exam 1 Flashcards
(120 cards)
1
Q
The _____ of a material is the weight per unit volume.
A) mass
B) hardness
C) brittleness
D) density
A
D) density
2
Q
Which of the following is a forehand welding technique most suited for?
A) Tacking.
B) Root pass.
C) Fill pass
D)Cover pass
A
D)Cover pass
3
Q
- What is impact strength?
A) It is the resistance of material to withstand a sharp high velocity blow.
B) It is usually measured with a punch and die set.
C) It is the ultimate pull a material will stand without fracture.
D) It is the stress point at which permanent deformation takes place.
A
A) It is the resistance of material to withstand a sharp high velocity blow.
4
Q
The overhead position for a weld is know as:
A) 1G
B)2G
C)4G
D)2F
A
C) 4G
5
Q
What carbon class would lathe tools be made ofl
A)Low.
B) Mild steel.
C) High.
D) Very high.
A
D) Very high.
6
Q
A safety screen must be used to protect other workers from ________ when you are welding.
A) unpleasant fumes
B) extreme noise
C) copying your work
D) arc radiation
A
D) arc radiation
7
Q
It is critical that you check the ________ rating of a grinder when replacing the grinding wheel.
A) amperage
B) voltage
C) temperature
D) revolution per minute
A
D) revolution per minute
8
Q
The main parts of a drill bit are the:
A) body, point and chuck .
B) flute, shank and web.
C) point, flute and tang
D) shank, body and point.
A
D) shank, body and point.
9
Q
When comparing the AWS and the CSA classification systems for mild steel electrodes, the welding positions for each of the systems are
the same.
A) True
B) False
A
A) True
10
Q
When hoisting the following load, what is the tension on the slings marked “a”?
A) 500 kg
B) 250 kg
C) 150 kg
D) 100 kg
A
A) 500 kg
11
Q
Which of the following materials would not be used for cryogenic applications?
A) Nichrome alloys
B) Monel alloys
C) Aluminum
D) Copper alloys
A
A) Nichrome alloys
12
Q
A shock load can be avoided by:
A) removing slack and jerking as you start to lift.
B) suddenly stopping the lifting process.
C) lifting the load quickly.
D) am immediate change of direction.
A
A) removing slack and jerking as you start to lift.
13
Q
What type of label is required on your footwear if you are required to have protection to withstand an impact of up to 90 joules?
A) A green triangle.
B) A yellow triangle.
C) A blue triangle.
A
B) A yellow triangle.
14
Q
When acetylene is combined with oxygen it produces a short flame with the hottest part of the flame being at the:
A) end of the outer cone.
B) the start of the flame.
C) center of the flame.
D) end of the inner cone.
A
D) end of the inner cone.
15
Q
A combination square consists of a centre head that can be used to:
A) layout various angles on iron.
B) mark lines at a 45 degree angle.
C) locate the top dead centre of a pipe .
D) layout lines that are 90 degrees apart.
A
C) locate the top dead centre of a pipe.
16
Q
The cuts that are generally available for files are:
A) curved.
B) rasp.
C) double.
D) all of the above
A
D) all of the above
17
Q
Chromium steels:
A) are used for tubing in highly stressed aircraft parts.
B) have increased strength and brittleness.
C) to some extent have atmospheric corrosion resistance.
D) are commonly used for low pressure piping at elevated temperatures.
A
C) to some extent have atmospheric corrosion resistance.
18
Q
If acetylene gas is to be stored at high pressure it is dissolved in:
A) charcoal.
B) portland cement.
C) monolithic filler.
D) acetone.
A
D) acetone.
19
Q
Type grade ____ chain is the only chain that can be used for overhead lifting.
A)8
B)6
C)4
D)3
A
A)8
20
Q
When following the AWS specification A5.30, the letters “IN” designate a consumable insert
A)True
B) False
A
A) True
21
Q
When using a heavy duty cutting torch for cutting the oxygen needle value would be used to adJust the:
A) length of the preheat flame.
B) cutting stream pressure.
C) preheat cones.
D) the fuel consumption.
A
C) preheat cones.
22
Q
The inclination recommendations for overhead welding are the same as:
A) flat position welding.
B) vertical position welding.
C) backhand welding.
D) forehand welding.
A
A) flat position welding.
23
Q
What product does AISA write specifications for?
A) Structural steel plate and shapes.
B) Steel sheet stock.
C) Steel bar stock.
A
B) Steel sheet stock.
24
Q
What carbon class would crankshafts or scraper blades be made of?
A)Low.
B) Mild steel.
C) Very high.
D) High.
A
D) High.
25
When welding chromium-free nickel-base alloys, the problem of porosity can be caused by:
A) nitrogen
B) argon
C) carbon dioxide
D) hydrogen
A) nitrogen
26
What is the best type of hitch to use if you were to be lifting a bundle of pipes?
A) A single basket hitch.
B) A double basket hitch.
C) A single choker hitch.
D) A double choker hitch.
D) A double choker hitch.
27
Which Part of the OH&S Code describes the requirements for PPE?
A) 16
B) 18
C)24
D) 35
B) 18
28
On the flip up visor of a welding helmet a gasket is placed between the outer glass and the filter plate to prevent:
A) the filter from shifting.
B) heat from cracking the filter plate.
C) the lens from getting covered in smoke.
0 D) discoloration of the lens.
B) heat from cracking the filter plate.
29
A container that has contained flammable materials must be properly cleaned before you can weld it. To properly clean the container you
can:
A) thoroughly steam it.
B) boil it in a caustic solution.
C) purge it with inert gas.
D) all of the above.
D) all of the above.
30
As the carbon content in steel increases, the strength and hardness:
A) increase.
B) decrease.
C) stay the same.
A) increase.
31
A short arc length promotes deeper penetration of the weld.
A) True
B) False
A) True
32
The flat position for a weld is known as:
A) lG
B)2G
C)4G
D)2F
A) lG
33
What does the letter "A" refer to in the system of electrode classification established by AWS specification A5.5 and CSA standard
W48.3?
A) Military specifications electrodes.
B) Carbon molybdenum electrodes.
C) Nickel steel electrodes.
D) Chromium molybdenum electrodes.
B) Carbon molybdenum electrodes.
34
Which of the following cast iron types is formed by an annealing process that causes carbon to form into rounded particles?
A) Gray cast.
B) White cast.
C) Malleable cast.
D) Nodular cast.
C) Malleable cast.
35
How do you know when a synthetic web sling should be destroyed?
A) When it is completely discolored.
B) When it has been used more than the number of times specified on the label.
C) When the red core is exposed.
D) When it has started to stretch.
C) When the red core is exposed.
36
As covered in the CSA, type Q steel is:
A) weldable notch tough steel.
B) quenched and tempered low alloy steel plate .
C) atmospheric corrosion resistant steel.
D) general construction steel.
B) quenched and tempered low alloy steel plate .
37
According to Occupational Health and Safety regulations ____ ppm of hydrogen sulphide is the maximum exposure that a welder can
be exposed to for an eight hour day .
A) 5
B) 10
C) 15
D)20
B) 10
38
What is one of the techniques used in SMAW to restart the weld?
A) Reverse T
B) Reverse L
C) Pickling
D) Bevelling
A) Reverse T
39
Which of the following alloys is not considered a nickel base alloy?
A) Nimonic
B) lncoloy
C) Hastelloy
D) Monet
B) lncoloy
40
A description of the type of filler material to be used on a project would be found:
A) in the specifications
B) on the electrical drawings
C) on the architectural drawings
D) on the landscape drawings
A) in the specifications
41
Which welding process using the AWS letter designation represents Brazing using a torch?
A)TB
B)OAW
C)RSW
D)SW
A)TB
| Torch Brazing
42
Solid wire for hot and cold wire GTAW, is available in sizes from 0.5mm to ____ mm.
A) 6.4
B) 5.8
C) 4.2
D)3.2
D) 3.2
43
Which of the following methods is NOT used for preparation of GTAW electrodes?
A) Chemical compounds.
B) Grinding.
C) Electric arc.
D) Hammering.
D) Hammering.
44
Using the AWS A5.21 classification, what docs the "R" stand for in RWC2-20/30?
A) The mesh size of the tungsten carbide granules.
B) Filler metal is in a composite tubular form.
C) Tungsten carbide as the principle alloying element.
D) A welding rod.
D) A welding rod.
45
Which of the following indicates a horizontal position fillet type weld?
A) lG
B) IF
C)2G
D)2F
D) 2F
46
Referring to the figure, which of the following weld symbols represent a double bevel butt joint?
A) #6
B) #5
C) #4
D) #3
E) #2
F) #1
C) #4
47
The sparks produced from a spark test for high carbon steel would appear:
A) bright, long, straight, and yellowish in color.
B) darker yellow orange and tend to burst and branch off.
C) as many bursts that are red colored near the grinder and orange yellow further out.
B) darker yellow orange and tend to burst and branch off.
48
What term describes a measure of the quantity or amount of energy?
A) Degrees
B) Ambient
C) Temperature
D) Heat
D) Heat
49
Which of the following is NOT a method to improve penetration in a 1G weld?
A) Slow travel speed to increase puddle fluidity and allow more time for gravity to work.
B) Lengthen the arc so the heat covers a broader area
C) Widen the gap of the joint.
D) Reduce the angle of the electrode to direct heat at puddle.
B) Lengthen the arc so the heat covers a broader area
50
In the CAN/CSA-ISO 14341 classification system, what do the last 3 categories indicate (i.e. using "B-G 49A 3 A G2", what do the 3, A
and G2 indicate)?
A) Tensile strength; Electrode analysis; Type of welding.
B) Temperature of impact test; Shielding gas to be used; Electrode analysis.
C) Shielding gas to be used; Temperature of impact test; Type of welding.
D) Electrode type; Shielding gas used; Welding type.
B) Temperature of impact test; Shielding gas to be used; Electrode analysis.
51
What is the recommended amperage range for a
E-55010-G 4.8 mm electrode?
A) 50-80 Amps
B) 100 - 120 Amps
C) 120- 150 Amps
D) 150- 210 Amps
D) 150- 210 Amps
52
When preparing pipe (GTAW) for groove welds, what bevel is used, generally?
A) 15° -22.5°
B) 20° - 27.5°
C) 25° - 32.5°
D) 30° - 37.5°
D) 30° - 37.5°
53
What unit is used to express temperature?
A) Calorie
B) Fahrenheit
C) Degree
D)Btu
B) Fahrenheit
54
In the GTAW process, which of the following would be the cause of lack of fusion?
A) Arc length too long .
B) Voltage setting too high.
C) Weld bead too small.
D) Overheated electrode.
A) Arc length too long .
55
Cold wire GTAW is very similar to hot wire GTAW, except that the filler wire is not energized as it enters the weld zone.
A) True
B) False
A) True
56
With back step welding:
A) the first weld begins a short distance from the end with the direction of travel toward that end .
B) the main principle involved is the spreading of heat throughout the Joint.
C) weld deposits are applied in increments on each side of the centre of the joint.
A) the first weld begins a short distance from the end with the direction of travel toward that end .
57
What is an inverted r . ectanguJar shape of consumable insert used for?
A) For pipe sizes greater than 50mm.
B) For allowing greater joint misalignmet
C) For joining VEE or U groove designs butt joints.
A) For pipe sizes greater than 50mm.
58
Which of the following is NOT generally a cause of suck-back during a GTAW root pass?
A) Current settings which arc too high.
B) An arc length which is too short
C) Travel speed is too slow.
D) Filler rod not deep enough into backside of groove.
B) An arc length which is too short
59
Referring to the figure, which location would show the grove angle information on a weling symbol?
A) 12
B) 6
C) 3
D) 2
D) 2
60
Which of the following abbreviations used on a drawing indicates bottom of pipe?
A) BOE
B) BOT
C) BOP
D) BLD
C) BOP
61
In the alloy ERCu, what docs the Cu stand for?
A) Cutt-able.
B) Copper.
C) Corrosion unaffected.
B) Copper.
62
What is the recommended voltage polarity for a
E-4310 3.2 mm SMAW electrode?
A) DC current EP polarity
B) AC current EP polarity
C) DC current EN polarity
D) AC/DC current EP polarity
A) DC current EP polarity
63
What is a characteristic of a 400 series stainless steel?
A) It has non magnetic properties.
B) It has austenitic micro structure.
C) It is very resistant to corrosion at high temperatures .
D) It has very low impact toughness.
A) It has non magnetic properties.
64
With respect to non-destructive examination symbols, what does the letter "P" in "PT" refer to?
A) Penetrant
B) Penetrate
C) Peroxide
D) Pressure
A) Penetrant
65
Which of the following is an advantage of GTAW?
A) It is not suitable for outdoors.
B) The heat source and filler metal can be controlled separately.
C) Excellent eyesight is required.
D) Deposition rates are low.
B) The heat source and filler metal can be controlled separately.
66
Referring to the figure, which of the following is a flare bevel weld symbol?
A) #4
B) #3
C) #2
D) #1
B) #3
67
Refer to the information in question 66.
Referring to the figure, which of the followmg is a fillet weld symbol?
A) #4
B) #3
C) #2
D) #1
C) #2
68
Which shielding gas is most often used for back-purging of stainless steel pipe?
A) Nitrogen
B) Argon
C) Oxygen
D) Helium
B) Argon
69
The length of the weld to be tested as indicated in the diagram is ____ mm.
A) 8
B) 10
C) 18
D) 28
A) 8
70
What is meant by the 'tie-in' points?
A) The point where crater filling becomes flush with the original material.
B) The leading edge of the puddle as it progresses forward.
C) The point where the filler rod feeds into the front of the puddle.
D) The point where the weld starts and stops.
D) The point where the weld starts and stops.
71
In the GTAW process, which of the following would be the cause of an overheated torch and cables?
A) Pinched or clogged cooling lines.
B) Failed gas valve solenoid.
C) Joint too narrow.
D) Inadequate shielding gas flow.
A) Pinched or clogged cooling lines.
72
How could it be determined which size of gas nozzle to use for GTAW on aluminum?
A) Always consult the AWS classification manual.
B) A larger nozzle is always better to expanding the gas shielding area.
C) Use the smallest nozzle whose lip does not melt in the arc heat.
D) It is personal preference based on experience and welding style .
C) Use the smallest nozzle whose lip does not melt in the arc heat.
73
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```
In the GTAW process, which of the following would be the cause of high frequency flows but no welding current?
A) Poor work lead connections.
B) Loose or broken wire to solenoid
C) Cables too long.
D) Badly worn or dirty collet.
A) Poor work lead connections.
74
Whith respect to welding symbols, more than one arrow line may be used provided that all arrow lines originate from a different end of the reference point.
A)True
B) False
B) False
75
What is a weave bead?
A) It is a procedure to minimize crater cracks.
B) It is a weld of short length used to hold parts in alignment
C) It is a technique used to build up wear surfaces.
D) It is a weld made with side motion as well as in the direction of travel.
D) It is a weld made with side motion as well as in the direction of travel.
76
Using the AISI classification standard, which of the following numbers identifies a stainless steel with nickel and manganese added?
A) 400
B) 300
C) 200
C) 200
77
Gasses designed for GTAW generally contain oxidizing gases and therefore, are not suitable for GMAW.
A) True
B) False
B) False
78
What is the recommended voltage polarity for a
E-41010 3.2 mm SMAW electrode?
A) DC current EP polarity
B) AC current EP polarity
C) DC current EN polarity
D) AC/DC current EP polarity
A) DC current EP polarity
79
What is the recommended amperage range for a
E-41010 3.2 mm electrode?
A) 60-100Amps
B) 80- 100 Amps
C) 65 - 140 Amps
D) 90- 110 Amps
C) 65 - 140 Amps
80
Using the AISI classification standard, which of the following numbers identifies a stainless steel known as straight chrome?
A) 400
B) 300
C) 200
A) 400
81
What is the colour code of the EWTh-2 GTAW electrode?
A) Orange
B) Yellow
C) Red
D) Black
C) Red
82
Using the flame test, the molten puddle from gray cast iron will appear:
A) reddish white.
B) as a shiny surface directly under the flame.
C) the same color as the unheated metal.
D) bright luminescent.
A) reddish white.
83
As a general rule, the maximum material thickness for a single-welded square groove weld is ____ mm.
A) 3.2
B) 2.3
C) 4.3
D) 6.4
A) 3.2
84
Longitudinal distortion:
A) occurs parallel to the weld line.
B) is perpendicular to the weld line.
C) is a rotation around the weld line.
A) occurs parallel to the weld line.
85
A WPS document is supported by a PQR. What does PQR stand for?
A) Procedure Qualification Record.
B) Process Quality Report.
C) Procedure Quality Report.
D) Progressive Qualification Record.
A) Procedure Qualification Record.
86
What is the recommended minimum number of tack welds for preparing groove welds using SMAW on mild steel pipe smaller than 100mm in diameter?
A) 2
B) 3
C) 4
D) 5
B) 3
87
Structural discontinuities will be generally caused:
A) by using the incorrect electrode.
B) during the welding operation.
C) by distortion after the weld operation.
D) before the welding begins.
B) during the welding operation.
88
With the color code system for GTAW electrodes, what does the color green indicate?
A) EWP
B) EWCe-2
C) EWTh-1
D) EWLa-1
A) EWP
89
The possibility of atmospheric air entering the weld pool increases with the amount of splatter buildup on a nozzle .
A) True
B) False
A) True
90
Which of the following metals has the highest rate of thermal conductivity?
A) Copper
B) Brass
C) Aluminum
D) Steel
A) Copper
91
The vertical leg of a fillet weld symbol is always on the right side of the triangle .
A) True
B) False
B) False
92
Which of the following electrical properties opposes the flow of current?
A) amperage
B) inductance
C) voltage
D) resistance
D) resistance
93
What type of current is most often used in the GMAW process?
A) DCEP (direct current, electrode positive)
B) DCSP (direct current, straight polarity)
C) AC (alternating current)
D) HAC (high frequency alternating current)
A) DCEP (direct current, electrode positive)
94
The most likely reason for the wire stopping during a weld in a FCAW is the:
A) flowmeter needs adjusting
B) contact tube is plugged.
C) gas supply is empty.
D) incorrect size liner is used.
B) contact tube is plugged.
95
What is anodizing?
A) It is a mechanical process.
B) It is an electro chemical process.
C) It is a type of GTAW weld.
D) It is a type of GTAW electrode.
B) It is an electro chemical process.
96
The following is a pipe fitting symbol for a:
A) Cross Reducing
B) Lateral
C) Eccentric Reducer
D) Tee Reducing
D) Tee Reducing
97
When performing a gas metal arc weld on aluminum, ____ is used as a shielding gas.
A) CO2
B) argon
C) acetylene
D) propane
B) argon
98
What type of dimensioning is used in the figure?
A) Conventional dimensioning.
B) Baseline dimensioning.
C) Running dimensioning.
D) Quadrature dimensioning.
B) Baseline dimensioning.
99
The scale on a drawing is 1 :5.
The scaled length of a shaft is 1 ¼ inches long.
The actual length of the shaft will be __
__ inches long.
A) 6¼
B) 1/4
C) 3 ¼
D) 4¾
A) 6¼
100
The value 139 is ____ percent of 556.
A) 75
B) 25
C) 33
D) 16
B) 25
101
A tolerance of 300(± 7) would allow a value of:
A) 3307.0
B) 2100.0
C) 307.0
D) 30.7
C) 307.0
102
When welding a butt joint weld with SMAW a backup strip may be used when.
A) more strength is needed.
B) there is a shortage of electrodes.
C) pre heat is needed.
D) welding can take place from one side only.
D) welding can take place from one side only.
103
SAW normally uses ____ type drive rolls.
A) U-grooved
B) knurled
C) flat
D) angled
B) knurled
104
On isometric drawings pipe weld locations are:
A) not shown
B) not dimensioned
C) dimensioned from the beginning of the spool
D) dimensioned from the end of the spool
B) not dimensioned
105
When a carbon steel flux-electrode has a classification of F6A2-EL8K, the "8" represents the:
A) tensile strength.
B) carbon content.
C) manganese content.
D) flux.
B) carbon content.
106
Which of the following describes stress relieving?
A) It is done by thermal or mechanical treatments.
B) It is usually done at 93 degrees Celsius.
C) It is the heating of ingots of heat treatable wrought alloys.
D) It is used to bring metal into a soft workable condition.
A) It is done by thermal or mechanical treatments.
107
Flow meters indicate pressure while regulators indicate volume flow.
A) True
B) False
B) False
108
108. What is a characteristic of silicon as an aluminum alloy?
A) It is used for structural applications .
B) It is non heat treatable .
C) Its good corrosion resistance and ductility .
D) It provides high strength.
B) It is non heat treatable
109
Which gas is the heaviest?
A) Helium
B) Argon
C) Air
D) Nitrogen
B) Argon
110
Using Pythagorean theorem, calculate side "B" if side "A" equals 233.17 and side "C" equals 147 (side A is the hypotenuse).
A) 200.0
B) 181.0
C) 165.0
D) 147.0
B) 181.0
111
Which shielding gas is used primarily for welding mild steel?
A) Argon
B) Carbon Dioxide
C) Helium
D) Hydrogen
B) Carbon Dioxide
112
Which of the following is the Top View of the above figure?
A)
113
The following is provided for creating a flange pattern: 6 @ 7/8" Ø; BCD of 7"; OD of 9".
How many bolt holes are called for?
A) 9
B) 7 or 8
C) 7
D) 6
D) 6
114
Semi-automatic welding FCAW power sources are typically rated for ____ percent duty cycle.
A) 100
B) 80
C) 60
D) 40
C) 60
115
Orthographic views can be used to describe any shape exactly and completely in sufficient detail to permit fabrication.
A) True
B) False
A) True
116
With respect to dimensioning drawings, which of the following is correct?
A) Dimension only at right angles.
B) Never cluster dimensions.
C) Always draw a dimension line of any kind through a member .
D) Dimension the size of all parts.
D) Dimension the size of all parts.
117
When making an oblique drawing, which of the following is true?
A) The horizontal planes always recede at 30 degrees.
B) It has the advantage of showing all directions.
C) The depth of the object is reduced to 75% of scale size.
D) The receding edges are drawn parallel usually at a 45 degree angle.
D) The receding edges are drawn parallel usually at a 45 degree angle.
118
On a constant speed wire feeder the welding current is adjusted by increasing or decreasing the:
A) wire speed.
B) supply voltage.
C) arc length.
D) size of wire.
A) wire speed.
119
The purpose of a skirt on a pressure vessel is to:
A) increase the volume of the vessel.
B) contain the content of the vessel.
C) provide support to the vessel.
D) cover the legs of the vessel.
C) provide support to the vessel.
120
The most likely reason for the wire stopping during a weld in a FCAW is the
A) flowmeter needs adjusting.
B) contact tube is plugged.
C) gas supply is empty.
D) incorrect size liner is used.
B) contact tube is plugged.
