Exam Questions I got WRONG Flashcards by Megan Read

With GMAW on light ga. metals which metal transfer method is preferred?

Pulsed spray Arc Transfer

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What type of stepladder can be used to hold extension planks?
a) single wood stepladder
b) single Al stepladder
c) double stepladder
d) stepladders aren’t to be used to hold planks

c) double stepladder

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Inductance is responsible for controlling ___?

The response time for the current to rise and fall

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*What is the voltage range for GMAW spray transfer

26-35volts

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Which of the following would be a work hazard
a) working on the 3rd rungs of the ladder
b) performing electrical work on an Al ladder
c) working from a scaffold thats plumb
d) bending with your knees to lift an object

b) performing electrical work on an Al ladder

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An increase in output voltage would intern create a ______
a) longer arc length
b) shorter arc length
c) slope to increase
d) slope to decrease

a) longer arc length

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According to OHS regulations who is responsible for safe work & safety conscious measures in order to protect co-workers
a) employee
b) employer
c) foreman
d) manufacturer

a) employee

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What are filler wires protected from during storage and shipping.

Dust, moisture & foreign substances

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The contact tube supplies______
a) current to the work surface
b) current to the filler wire
c) compressed air supply
d) shielding gas supply

b) current to the filler wire

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According to OHS the party responsible for housekeeping such as maintaining the worksite
a) your mother
b) employee
c) employer
d) joint worksite safety committee

c) employer

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Which type of wire feeder is used with CC power source

Voltage sensing wire feeder

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when inductance is added to a welding circuit the desired result is?
a) flatter bead
b) convex bead
c) reduced spatter
d) more fluid puddle

c) reduced spatter

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What is the main purpose of slope control?
a) to limit the amperage the machine can achieve
b) to limit the voltage the machine can achieve
c) to limit the available short circuiting current
d) to limit the available globular transfer current avaliable

c) To limit the available short circuiting current

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An Isolated worksite that employs 12 workers & is more than 40 min away from healthcare
a) type P 1st Aid Kit
b) a N1 first aid Kit
c) one basic first aider & #1 first aid kit
d)one intermediate first aider and a #2 first aid kit

d)one intermediate first aider and a #2 first aid kit

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Which filler wire is used with FCAW
a) E70T-1
b) ER70U-1
c) ER70S-2
d) E70S-1

a) E70T-1

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GMAW solid filler wire produces ______weld?
a) Metal deposits
b) celulose
c) low hydrogen
d) rutile

c) low hydrogen

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Which polarity is used with GMAW to provide adequate penetration?

DCEP

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Shielding gas flow is activated by _______?
a) gun trigger
b) gas valve
c) solenoid valve
d) arc contact with workpiece

c) Solenoid Valve

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What’s the primary function of the shielding gasses used when wire process welding

to shield the puddle from atmosphere

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Push pull guns are designed to transfer _____?

soft wire through long liners

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Silicon, Aluminum & manganese are added to filler wire to act as?
a) stabilizers
b) deoxidizers
c) lubricators for conduit liners
d) alloys to increase puddle fluidity

b) deoxidizers

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*The wire drive motor adjusts the wire speed to maintain arc length when using a CC power source with what type of wire feeder

voltage sensing wire feeder

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What does helix refer to

the corkscrew effect on the wire

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What is the main purpose of the contact tube with GMAW

to transfer the welding current to the filler wire

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Which metal transfer type has a smooth hissing sound

Spray transfer

A wire drive motor that adjusts the wire speed to maintain arc length with using a what type of power source and wire feeder? a) CC, volt sensing b) CV, volt sensing c) CC, constant speed d) CV, constant speed

b) CV power source with volt sensing wire feeder

MCAW can be used in all positions when welding with what mode of transfer a) short circuiting b) globular c) spray d) pulsed spray

d) pulsed spray

CV power sources are used with what type of wire feeders

constant speed wire feeder

What is the voltage range for GMAW spray transfer

22-26volts

*CV power sources are used with what type of wire feeders

constant speed wire feeders

A green triangle attached to your work boots indicates a) light industrial b) heavy industrial c) grade 2 protective toe d) category 3 footwear is required

b) heavy industrial

What is responsible for more arc on time with using short circuit mode of metal transfer?

Inductance

which gmaw mode of metal transfer requires the filler wire to contact the base of the metal

short circuit arc transfer

What's the min height of toe boards on a scaffold? a) 4" b) 5 1/2" c) 6" d) 8"

b) 5 1/2" or 140mm

What's the purpose of the curved neck on a welding gun

Ensures continuous current flow

Increasing stickout decreases _______?

Welding Current

Serrated feed rolled used with FCAW/MCAW are designed to provide_____?

max force with min drive pressure

What is the definition of cast

The Diameter of a circle formed by 10' of electrode wire

Filler metals should be stored in what environment

moisture free

What power source is best suited for short circuit method

Constant Voltage

*Which type of wire feeder is more prone to stubbing and burn backs

Voltage Sensing wire feeder

To minimize distortion or to bridge wide gaps with GMAW you should use what transfer type?

Short circuit transfer

What will happen with GMAW with and increased electrode extension

Penetration will decrease

The most economical welding process for welding low alloy steels with special electrodes a) SMAW b) GMAW c) FCAW d) MCAW

d) MCAW

Which signal describes the LOAD up

Forearm vertical & pointer finger pointing up

What signal describes the BOOM up

thumbs up

Which application is a bowline knot used for a) hoisting b) safety lines c) hitching around a post d) all of the above

d) all of the above

What signal indicates BOOM down

arm extended and thumbs down

At what sling angle does the load on each sling equal the weight of the load a) 15° b) 30° c) 45° d) 60°

b) 30°

Describe a shock load

a load that inflicts stress on the equipment

Using a spreader beam to hoist a load would lend an advantage in which situation the most? a) Lifting short loads b) heavy lift required c) load strapped to a pallet d) lifting long hard to handle loads

d) lifting long hard to handle loads

The term bridle hitch refers to? a) a long sling with a snatch block b) 3 or 4 hitches connected to hoist a load c) multiple slings or straps used to tie down a load d) one long choker sling double wrapped around an object

b) 3 or 4 hitches connected to hoist a load

When a load is lifted off the ground the boom angle changes and the load radius ____________? a) increases b) decreases c) remains un changed d) deflects

a) increases Because the weight of the load imposed on the boom causes the boom to lower and there fore extend further than before under the strain, the distance from the cabs centre of gravity to the top most tip of the boom increases page 55

Containers used to store or transport gasoline should be labelled to represent a) GHS b) SDS c) ASME d)TDGR

d)TDGR

What type of fire extinguishing agent is used to compress a class K fire a) H2O b) foam c) dry chemical d) wet chemical

d) wet chemical

Which of the following info must be provided on an SDS a) hazardous product b) quantity of the product c) capacity of the container d) mechanical properties

a) hazardous product

What is the best form of protection from x-rays and gamma rays a) reflective screens b) the rays are harmless c) distance d) solid wall

c) distance

General conversation is aprox _______ decibels a) 30 b) 40 c) 65 d) 85

c) 65

Another name for sour gas is a) hydrogen sulfide b) natural gas c) methane d) propane

a) hydrogen sulfide

Ultraviolet rays are most common with a) oxygen fuel welding b) electric arc welding c) oxy- fuel cutting d) oxy- fuel brazing

b) electric arc welding

When braze welding mild steel, the welder can expect to encounter a) cadmium fumes b) H2S gas fumes c) lead fumes d) zinc fumes

d) zinc fumes

Bird nesting in the wire feeder, could be caused by: a) the feed cable being to large for the wire b) the conduit liner is misaligned with the drive rolls c) excessive pressure on wire spool brake d) drive roll setting to loose

b) the conduit liner is misaligned with the drive rolls

Which of the following techniques would most likely cause cold lap on a 2F lap weld? a) wire added to the leading edge of the puddle b) travel speed to slow c) excessive current settings d) travel speed to fast

b) travel speed to slow

The same precautions apply to punches as: files chisels wrenches screwdrivers

chisels

Flexible hack saw blade is best suited for : tubing channel iron aluminum all of the above

all of the above

When cutting machine steel & cold rolled steel the pitch on the hack saw blade should be 14 teeth per inch 24 teeth per inch 32 teeth per inch 40 teeth per inch

14 teeth per inch

When cutting thin tubing with a hack saw it is best to use a blade having 14 teeth per inch 24 teeth per inch 32 teeth per inch 40 teeth per inch

32 teeth per inch

Diagonal pliers may be used to cut wire up to 1/2" 1/16" 3/32" 1/8"

3/32"

When using an adjustable wrench position it so the force acts against the solid jaw T/F

True

A punch used for starting the removal of difficult parts or pins is known as a prick punch drift punch center punch straight punch

drift punch

Contour markers are used to develop a) drawings on blueprints b) bevel cuts on pipe c) cut lines for any angle d) layout lines on flat plate steel

c) cut lines for any angle

Hand sheers have the capacity to cut material up to 3/32" up to 1/8" up to 3/16" up to 1/4"

up to 1/4"

The length of dividers is determined by thickness of the leg from the pivot point to the end of the leg distance between the legs when fully opened measurement from the top of the divider to the bottom

from the pivot point to the end of the leg

Can cold chisel that has a mushroomed head be restored no they should be discarded yes, by grinding to original shaft contour yes, by grinding and heating the end to re-temper yes, by grinding the end to the recommended included angle

yes, by grinding to original shaft contour

Diamond chisels are used for squaring the convex corners of keyways cutting small convex surfaces cutting convex diamond shapes all of the above

squaring the convex corners of keyways

What is the reccomended gas flow rate when using C25 with .035 wire in the short circuit metal transfer mode? 10-20 CFH (5-9L/min) 20-35 CFH (9-17L/min) 35-45 CFH (17-21L/min) 45-55 CFH (21-32L/min)

20-35 CFH (9-17L/min)

What is the primary factor when placing tacks for a GMAW groove weld tacks must be of good quality tacks must be no longer than 1/2" tacks must bond properly to the base metal tacks should be slightly wider than the weld bead

tacks must be of good quality

What is the recomended transfer mode for a 2F lap joint using 3/8" material welded with MCAW? a) short circuit b) globular c) spray d) pinch effect

c) spray

An important requirement prior to selecting the filler wire for a job is to: a) match the wire to the welding process b) select the wire for the material thickness c) choose wire size according to equip capabilities d) all of the above

d) all of the above

How is N2 produced a) natural gas deposits b) during the air liquefaction process c) through mixing of laboratory chemicals d) oil production, produces trace gasses where N2 is collected

b) during the air liquefaction process

On a center punch, the point angle is ground in line with the shank at what degree included angle? A) 90 B) 60 C) 45 D) 15

A) 90

What type of cutting tip would you use when attempting to cut a bolt off, flush with the surface of a plate? A) Straight B) Scarfing C) Gouging D) Rivet

D) Rivet

The pressure of a full oxygen cylinder vary with temperature. A cylinder charged to 15170 kPa should read approximately what MPa at -12 degrees Celsius? A) 17.2 B) 13.9 C) 12.7 D) 11.4

C) 12.7

What is the maximum hours that a worker can be exposed to a sound level of 105 dB without hearing protection per day? A) 0.25 B) 0.5 C) 1.0 D) 2.0

B) 0.5

What type of glove should a welder wear when exposed to intense heat? A) Oiled leather. B) Chrome tanned cow hide. C) Aluminized leather. D) Thick cotton weaved with asbestos.

C) Aluminized leather.

What are the temperatures in the plasma arc stream estimated to range from in degrees Celsius? A) 1000 to 5000 B) 2000 to 2700 C) 10,000 to 11,000 D) 10,000 to 27,760

D) 10,000 to 27,760

What is an employer's responsibility when dealing with WHMIS? A) To prepare workplace labels as needed. B) To provide a safety data sheet to inspectors. C) To ensure that the hazardous products are properly classified as per the hazardous products regulations. D) To use protective equipment to be safe.

A) To prepare workplace labels as needed.

What is described as the sling angle? A) Horizontal plane and the angle between the legs of a sling. B) Vertical plane and the angle between the legs of a sling. C) Point of attachment and the distance between the legs of a sling. D) Lifting cable and the distance between the legs of a sling.

A) Horizontal plane and the angle between the legs of a sling.

What does the above WHMIS pictogram represent? ( dead fish, tree and water) A) Materials that cause health effects. B) Materials that cause reproductive toxicity. C) Materials that relate to biohazardous infectious materials. D) Materials hazardous to the ozone layer.

D) Materials hazardous to the ozone layer.

What are the temperatures in the plasma arc stream estimated to range from in degrees Celsius? A) 1000 to 5000 B) 2000 to 2700 C) 10,000 to 11,000 D) 10,000 to 27,760

D) 10,000 to 27,760

What type of drag lines, should a correctly performed cut have when cutting shapes? A) Curved. B) Irregular. C) Perpendicular. D) straight.

D) straight.

(picture described) When hoisting the following load, what is the tension on the slings. Total load is 500kg two slings come together and are joined at the top, each sling creating a 30° angle on each side. A) 500 kg B) 250 kg C) 150 kg D) 100 kg

A) 500 kg

(picture described) When hoisting the following load, what is the tension on the slings. Total load is 500kg two slings come together and are joined at the top, each sling creating a 45° angle on each side. A) 500 kg B) 250 kg C) 154 kg D) 354 kg

D) 354 kg ## Footnote weight divided by number if slings used multiplied by the load factor of the angle. 500/2*1.414=353.5

What extinguishing agent should be used in a Class A or B fire? A) Foam. B) Regular dry chemical. C) Dry powder. D) Purple M dry chemical.

A) Foam.

How are Regulators classified? A) By service and type. B) By color and size. C) By weight and size. D) By stage and type.

D) By stage and type.

What is the current level in milliamps that could cause you to lose control of your muscles and not be able to release your grip? A) 40-50 B) 30-40 C) 15-20 D) 5-10

C) 15-20

What type of rays can cause retina damage when welding? A) X-rays B) Infrared C) Ultraviolet D) Gamma rays

D) Gamma rays

Which Part of the OH&S Code describes the requirements for PPE? A) 16 B) 18 C) 24 D) 35

B) 18

If an injury occurs at work, your employers must report the injury to WCB within how many hours? A) 12 B) 24 C) 48 D) 72

D) 72

What does the CAC-A process not recommended cutting? A) Aluminum. B) Stainless steel. C) Nickel Alloys. D) Beryllium

D) Beryllium

At what degree does a prick punch have its point angle ground between? A) 45 to 60 B) 30 to 60 C) 15 to 45 D) 30 to 45

B) 30 to 60

What is the rope called if the strand lay of a wire rope is opposite to the direction of the strands in the rope? A) Right strand lay. B) Left strand lay. C) Inverted lay. D) Regular lay.

D) Regular lay.

What is a hazard statement in WHMIS? A) The name of the hazardous product. B) A graphic that represents the hazard class. C) A prompt to alert the worker about the level of hazard. D) A phrase that identifies the nature of the hazard

D) A phrase that identifies the nature of the hazard

What is the proper cutting edge in degrees when sharpening a twist drill bit? A) 12 B) 35 C) 44 D) 59

D) 59

What type of file would you use if you wanted a smooth finish? A) Curved. B) Rasp. C) Double-cut. D) Single-cut.

D) Single-cut.

What type of label is required on your footwear if you are required to have protection to withstand an impact of up to 125 joules? A) A green triangle. B) A yellow triangle. C) A blue triangle.

A) A green triangle.

What is the shade number that is recommended for medium to high amperage SMAW on a welding helmet? A) 14 B) 12 C) 11 D) 10

B) 12

What does it mean when a chain link has the letter "A" stamped on it? A) It is "A"okay. B) It is made of aluminum. C) It is high strength low alloy steel. D) It is an alloy chain.

D) It is an alloy chain.

When would you adjust your flame to an oxidizing flame? A) Fusion welding of cast iron. B) Aluminum brazing. C) Braze welding of steel. D) Fusion welding of bronze.

D) Fusion welding of bronze.

What cutting tip number would the thickest steel be cut with? A) 1 B) 3 C) 5 D) 7

D) 7

Which part of the OHS Code deals with "working alone"? A) Part 5 B) Part 9 C) Part 18 D) Part 28

D) Part 28

Every link of a chain sling must be inspected and the sling should be destroyed if the wear of the link exceeds what percentage of the diameter of the link? A) 5% of the diameter of the link. B) 10% of the diameter of the link. C) 15% of the diameter of the link. D) 20% of the diameter of the link.

C) 15% of the diameter of the link.

What type of exposure when welding could cause cancer or damage to body tissues? A) Gamma ray. B) Infrared ray. C) Visible light waves. D) Sound waves.

A) Gamma ray.

When using PAC in the 300 ampere range, what is the recommended shade filter to be used? A) #6 B) #8 C) #10 D) #12

B) #8

What is a precautionary statement in WHMIS? A) The name of the hazardous product. B) A phrase that describes direct measures. C) A prompt to alert the worker about the level of hazard. D) A phrase that describes the most significant hazard

B) A phrase that describes direct measures.

The membership of a joint work site and safety committee is located in what Part of the OHS Code? A) Part 11 B) Part 13 C) Part 18 D) Part 28

B) Part 13

What must an oxy-fuel outfit have its hoses made of? A) Synthetic vinyl, real vinyl or cotton. B) Cotton, neoprene or rubber. C) Rubber, Kevlar or nylon. D) Neoprene, rubber or aluminums.

D) Neoprene, rubber or aluminums.

What extinguishing agent should be used in a Class B or C fire? A) Foam. B) Regular wet chemical. C) Wet chemical. D) Purple K dry chemical.

D) Purple K dry chemical.

What ppm of concentrations of hydrogen can cause immediate unconsciousness? A) 100 B) 300 C) 500 D) 700

D) 700

The type of eye protection that uses glasses with side protection is known as what type of class? A) Class 1 B) Class 2 C) Class 3 D) Class 4

A) Class 1

What is the oxygen needle value used to adjust when using a heavy duty cutting torch for cutting? A) The length of the preheat flame. B) The cutting stream pressure. C) The preheat cones. D) The fuel consumption.

C) The preheat cones.

What material causes vapours that are poisonous and carcinogenic? A) Copper B) Cadmium C) Iron D) Zinc

B) Cadmium

What is an alternative fuel gas, like natural gas most useful for? A) Welding and brazing. B) Preheat and post weld heat treatment. C) Welding at temperatures above 5600 degrees Celsius. D) Welding temperatures above 5200 degrees Celsius.

B) Preheat and post weld heat treatment.

What class of protection provides you with a safe supply of breathable fresh air while protecting your face and eyes from impact? A) Class 5 B) Class 6 C) Class 7 D) Class 8

C) Class 7

What are the three categories of cutting torches? A) Laser, combination and plasma. B) Plasma, machine and laser. C) Light, medium and heavy duty. D) Machine, combination and standard.

D) Machine, combination and standard.

The type of eye protection that uses glasses with side protection is known as what type of class? A) Class 1 B) Class 2 C) Class 3 D) Class 4

A) Class 1

What does NPS stand for

Nominal Pipe size

What are the two process variations used in FCAW? A) Arc and spray. B) Self and gas shielded. C) Hydrogen and oxy. D) Spray and globular.

B) Self and gas shielded.

Which type of FCAW electrode wire can be used without externally applied shielding gas? A) E492T-8 (E70T-8) B) E49XT-9 (E7XT-9) C) E492T-10 (E70T-10) D) E491T-13 (E71T-13)

C) E492T-10 (E70T-10) ## Footnote help understand

What is a characteristic of manganese as an aluminum alloy? A) It is used for structural applications. B) It is not used for structural applications. C) Its good corrosion resistance and ductility. D) It provides high strength.

D) It provides high strength.

Which of the following is true when talking about a CV welding machine? A) A variable wire feed speed is used. B) The arc voltage is maintained at a constant level. C) Current remains constant when the wire short circuits to the work. D) All of the above are correct.

B) The arc voltage is maintained at a constant level.

Which of the following produces Inductance in a circuit? A) Reactor. B) Capacitor. C) Resistor. D) Speed.

A) Reactor.

Which AWS filler wire specification relevant to GMAW would you use for titanium? A) A5.9 B) A5.10 C) A5.16 D) A5.32

C) A5.16

The primary use of argon in welding is for what metals? A) Steel. B) Aluminum. C) Iron. D) Cast iron.

B) Aluminum.

What is the gas flow for shielding gas measured in? A) L/Hr B) PSI C) RPM D) CFH

D) CFH

What is amperage referred to as? A) The voltage potential. B) The resistance to current. C) The puddle fluidity. D) The current flow.

D) The current flow.

Which gas is better to use when welding thin sections? A) Helium B) Argon

B) Argon

What will happen if the nozzle and contact tube with GMAW gets obstructed? A) It will cause the current to vary. B) It will cause splatter to diminish. C) It will cause porosity and poor quality welds. D) It will cause too great of a gas flow.

C) It will cause porosity and poor quality welds.

What is a major effect that copper will have on aluminum when they are alloyed? A) It is widely used for extruded applications B) It is not sensitive to hot cracking. C) It provides strength and is heat treatable. D) It is strain hardened to provide good ductility.

C) It provides strength and is heat treatable.

What is the recommended electrode inclination for GMAW on aluminum? A) 0 to 30 degrees. B) 30 to 60 degrees. C) 25 to 50 degrees. D) 25 to 30 degrees.

A) 0 to 30 degrees.

What type of flux can be re-used with SAW? A) Fused B) Bonded C) Neutral D) Paste

A) Fused

What is critical to ensure when connecting a GMAW system A) The Flow meters match the electrode wire size and type. B) The Drive rolls match the electrode wire size and type. C) The Regulators match the electrode wire size and type. D) The Power supplies match the electrode wire size and type.

B) The Drive rolls match the electrode wire size and type.

Which gas is colourless, odourless and acts as an asphyxiant? A) Helium B) Carbon dioxide C) Oxygen D) Hydrogen

D) Hydrogen

Which of the following indicates a flat position groove type weld? A) 1G B) 1F C) 2G D) 2F

A) 1G

At what degree to each other would the start point of each pass be placed to help reduce distortion when completing a GMAW weld on steel pipe that requires three passes? A) 240 degrees to each other. B) 120 degrees to each other. C) 100 degrees to each other. D) 60 degrees to each other.

B) 120 degrees to each other.

What does the letter "O" refer to with non-heat treatable wrought alloys? A) Three quarters hard. B) Fully annealed. C) Not fabricated. D) As fabricated.

B) Fully annealed.

When would a plug type weld only be used on joints? A) On a Butt. B) On a Corner. C) On a Tee. D) On a Lap.

D) On a Lap.

Which of the following joint preparations for a corner joint requires only one member of the joint to be prepared? A) Single Vee Joint B) Single U Joint C) Double J Joint D) Double C. Joint

C) Double J Joint

What type of gas cylinder value connections use a right hand thread? A) Argon gas B) Nitrogen C) Shielding gas D) Oxygen

C) Shielding gas

What are SAW electrode wires available in sizes of? A) 4.2 to 19 mm. B) 3.2 to 9.6 mm. C) 2.7 to 9.6 mm. D) 1.6 to 6.4 mm.

D) 1.6 to 6.4 mm.

What is specific gravity? A) It is the ratio of weight of one substance compared to another. B) It is a measure of the speed at which heat flows through an object. C) It is the mass of a substance divided by its volume. D) It is a ratio used as a multiplier to compare the expansion and contraction of a substance under different conditions of heat.

A) It is the ratio of weight of one substance compared to another.

What power sources can be used for SAW? A) DC only with constant current or constant voltage. B) AC or DC with constant current or constant voltage. C) AC only with constant current or constant voltage. D) DC only with constant voltage.

B) AC or DC with constant current or constant voltage.

Which of the following methods describes transferring molten aluminum from a crucible into a mould? A) Sand casting. B) Permanent mold casting. C) Centrifugal casting. D) Die casting.

C) Centrifugal casting.

What is a characteristic of zinc as an aluminum alloy? A) It is used for structural applications. B) It is used for extruded applications. C) Its good corrosion resistance and ductility. D) It provides high strength.

B) It is used for extruded applications.

What determines the size of a groove weld? A) Throat dimension. B) Groove angle. C) Root gap. D) Root face.

A) Throat dimension.

What type of joint is most commonly used for the joining of light gauge sheet metal? A) Double vie groove joint. B) Edge joint. C) Surface joint. D) Fillet joint.

B) Edge joint.

When welding at a given speed, what effect will increasing the amperage cause? A) A thicker, higher bead with deeper penetration. B) A narrower, lower bead with thinner penetration. C) A thicker, lower bead with thinner penetration. D) A narrower, higher bead with deeper penetration.

D) A narrower, higher bead with deeper penetration.

Which type of filler material has higher manganese and lower silicon content? A) ER70S-4 (B-G 49A 3 C G4) B) ER70S-5 (B-G 49A 3 C G5) C) ER70S-6 (B-G 49A 3 C G6) D) ER70S-7 (B-G 49A 3 C G7)

D) ER70S-7 (B-G 49A 3 C G7)

How can burn though caused by base metal overheating be corrected with GMAW? A) Increase wire speed drive B) Use a push technique not a drag technique. C) With increased travel speed D) Replace the contact tip.

C) With increased travel speed

How can the five basic welding joint types be remembered using an acronym? A) ABTEL B) BCGOV C) BCTEL D) ABGEL

C) BCTEL Butt (groove), Corner (inside, outside), T (fillet), Edge, and Lap

What is the simplest type of weld joint to prepare? A) Single bevel groove. B) Double bevel groove. C) Square groove. D) Single U groove.

C) Square groove.

What are sharp bends or kinks in the cable of a FCAW likely to cause? A) A short circuit. B) A blocked diffuser. C) A wire hang up. D) A poorly penetrated weld.

C) A wire hang up.

What is the following welding joint type referred to as? (describing pic) an L joint with the top plate stacked vertically at the far left of the horizontal plate A) Flush corner joint. B) Open corner joint. C) Half open corner joint. D) Basic corner joint.

A) Flush corner joint.

In the GTAW process, which of the following would be the cause of overheating welding cables? A) Poor work lead connections. B) Loose or broken wire to solenoid. C) Cables too long. D) Badly worn or dirty collet.

C) Cables too long.

Which statement is correct when referring to galvanic corrosion a) any process that increases the refractory oxide causes corrosion b) Al subjected to high temp service c) Al that is continually subject to oil based environments d) steel contacting Al, while in a moist environment

d) steel contacting Al, while in a moist environment Understand Galvanic corrosion

Which shielding gas is used primarily for welding mild steel? a) CO2 & He b) CO2 & Ar c) Pure CO2 d) CO2 & O2

c) Pure CO2

What is another name for globular transfer when using CO2 as a shielding gas a) open arc b) c) d)

a) open arc

What type of shielding gas would be referenced as a reactive gas? a) O2 b) CO2 c) H2 d) He

b) CO2

Which of the following would be correct about performing FCAW with C25 gas mix? a) poor penetration with spray transfer b) excellent penetration with spray transfer c) poor penetration with short circuiting metal transfer d) excellent penetration with short circuiting metal transfer

d) excellent penetration with short circuiting metal transfer

What does the 6 define in the wire classification E491T-6 a) slag current , polarity and shielding gas b) c) d)

According to AWS wire classifications E70T-3 what does the 0 define? a) alloy group b) % of Al purity c) welded in a flat and horizontal position d) welded in the vertical position

c) welded in a flat and horizontal position

Bird nesting in the wire feeder could be caused by? a) arc hunting b) excessive pressure on the wire spool break c) conduit liner is kinked d) to long of machine to work distance

b) excessive pressure on the wire spool break

Which testing method is not used for CSA code when testing GMAW welds done with Short Circuit Metal Transfer a) visual test b) ultrasonic c) liquid penetrant d) radiographic testing

d) radiographic testing

What is the common method of adjusting the contact tube for short circuiting metal transfer ? a) changing nozzle type b) switching to a longer electrode c) adjust the eso so it extends slightly beyond the end of the nozzle d) adjust the eso so it extends 1/4" past the end of the nozzle

c) adjust the eso so it extends slightly beyond the end of the nozzle

A stainless steel white brush should be restricted for use on stainless steel or non-ferrous materials. T /F

True

Which of the following wrenches are sizes the same on each end? a) combonation wrench b) open ended c) box ended d) in line

a) combonation wrench

A drift punch is used for: a) aligning holes b) forcing out hard to move pins c) marking the centre point for cutting d) both a & b

d) both a & b a) aligning holes b) forcing out hard to move pins

Which of the following wrenches are sized differently on each end? a) combonation wrench b) open ended c) box ended d) in line

c) box ended

Hand shears have the capacity to cut material up to: a) 1/16" b) 1/8" c) 1/32" d)1/4"

d)1/4"

GMAW is a a) manual process b) automatic process c) semi automatic d) semi automatic process

d) semi automatic process

Final oxide removal of the weld area takes place by: a) using a file b) using solvents c) using a wire brush d) the welding arc

d) the welding arc

When using GMAW to weld Al, arc starting can be affected by: a) wrong polarity b) no shielding gas c) improper grounding d) all of the above

d) all of the above

For steel pipe ranging in size from _____ the nominal size is the aprox inside diameter of standard wall thickness pipe. a) 1/8" - 10" b) 1/8" to 12" c) 1/8" to 24" d) 1/8" to 36

b) 1/8" to 12"

A record of a test specimen using variables listed in a WPS that has been thoroughly tested to ensure welders consistently yield good welds is referred to as a) PQR b) AWS c) CWB d) MSDS

a) PQR procedure qualification record

Converting pipe sizes from imperial to metric requires a factor of: a) 2.54mm/ inch b) 25.4 mm / inch c) 254mm/inch d) 2450 mm / inch

b) 25.4 mm / inch

Plasma arc cutting requires a current selection of (7) a) AC b) DCSP c) DCRP d) AC High frequency

b) DCSP

What current is required for severing mild steel with the SMAW process and a E6011 electrode (29) a) AC b) DCRP c) DCSP d) AC or DCRP

c) DCSP

What would cause slag to adhere to the edge of a groove gouged with CAC - A a) incorrect polarity b) loose connections c) travel speed to slow d) incorrect electrode angle or inclination

d) incorrect electrode angle or inclination

What shade lens is required for CAC-A gouging in the 200-400 amp range? a) 9 b) 10 c) 12 d) 14

c) 12

When using CAC-A what would be the cause of intermittent gouging action? (27) a) travel speed to fast b) travel speed to slow c) inadequate air pressure d) air not on prior to striking the arc

b) travel speed to slow

The name for an arc welding process that uses solid continuous wire and an inert shielding gas is: a) tungsten inert gas b) shielded metal arc welding c) gas metal arc welding d) flux cored arc welding

c) gas metal arc welding

GMAW CANNOT be used on a) AL & Mg b) mild steel and ss c) Stainless, carbon and low alloy steels d) zinc diecast

d) zinc diecast

Short circuiting mode of metal transfer requires a: a) CC machine & High voltage settings b) CV machine and small diameter wire c) CP machine and high voltage settings d) AC machine and large diameter wires

b) CV machine and small diameter wire

What is an advantage of GMAW when compared to SMAW a) it takes less experience to set up the machine b) there is less electrode waste c) the weld can be done outdoors d) large diameter rods can be used

b) there is less electrode waste

One disadvantage of GMAW is: a) equip is inexpensive b) welds are more prone to lack of fusion c) thin metals may be welded d) an operator can learn to MIG more quickly

b) welds are more prone to lack of fusion

Which power source and feeder combo would be recommended for gas-shielded FCAW a) CC & Arc voltage sensing controll b) constant potential and voltage sensing feeder c) CC and constant speed feeder d) constant potential & constant speed feeder

d) constant potential & constant speed feeder

The power source least suited for the short circuit method of welding is a) CV machine b) AC machine c) CC machine d) An inverter

b) AC machine

Constant potential power source can also be referred to as a: a) CV machine b) CA machine c) CC machine d) constant resistance machine

a) CV machine

In applications where gas metal arc processes are the only processes used, the power source type should be a) conventional AC b) constant potential c) conventional CC d) a drooping curve

b) constant potential

A machine with relatively flat volt amp curve would be best suited for: a) PAW b) SMAW c) GMAW d) GTAW

c) GMAW

GMAW welding machines are constructed to specifications set by: a) AMSE b) ASTM c) NEMA d) FUBAR

c) NEMA

Water cooled guns are best suited for GMAW when using a) low voltage & high amperage b) high voltage and low amperage c) low voltage and high amperage d) high voltage and high amperage

d) high voltage and high amperage

When metal is heated and allowed to cool slowly in air, what would be the result? (10) * internal cracking * dimensional upset * surface hardening * it will remain the same after cooling

it will remain the same after cooling

A thermocouple will provide: (33) * a continuous reading of a materials temperature * a permanent record of heat treatment * postweld heat treatments * all of the above

* all of the above

During the annealing process, the recommended cooling method is: (21) * in oil * in air * in water * in insulation

* in insulation

When heat is transferred from one body to another it is called: (7) * radiation * transference * convection * conduction

* convection

Worn or broken steering parts on motor vehicles must be repaired by: (18) * replacing with new manufactured parts * preheat and post weld heat treatment must be done * weld with a specified electrode then quench the part * weld the part with low hydrogen electrodes and slowly cool

* replacing with new manufactured parts

Multi-pass welding results in what type of grain structure? (3) * fine * coarse * grain structure that does not change * refined weld but coarse HAZ

* fine

Tempering is described as a: (28) * case hardening process * toughening process * preheating process * hardening process

* toughening process

A fine grain structure: (4) * is creating by welding a joint in a single pass * leaves columnar grains in the weld metal * increases tensile and yield strength * all of the above

* increases tensile and yield strength

What would be the result of welding a joint where both expansion and contraction were restrained? (11) * stress in the joint * excessive warping * a good sound weld * the metal will expand but not contract

* stress in the joint

Heat treatment of a joint, in the lower critical temperature zone, followed by a slow controlled rate of cooling, is known as: (27) * stress relieving * normalizing * tempering * hardening

* stress relieving

Heat transmitted from a hot object to another object is referred to as: (7) convection conduction transmission all of the above

convection

A method of plugging the ground and electrode cables into terminals equipped on a buzz box welder, for amperage adjustment would define: (3) * shunt control * rheostat control * a step or tap control * adjustable coil control

* a step or tap control

The pressure in an electrical circuit is called the: (9) * ohms * current * resistance * electromotive force

* electromotive force

The most economical electric welder to buy and operate is the: (17) * AC generator * DC generator * AC-DC rectifier welder * AC transformer welder

* AC transformer welder

An AC transformer welding machine will produce: (11) * no fixed polarity * reverse polarity * straight polarity * high frequency

* no fixed polarity

What is a procedure that could eliminate or minimize arc blow? (2) * change the ground clamp position * use a reduced current setting * weld towards a heavy tack * all of the above

* all of the above

What is the force that causes current to flow in a conductor?(9) * amperage * gravity * voltage * Ohms

* voltage

What kind of welding machine will permit adjusting the voltage and amperage independently? (25) * AC rectifier * AC alternator * AC high frequency * DC generator dual controls

* AC rectifier

Welding machines should be located away from corners and walls to reduce: (30) * dust contamination in the machine * a fire hazard caused by the machine * smoke accumulation in confined areas * the distance from the central welding location

* dust contamination in the machine

Which of the following characteristics can be used to identify metals:(3) * shape x * weight * texture → * all of the above

all of the above

Which property is not represented in a tensile test? (16-18) x* ductility → * toughness * elongation * yield strength

toughness

Which metal has the highest thermal conductivity gold silver copper aluminum

silver

The yield strength of a metal is determined by which test (17) Rockwell Brinell Tensile Charpy

Tensile

What is the Brinell hardess rating of tool steel 300 400 500 600

500

Some of the soft natured non0ferrous metals reveal what type of sparks(8) white color yellow red or orange they do not reveal sparks

they do not reveal sparks

Which type of metal is noted for its low rate of thermal conductivity? (3) low carbon steel SS Al Titanium

Titanium

Which of the following would identify the grade of steel found on a metal specification tag (14) 44W E56359 1.500x20 all of the above

44W

Which would define physical properties of metals (22-25) * ductility, expansion, and melting temperature * density, tensile strength, and thermal conductivity * thermal conductivity, electrical conductivity, and density *electrical conductivity, corrosion resistance, and toughness

* thermal conductivity, electrical conductivity, and density

The appearance of malleable cast iron is: (3) * bluish grey and soft * light grey and smooth * the same as white cast iron * smooth with a velvety texture

* light grey and smooth

Heat transmitted from a hot object to another object is referred to as: (7) * convection * conduction * transmission * all of the above

* convection

Heat treatment of a joint, in the lower critical temperature zone, followed by a slow controlled rate of cooling, is known as: (27) * stress relieving * normalizing * tempering * hardening

* stress relieving

* stress in the joint

A fine grain structure: (4) * is creating by welding a joint in a single pass * leaves columnar grains in the weld metal * increases tensile and yield strength * all of the above

* increases tensile and yield strength

Tempering is described as a: (28) * case hardening process * toughening process * preheating process * hardening process

* toughening process

Multi-pass welding results in what type of grain structure? (3) * fine * coarse * grain structure that does not change * refined weld but coarse HAZ

* fine

* replacing with new manufactured parts

When heat is transferred from one body to another it is called: (7) * radiation * transference * convection * conduction

* convection

During the annealing process, the recommended cooling method is: (21) * in oil * in air * in water * in insulation

* in insulation

During the annealing process, the recommended cooling method is: (21) * in oil * in air * in water * in insulation

* in insulation

A thermocouple will provide: (33) * a continuous reading of a materials temperature * a permanent record of heat treatment * postweld heat treatments * all of the above

* all of the above

When metal is heated and allowed to cool slowly in air, what would be the result? (10) * internal cracking * dimensional upset * surface hardening * it will remain the same after cooling

* it will remain the same after cooling

Which of the following will usually produce the greatest amount of distortion? (6) *one pass in a square groove butt * two passes on a double vee butt * three passes on a single U butt * four passes on a double lap fillet

* three passes on a single U butt

Another method of reducing distortion is to tack sub-assembly parts and main assembly parts as one complete component and then weld. (13) True / False

False

Excessive reinforcement on the surface of a weld could result in: (8) * angular distortion * transverse distortion * transitional distortion * longitudinal distortion

* longitudinal distortion

A large pass of weld metal always improves production when compared to multiple small passes, but the disadvantage can be: (20) * a coarse grain structure for one large weld pass * a finer grain structure for one large weld pass * less distortion for the multi-pass welding * more distortion for one large weld pass

* a coarse grain structure for one large weld pass

Restraining expansion during the heating process will produce which of the following after cooling? (4) * upset * internal stress * internal cracking * surface hardening

* upset

There are how many types of groove welds? (9-13) 3 4 5 6

Surfacing means: (3) a) grinding to bare metal b) porosity showing on the top of the weld c) proper alignment of two joints to be welded d) overlaying weld metal to build up a surface

d) overlaying weld metal to build up a surface

Which joint is preferred for soldering, brazing and braze-welding operations? (16) a) the tee joint b) the butt joint c) the lap joint d) the corner joint

c) the lap joint

According to W47.1, what does the designation 1GF refer to? (17) a) a flat position groove to be roll welded b) weld in the flat and horizontal positions c) a fillet groove positioned at a 45-degree angle d) a fillet and groove weld are combined in a welded joint

d) a fillet and groove weld are combined in a welded joint

Which type of joint should be selected for high stresses, dynamic or critical applications? (17) corner joint butt joint tee joint lap joint

butt joint

How many basic variations of fillet welds are there? (6) 2 3 4 5

Which of the following is not a basic weld: (15) edge fillet groove surfacing

edge

Detail drawings are always made to the same scale as the main drawing. (18) True / False

False

The seam line on a vessel: (8) a) is also called the tangent line b) is a good reference point to measure from c) is the line between the head and the shell of the vessel d) the line that touches the head at the highest point of curvature

c) is the line between the head and the shell of the vessel

Cutting plane lines: (11) a) indicate the outside view of an object b) are used to conserve space on a drawing c) examine the internal composition by sawing into a part d) indicate where an imaginary cut is made through an object

d) indicate where an imaginary cut is made through an object

A long break line: (12) is drawn with freehand zig zags is used to shorten an object on a drawing is drawn to conserve space on a drawing all of the above

all of the above

The correct size of a groove weld, is the: (24) depth of fused weld metal depth of preparation for the groove weld included groove angle and the root opening depth of preparation including reinforcement

depth of preparation for the groove weld

A broken arrow indicates that: (9) a square groove preparation is to be used only one member of the joint requires preparation preparation is performed on both sides of the joint the weld is to be performed on the other side of join

only one member of the joint requires preparation

A reference line may have more than one arrow line? (5) True / False

True

NDE symbols can contain: (30) dimensions and the number of examinations specifications and other references supplementary symbols all of the above

all of the above

When multiple reference lines are used, the tail is placed on one line only. (18) True / False

False

What is the approximate melting temperature of carbon? (25) 327 C (450 F) 419 C (787 F) 885 C (1625 F) 3704 C (6700 F)

3704 C (6700 F)

Reverse polarity: (8) a) is used for an E6012 electrode b) is obtainable with AC current c) means the ground cable is connected to the positive terminal d) means the ground cable is connected to the negative terminal

d) means the ground cable is connected to the negative terminal

What is a disadvantage of an AC transformer welding machine? (17) limited selection of electrodes high operating cost high initial cost all of the above

limited selection of electrodes

One purpose of a permanent backing strip would be: (13) a) a temporary backer used for tacking purposes b) to prevent distortion by maintaining joint alignment c) a backer used to fill gaps and reduce the amount of weld passes d) to prevent weld defects due to atmospheric contamination

b) to prevent distortion by maintaining joint alignment

Heat treatment of a joint, in the lower critical temperature zone, followed by a slow controlled rate of cooling, is known as: (27) stress relieving normalizing tempering hardening

stress relieving

Aligned dimensions place the numbers: (12) above the arrow on aligned sectional views aligned with the horizontal plane in the direction that the arrows are running

in the direction that the arrows are running

Which would define physical properties of metals? (22-25) a) ductility, expansion, and melting temperature b) density, tensile strength, and thermal conductivity c) thermal conductivity, electrical conductivity, and density d) electrical conductivity, corrosion resistance, and toughness

c) thermal conductivity, electrical conductivity, and density

The appearance of malleable cast iron is: (3) bluish grey and soft light grey and smooth the same as white cast iron smooth with a velvety texture

light grey and smooth

Failure to grind internal undercut during the welding process may result in: (19) overlap porosity slag inclusion hydrogen cracking

slag inclusion

When using a buzz box welding machine, the polarity of the electrode: (3) changes every time the current changes direction is always positive is always negative all of the above

changes every time the current changes direction

Arrange the following metals in order of electrical conductivity highest to lowest: (23) silver, gold, copper silver, tungsten, gold silver, aluminum, gold silver, copper, aluminum

silver, copper, aluminum

In which direction does the pennant on a field weld symbol point? (11) towards the weld symbol drawn at a 45-degree angle same direction as the arrow there is no specific direction

towards the weld symbol

Hardfacing can be applied by using materials in the form of: (5) paste liquid filled tubes all of the above

filled tubes

Which of the following is not a basic weld: (15) edge fillet groove surfacing

edge

Some of the soft natured non-ferrous metals reveal what type of sparks: (8) white color yellow color red or orange they do not reveal sparks

they do not reveal sparks

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