.tungsten chromium steels
D.plain carbon steels
Chromium steels
What are two ways to prevent carbide precipitation?
A.to limit the carbon level and add stabilizer
B.to limit the silicone level and add stabilizer
C.to add silicone and stabilizer
D.two add chromium and limit the nickel level
To limit the carbon level and add stabilizer
What is a normal arc length when using a SMAW welding machine?
It is equal to the diameter of the core wire
A single basket hitch is used for what kind of loads?
Easy balanced loads
What type of tube is used to operate the regulator gauge indicator needle?
A.regulator
B.vernier
C.diaphragm
D.bourdon
Bourdon
How is current flow in a circuit measured?
Amperage
What is a hazard statement in WHMIS?
A phrase that identifies the nature of the hazard
Which of the following describes production of rimmed steels?
No oxidizers are added and steel has a layer of pure iron on the outside
What is brittleness?
It is the tenancy of a material to fail suddenly by breaking
What is arc blow?
It occurs when the arc flares uncontrollably from side to side
What must a safely screen be used to protect other workers from when Welding?
Arc radiation
At what degrees sling angle will the load on each leg of a two leg sling equal the weight of the load being lifted?
A.90
B.60
C.45
D.30
30
When two slings are being used in parallel with 500 KG weight on it how much weight is put on either sling?
250 KG equal weight on both sides
When using PAC in the 300 amp range what is the recommended shade filter to be used?
Shade 8
When making steel using an electric arc furnace, what controls the temperature in the vessel?
An electric arc between electrodes and scrap
Which material is added to Welding electrodes to provide the gas shield?
Cellulose
What type of filler material produces the correct deposit that assist to avoid cracking when welding high carbon steels?
A.high nitrogen
B.low hydrogen
C.high hydrogen
High hydrogen
How can I combination square that consist of a centre head be used?
To locate the top dead centre of a pipe
What is carbide precipitation Also referred to as?
Weld decay
What does the N stand for when type 304N austenitic steel?
A.non-hardening
B.nickel
C.normal
D.nitrogen
Nitrogen
Where is the degree of counter sink spacing for a plug weld symbol shown?
In line with the weld symbol
Flat position fillet type weld
1F
Where should the filler rod be placed when welding a root bead in the 3G position?
The centre of the filler rod is aligned with the back surface of the plate
What weld characteristics of SMAW on mild steel pipe, refers to weld contour characteristics?
There should be no valley or groove along the toe of the weld and weld should be free from overlap
Prior to welding any joint, which weld should be used to hold the pieces in place?
Tack weld
Which of the following weld symbols is represented by a rectangle drawn on a reference line with an arrow line, touching the centre of the weld joint?
A. Bevel groove
B.groove
C.plug
D.weld all around
Plug
The butt ends of consumable inserts must come together with a maximum gap of how many millimeters?
0.8 mm
What does a fillet weld symbol look like?
Triangle on a dotted line
What does a ET stand for when referring to non-destructive testing and the AWS letter designation?
A. Accented energy test
B.acoustic emissions test
C.Around insignia test
D.assented environmental test
Acoustic emission test
What is the suggested electrode inclination for all the passes when performing a SMAW 2G weld on mild steel pipe?
A.0 to 10°
B. 0 to 20°
C.10 to 20°
D.10 To 15°
0 to 10°
What is true about martensitic stainless steel as a filler metal?
It is good for metal to metal wear
What is not a method to improve penetration in a 1G weld?
Lengthen the arc so the heat covers a broader area
What is the shielding gas used for GTAW on aluminum?
Argon
What is another term for an object line?
Visible line
You can do this
How many joules is in 100 BTUs equivalent to?
A.1470
B.1055
C.105506
D.0.00948
105506
What is the recommended voltage polarity for a E – 4918 3.2 mm SMAW electrode?
A.DC current EP polarity
B.A current EP polarity
C.DC current EN polarity
D.AC/DC current EP polarity
AC/DC current EP polarity
What gas rates are needed to create a proper shield when using helium?
Higher gas rates
Which of the following gases has the lowest flame temperature?
A.acetylene
B.propane
C.natural gas
D.map gas
Propane
What type of practical identification test can be used to distinguish an ER5356 aluminum welding rod?
When dropped on a cement floor makes an echo sound
What type of preparation is possibly one of the widest used for material in the 9.6 mm to 25.4 mm thickness range?
A.Bevel groove
B.U groove
C.V groove
D.Square groove
Vee groove
Which is correct when when referring to stagger Welding?
A.the first world begins a short distance from the end with the direction of travel toward that end
B.the main principle involved in the spreading of heat throughout the joint
C. It is critical to use water to cool and do bursts from front to back on the weld.
D.well deposits are applied in increments on each side of the centre of the joint
The main principle involved is the spreading of heat throughout the joint
What does the E stand for in ER 49S – X with the CAN/CSA – W48–01 classification system of mild steel filler metals?
Electrode
What type of weld can have an excessive concavity condition?
Fillet
What does the G stand for according to the ASME code for Welding positions?
Groove weld
Which of the following abbreviations indicates welded pipe grade B?
A.wp
B.wplo
C.wpb
D.wpg
WPB
Which of the following can be varied during the SMAW process to control downhill progression, root bead penetration on mild steel pipe?
A. Voltage setting.
B.electrotype
C.flux type
D.current setting
Current setting
What is the purpose of the ribs of a skeleton frame?
It acts as backing strips to prevent fall through and to allow the use of higher heat
What do cc gas tungsten arc welding power sources supply?
A Constant current, regardless of how the voltage varies
You’re still doing awesome
Which of the following metals has the highest rate of thermal conductivity?
A.copper
B.brass
C.aluminum
D.steel
Copper
What is thermal shock wear?
It is a cracking or splitting caused by extreme heating and cooling
What is the major element used for electrodes with GTAW plasma arc welding?
Tungsten
You are fabulous
Which weld passes most likely to crack due to rapid cooling?
Root pass
What is an advantage of helium shielding gas used on nickel under machine conditions?
Higher heat input for high welding speed on heavy metal sections
In the GTAW process, which of the following would be the cause of lack of fusion?
Arc length too long
What serious weld fault can a stray arc flash produce?
Metallurgical notch
How is the reference line drawn that forms the base for Welding symbols?
A. at 45° angles
B.at 90° angles
C.vertically
D.horizontally
Horizontally
What is erosion wear?
It is a type of where that washes away or grooves out the metal surface
What is an inverted J shape of consumable insert used for?
For allowing greater joint misalignment
What is a EWTH –1 GTA W electrode?
A.an electrode that contains zirconium oxide
B.it is a tungsten electrode that contains a unspecified amount of rare earth oxide
C.an electrode that contains about 2% Cerium oxide
D.an electrode that does contain levels of radiation, but it is not considered too hazardous
An electrode that does contain levels of radiation, but is not considered to hazardous
What is upset?
A body of metal is heated and is restrained in One Direction. It is then forced to expand more in another direction and will not return to its original shape.
Which is a common metal used for pre-shaped backing bars when back purging is required?
Copper
What can slag conclusion be described as?
Non-metallic solids found in welds
Using the AWS specification system for GTA W tungsten and tungsten alloy electrodes what does the L stand for in EWLA –2?
It indicates the alloy mix
Which shield and gas is used on light gauge stainless steel?
Argon and hydrogen
Which of the following statements regarding orbital welding is false?
A.orbital welding can be semi or fully automatic
B.autogenesis orbital Welding is considered to be semi automatic
C.filler wire may be added to the process if required
D.orbital Welding is generally considered more precise than manual Welding
B
What is the most likely cause of embrittlement and cracking in GTAW Welding?
Incorrect argon, hydrogen shielding mixtures
Which of the following statements is true regarding 5G welds on Pipe?
A.the pipe axis is fitted in the vertical position
B.riding the cop technique demands joint preparation be compatible with nozzle size
C.stop and start each pass at the same location to ensure complete passes
D.begin the weld at the top and work towards the side tack
B
Which is not considered a benefit of aluminum?
A.it is lightweight
B. It looks good.
C. It has moderate strength.
D.it is resistant tocorrosion.
It has moderate strength
Where are dimensions for the size of a weld placed with weld symbols?
To the left of the symbol
Which of the following gases has the highest flame temperature?
Acetylene
Nailing it
What does the abbreviation CIR stand for?
Circumference
A drawing shown the pitch of a roof as 6:18 and the run as 17 feet. What is the total rise?
A – 9.3
B – 8.4
C – 5.6
D – 1.2
5.6
A 6 m ladder is leaned against the wall so that the bottom of the ladder is 3 m from the wall. The ladder will reach how many metres up the wall?
5.2 many metres of the wall
What type of current is most often used in the GMAW process?
DCEP
The scale on a drawing is 1:5. The scale length of a shaft is 25 mm long. The actual length of the shaft will be how many millimetres long?
125 mm long
What inclination must be used to avoid contamination of the weld zone when welding aluminum?
Forehand
The middle section of an Ibeam is called what?
Web
What does the abbreviation BCD stand for?
Bolt circuit diameter
Where should bootlegs that are installed on a horizontal pressure vessel be located?
Near the calm end
The scale of a drawing is 1:5. The scale length of a shaft is 1 1/4 inch long. The actual length of the shaft will be how many inches long?
6 1/4 inches long
What are SAW electrode wires available in sizes of?
1.6 to 6.4 mm
How are regulators classified?
By their service and type
When using GMAW on aluminum, which is the recommended way to remove traces of moisture prior to Welding?
Light preheat
What does the first digit identify using the aluminum association of America numbering system?
The alloy group
What will a slope control on the power source used with gas metal arc welding control?
The short circuit current
What is the common length in millimetres for arrowhead on a blueprint?
3–4
How should the liner used on a GMAW system be cleaned?
By blowing it out with compressed air
Which of the following methods describes transferring molten aluminum from a crucible into a mould?
A.sand chasing
B.permanent mould casting
C.centrifugal casting
D.Die casting
Centrifugal casting
What does the H2 refer to with non-heat treatable wrought alloys?
Work hardening and partially annealed
The NPS of a 20 inch steel pipe would have an outside diameter of how many inches?
20 inches
What is side a using the Pythagorean theorem if side C equals 12 and side B equals 8?side a is the hypotenuse)
14.4
In the GTAW process, what would be the cause of overheating Welding cables
Cables too long
What is anodizing?
It is an electro chemical process
What does the 2G position with steel pipe describe?
A fixed vertical position
(A 2G welding position is a horizontal groove weld where the weld joint is vertical. It’s a common position used in structural applications and pipeline welding)
A stack of 35 pieces of steel weighs 1800 pounds a stack of 43 pieces of the same material will weigh how many pounds?
2211 pounds
What does the letter H 16 refer to with non-heat treatable wrought alloys?
Three quarters hard.
What does the number 1 in E4918 – X mean?
All positions except vertical down
Welding position of useability
What does the number 49 in E4918 – X represent?
Minimum tensile strength of deposited weld metal in megapascal(MPA)
What does the number 8 represent in E4918 – X?
Electrode covering type and type of current
What does the number 4 mean in E7048 – X?
Flat and vertical down only
What does the number 2 represent in E7028 – X?
Flat and horizontal fillets
Which electrode types contain basic flux?
EXX15, 16, 18, 28, 48
Which electrodes contain cellulosic flux?
EXX10
EXX11
Which electrodes contain rutile flux?
EXX12, 13, 14, 24
Which electrode contains iron oxide flux?
EXX22
EXX27
Electrodes E 6010, E 7015, are welded with what current?
DCEP
Electrodes E 6011, E 7018, E 6022, E 7028 can be welded with what current?
AC or DCEP
Electrodes E 6013, E 7014, E 6022,E 7024, E 6027, E 6027, E 7048 can all be welded with what type of current?
AC, DCEP or DCEN
Electrodes E 6012, are welded with what type of current
AC or DCEN
