Course: WLD191 Online Test

Q: The most suitable cutting process to use on ferrous metals such as straight carbon steel is _____.
- carbon arc cutting
- oxyfuel cutting
- powder cutting
- plasma arc cutting
A: oxyfuel cutting

Q: The oxidation that occurs during an oxyfuel cutting operation is similar to a greatly sped-up _____.
- tempering process
- annealing process
- rusting process
- crystallizing process
A: rusting process

Q: For long-term cutting of materials containing cadmium or mercury, always wear an approved _____.
- supplied air respirator
- metal-fume filter
- HEPA-rated filter
- standard respirator
A: supplied air respirator

Q: When performing oxyfuel cutting, it is acceptable to wear _____.
- a cap and safety glasses
- a face shield over safety glasses
- a hard hat and sunglasses
- a vented mesh cotton hood
A: a face shield over safety glasses

Q: Two types of gases that tend to concentrate in and along low areas are _____.
- acetylene and propylene
- methane and butane
- propylene and propane
- butane and propane
A: propylene and propane

Q: Oxygen cylinders must be tested _____.
- annually
- every three years
- every five years
- every ten years
A: every ten years

Q: Combining pure oxygen with a burning material causes a fire to _____.
- burn rapidly and violently
- pop loudly and extinguish
- die down and then flare up
- burn cooler and more slowly
A: burn rapidly and violently

Q: In the top and bottom of an acetylene cylinder are safety plugs with a melting point of _____.
- 212°F (100°C)
- 260°F (126.7°C)
- 300°F (148.9°C)
- 330°F (165.6°C)
A: 212°F (100°C)

Q: Three fuel gases other than acetylene used for cutting include _____.
- argon, oxygen, and helium
- methane, butane, and oxygen
- natural gas, propylene, and propane
- benzene, halon, and fluorine
A: natural gas, propylene, and propane

Q: As a reminder that the regulator on a cylinder has left-handed threads, a V-notch is sometimes cut around the _____.
- regulator
- cylinder
- threads
- nut
A: nut

Q: The hoses used to carry oxygen from the cylinder to the torch are usually _____.
- red
- blue
- green
- orange
A: green

Q: The special cutting tip for cutting off bolt heads and nuts is called a _____.
- gouging tip
- flue cutting tip
- rivet cutting tip
- piercing tip
A: rivet cutting tip

Q: The selection of a cutting torch tip depends on the thickness of the base metal being cut and the _____.
- size of the fuel hoses
- size of the torch
- type of fuel gas being used
- size of the oxygen cylinder
A: type of fuel gas being used

Q: Tip cleaners are _____.
- strong detergents used to dissolve carbon buildup in torch tips
- small round files used to remove impurities from a torch tip
- solvent tanks and pumps used to force solvent through the tip openings
- high-velocity nozzles used to blow debris from a torch tip
A: small round files used to remove impurities from a torch tip

Q: A track burner is a device used to _____.
- cut railroad tracks
- weld pipe
- cut or bevel in a straight line
- cut holes in plate
A: cut or bevel in a straight line

Q: How should gas cylinders be transported to a workstation?
- Carried by hand with one worker on each end of the cylinder
- Lying flat in a cylinder cart or truck
- Rolled carefully by a qualified worker from the storage area
- In an upright position on a hand truck or bottle cart
A: In an upright position on a hand truck or bottle cart

Q: What devices are often attached to the regulators, the torch, or both?
- Flashback arrestors
- Needle valves
- Cutting orifices
- Leak detectors
A: Flashback arrestors

Q: An oxyfuel cutting torch should be checked for leaks _____.
- each time it is used
- once a week
- every month
- after 1,000 hours
A: each time it is used

Q: A cutting flame that has an excess of oxygen is called a(n) _____.
- cold flame
- neutral flame
- carburizing flame
- oxidizing flame
A: oxidizing flame

Q: A carburizing flame has a white feather created by _____.
- too much oxygen
- too little carbon
- too much fuel
- too much vacuum
A: too much fuel

Q: What can occur when a torch tip or nozzle touches the work surface or when a bit of hot dross briefly interrupts the cutting flame?
- Carburization
- Backfire
- Oxidation
- Flashpoint
A: Backfire

Q: When a cutting job is completed and the oxyfuel equipment is no longer needed, the first step in shutting down the oxyfuel cutting equipment is to _____.
- close the fuel gas cylinder valve
- back out the fuel gas and oxygen regulator adjusting screws
- open the fuel gas torch valve
- open the oxygen torch valve
A: close the fuel gas cylinder valve

Q: When an empty cylinder has been removed from the workstation and stored, it must be marked MT (or the acceptable site notation for indicating an empty cylinder) _____.
- near its top
- on the middle of its side
- on its bottom
- on its lower third
A: near its top

Q: Insufficient preheat during an oxyfuel cutting operation is likely to result in _____.
- the top surface melting over the cut
- bad gouging at the bottom of the cut
- a pronounced break in the drag line
- a wavy and irregular kerf
A: bad gouging at the bottom of the cut

Q: To minimize distortion when cutting thin steel, _____.
- avoid preheating the metal before starting the cut
- keep the cutting tip perpendicular to the metal's surface
- move as quickly as possible without losing the cut
- preheat the metal until it is near its melting point
A: move as quickly as possible without losing the cut

Q: When cutting thin steel with oxyfuel cutting equipment, point the torch tip in the direction the torch is traveling at a _____.
- 10- to 12-degree angle
- 15- to 20-degree angle
- 21- to 25-degree angle
- 30- to 35-degree angle
A: 15- to 20-degree angle

Q: What becomes less of a problem as the thickness of the steel being cut increases?
- Distortion
- Blowback
- Backfire
- Piercing
A: Distortion

Q: The process of cutting a groove into a surface is known as _____.
- gouging
- washing
- brushing
- short-cutting
A: gouging

Q: Gouging operations use a special tip that produces a low-velocity stream of oxygen that _____.
- blows downward
- pierces the workpiece
- distorts the flame
- curves upward
A: curves upward

Q: Portable oxyfuel track burners can be used for _____.
- stationary cutting, but not bevel cutting
- straight-line cutting and bevel cutting
- movable cutting, but not straight-line cutting
- both drag cutting and kerfless cutting
A: straight-line cutting and bevel cutting

Q: The circuit breaker supplying electricity to your welding machine should be shut off _____.
- only if it the circuit needs to be reset
- only if there is a problem with the welding machine
- before disconnecting the welding machine
- after disconnecting the welding machine
A: before disconnecting the welding machine

Q: You should inspect your fall protection equipment _____.
- before each use
- weekly
- monthly
- annually
A: before each use

Q: SMAW power supplies are designed to produce an output current that _____.
- is nearly constant
- is at least 500 amps
- is never more than 100 amps
- varies constantly from one bead to another
A: is nearly constant

Q: Most engine-powered welding machines turn a generator that produces _____.
- AC current
- DC current
- a pulsed AC waveform
- a pulsed DC waveform
A: DC current

Q: A step-down transformer converts _____.
- power at 60 Hz to a higher frequency
- power at 60 Hz to a lower frequency
- a low voltage to a higher voltage
- a higher voltage to a lower voltage
A: a higher voltage to a lower voltage

Q: Inverter-controlled welding machines are smaller, lighter power sources that also _____.
- offer a very smooth and steady DC welding arc
- offer a very smooth and steady AC welding arc
- use significantly more power to operate
- reduces the AC power frequency well below 60 Hz
A: offer a very smooth and steady DC welding arc

Q: The capacity of an arc welding machine is determined by its rated amperage and _____.
- duty cycle
- voltage
- electrode size
- function
A: duty cycle

Q: A DINSE^®-style connector is _____.
- a different type of workpiece clamp
- a quick-disconnect style for welding leads
- a new type of electrode holder
- used to connect a welding machine to its primary power supply
A: a quick-disconnect style for welding leads

Q: When selecting a workpiece clamp, be sure that it is rated _____.
- at least as high as the rated capacity of the welding machine
- no more than half of the rated capacity of the welding machine
- less than the median rated capacity of the welding machine
- at twice as high as the rated capacity of the welding machine
A: at least as high as the rated capacity of the welding machine

Q: Chipping slag and other coatings from finished welds requires _____.
- written procedures to dispose of the material removed
- tools including sanders, nylon brushes, or picks
- hazardous material suits, gloves, and gauntlets
- eye protection, including goggles or face shields
A: eye protection, including goggles or face shields

Q: Weld slag chippers and needle scalers are typically _____.
- pneumatically powered tools
- hand tools
- ultrasonic tools
- battery-powered tools
A: pneumatically powered tools

Q: If a welding machine starts to fall over, _____.
- grab a pry-bar to attempt to slow the fall down with leverage
- immediately pull the local fire alarm
- get clear and do not attempt to stop it yourself
- intervene and try to return it to an upright position using physical strength
A: get clear and do not attempt to stop it yourself

Q: When stringing welding cable overhead or between floors, tie off the cables with _____.
- cable
- wire
- chain
- rope
A: rope

Q: Avoid exposing a lead-acid battery to _____.
- temperatures below 50°F (10°C)
- sparks or arcs of any type
- more than two hours of use each day
- nitrogen
A: sparks or arcs of any type

Q: The preventive maintenance schedule for an engine-driven welding machine is usually based on _____.
- insurance requirements
- the number of welds made
- fuel consumption figures
- the number of hours that the engine operates
A: the number of hours that the engine operates

Q: The weld bead in SMAW is formed by the _____.
- electrode wire core alone
- base metal mixing with the flux
- flux coating
- electrode wire core mixing with molten base metal
A: electrode wire core mixing with molten base metal

Q: Which American Welding Society (AWS) specification(s) cover the most common electrodes for welding carbon (mild) steel and low-alloy, high strength steels?
- A5.1 and A5.3
- A5.1 and A5.5
- A5.11
- A5.24
A: A5.1 and A5.5

Q: The rated tensile strength of the deposited weld metal from an E7018 electrode is _____.
- 7,018 psi
- 18,000 psi
- 70,000 psi
- 180,000 psi
A: 70,000 psi

Q: All SMAW electrodes used for code-governed work must have the AWS classification number printed on them as well as on the _____.
- container in which they are shipped
- oven in which they will be stored
- matching electrode holder
- final weld
A: container in which they are shipped

Q: Electrodes with powdered iron in their flux belong to the _____.
- fast-fill (F1) electrode group
- fill-freeze (F2) electrode group
- fast-freeze (F3) electrode group
- low-hydrogen (F4) electrode group
A: fast-fill (F1) electrode group

Q: A SMAW electrode number that ends with an R means that it _____.
- is rod-shaped, rather than a wire spool
- is moisture-resistant
- contains a rust-preventative
- is a universal rod for all applications
A: is moisture-resistant

Q: An example of a deep-penetrating SMAW electrode, such as one that would be used for poorly prepared surfaces or butt joints, is _____.
- E7024
- E7028
- E6010
- E6013
A: E6010

Q: Welding in vertical and overhead positions should not be attempted with SMAW electrodes larger then 3/16" in diameter unless the electrode is classified as _____.
- low-hydrogen (F4)
- fast-freeze (F3)
- fill-freeze (F2)
- fast-fill (F1)
A: low-hydrogen (F4)

Q: After a sealed container of low-hydrogen SMAW electrodes is opened, the electrodes must be stored in an appropriate oven at a minimum temperature setting of _____.
- 100°F
- 150°F
- 200°F
- 250°F
A: 250°F

Q: Low-hydrogen electrodes that have been exposed to liquid water should be _____.
- used only for non-nuclear applications
- dried at a temperature of at least 500°F (260°C)
- dried for at least 10 days
- disposed of
A: disposed of

Q: The most suitable cutting process to use on ferrous metals such as straight carbon steel is _____.
- carbon arc cutting
- oxyfuel cutting
- powder cutting
- plasma arc cutting
A: oxyfuel cutting

Q: The oxidation that occurs during an oxyfuel cutting operation is similar to a greatly sped-up _____.
- tempering process
- annealing process
- rusting process
- crystallizing process
A: rusting process

Q: For long-term cutting of materials containing cadmium or mercury, always wear an approved _____.
- supplied air respirator
- metal-fume filter
- HEPA-rated filter
- standard respirator
A: supplied air respirator

Q: When performing oxyfuel cutting, it is acceptable to wear _____.
- a cap and safety glasses
- a face shield over safety glasses
- a hard hat and sunglasses
- a vented mesh cotton hood
A: a face shield over safety glasses

Q: Two types of gases that tend to concentrate in and along low areas are _____.
- acetylene and propylene
- methane and butane
- propylene and propane
- butane and propane
A: propylene and propane

Q: Oxygen cylinders must be tested _____.
- annually
- every three years
- every five years
- every ten years
A: every ten years

Q: Combining pure oxygen with a burning material causes a fire to _____.
- burn rapidly and violently
- pop loudly and extinguish
- die down and then flare up
- burn cooler and more slowly
A: burn rapidly and violently

Q: In the top and bottom of an acetylene cylinder are safety plugs with a melting point of _____.
- 212°F (100°C)
- 260°F (126.7°C)
- 300°F (148.9°C)
- 330°F (165.6°C)
A: 212°F (100°C)

Q: Three fuel gases other than acetylene used for cutting include _____.
- argon, oxygen, and helium
- methane, butane, and oxygen
- natural gas, propylene, and propane
- benzene, halon, and fluorine
A: natural gas, propylene, and propane

Q: As a reminder that the regulator on a cylinder has left-handed threads, a V-notch is sometimes cut around the _____.
- regulator
- cylinder
- threads
- nut
A: nut

Q: The hoses used to carry oxygen from the cylinder to the torch are usually _____.
- red
- blue
- green
- orange
A: green

Q: The special cutting tip for cutting off bolt heads and nuts is called a _____.
- gouging tip
- flue cutting tip
- rivet cutting tip
- piercing tip
A: rivet cutting tip

Q: The selection of a cutting torch tip depends on the thickness of the base metal being cut and the _____.
- size of the fuel hoses
- size of the torch
- type of fuel gas being used
- size of the oxygen cylinder
A: type of fuel gas being used

Q: Tip cleaners are _____.
- strong detergents used to dissolve carbon buildup in torch tips
- small round files used to remove impurities from a torch tip
- solvent tanks and pumps used to force solvent through the tip openings
- high-velocity nozzles used to blow debris from a torch tip
A: small round files used to remove impurities from a torch tip

Q: A track burner is a device used to _____.
- cut railroad tracks
- weld pipe
- cut or bevel in a straight line
- cut holes in plate
A: cut or bevel in a straight line

Q: How should gas cylinders be transported to a workstation?
- Carried by hand with one worker on each end of the cylinder
- Lying flat in a cylinder cart or truck
- Rolled carefully by a qualified worker from the storage area
- In an upright position on a hand truck or bottle cart
A: In an upright position on a hand truck or bottle cart

Q: What devices are often attached to the regulators, the torch, or both?
- Flashback arrestors
- Needle valves
- Cutting orifices
- Leak detectors
A: Flashback arrestors

Q: An oxyfuel cutting torch should be checked for leaks _____.
- each time it is used
- once a week
- every month
- after 1,000 hours
A: each time it is used

Q: A cutting flame that has an excess of oxygen is called a(n) _____.
- cold flame
- neutral flame
- carburizing flame
- oxidizing flame
A: oxidizing flame

Q: A carburizing flame has a white feather created by _____.
- too much oxygen
- too little carbon
- too much fuel
- too much vacuum
A: too much fuel

Q: What can occur when a torch tip or nozzle touches the work surface or when a bit of hot dross briefly interrupts the cutting flame?
- Carburization
- Backfire
- Oxidation
- Flashpoint
A: Backfire

Q: When a cutting job is completed and the oxyfuel equipment is no longer needed, the first step in shutting down the oxyfuel cutting equipment is to _____.
- close the fuel gas cylinder valve
- back out the fuel gas and oxygen regulator adjusting screws
- open the fuel gas torch valve
- open the oxygen torch valve
A: close the fuel gas cylinder valve

Q: When an empty cylinder has been removed from the workstation and stored, it must be marked MT (or the acceptable site notation for indicating an empty cylinder) _____.
- near its top
- on the middle of its side
- on its bottom
- on its lower third
A: near its top

Q: Insufficient preheat during an oxyfuel cutting operation is likely to result in _____.
- the top surface melting over the cut
- bad gouging at the bottom of the cut
- a pronounced break in the drag line
- a wavy and irregular kerf
A: bad gouging at the bottom of the cut

Q: To minimize distortion when cutting thin steel, _____.
- avoid preheating the metal before starting the cut
- keep the cutting tip perpendicular to the metal's surface
- move as quickly as possible without losing the cut
- preheat the metal until it is near its melting point
A: move as quickly as possible without losing the cut

Q: When cutting thin steel with oxyfuel cutting equipment, point the torch tip in the direction the torch is traveling at a _____.
- 10- to 12-degree angle
- 15- to 20-degree angle
- 21- to 25-degree angle
- 30- to 35-degree angle
A: 15- to 20-degree angle

Q: What becomes less of a problem as the thickness of the steel being cut increases?
- Distortion
- Blowback
- Backfire
- Piercing
A: Distortion

Q: The process of cutting a groove into a surface is known as _____.
- gouging
- washing
- brushing
- short-cutting
A: gouging

Q: Gouging operations use a special tip that produces a low-velocity stream of oxygen that _____.
- blows downward
- pierces the workpiece
- distorts the flame
- curves upward
A: curves upward

Q: Portable oxyfuel track burners can be used for _____.
- stationary cutting, but not bevel cutting
- straight-line cutting and bevel cutting
- movable cutting, but not straight-line cutting
- both drag cutting and kerfless cutting
A: straight-line cutting and bevel cutting

Q: The circuit breaker supplying electricity to your welding machine should be shut off _____.
- only if it the circuit needs to be reset
- only if there is a problem with the welding machine
- before disconnecting the welding machine
- after disconnecting the welding machine
A: before disconnecting the welding machine

Q: You should inspect your fall protection equipment _____.
- before each use
- weekly
- monthly
- annually
A: before each use

Q: SMAW power supplies are designed to produce an output current that _____.
- is nearly constant
- is at least 500 amps
- is never more than 100 amps
- varies constantly from one bead to another
A: is nearly constant

Q: Most engine-powered welding machines turn a generator that produces _____.
- AC current
- DC current
- a pulsed AC waveform
- a pulsed DC waveform
A: DC current

Q: A step-down transformer converts _____.
- power at 60 Hz to a higher frequency
- power at 60 Hz to a lower frequency
- a low voltage to a higher voltage
- a higher voltage to a lower voltage
A: a higher voltage to a lower voltage

Q: Inverter-controlled welding machines are smaller, lighter power sources that also _____.
- offer a very smooth and steady DC welding arc
- offer a very smooth and steady AC welding arc
- use significantly more power to operate
- reduces the AC power frequency well below 60 Hz
A: offer a very smooth and steady DC welding arc

Q: The capacity of an arc welding machine is determined by its rated amperage and _____.
- duty cycle
- voltage
- electrode size
- function
A: duty cycle

Q: A DINSE^®-style connector is _____.
- a different type of workpiece clamp
- a quick-disconnect style for welding leads
- a new type of electrode holder
- used to connect a welding machine to its primary power supply
A: a quick-disconnect style for welding leads

Q: When selecting a workpiece clamp, be sure that it is rated _____.
- at least as high as the rated capacity of the welding machine
- no more than half of the rated capacity of the welding machine
- less than the median rated capacity of the welding machine
- at twice as high as the rated capacity of the welding machine
A: at least as high as the rated capacity of the welding machine

Q: Chipping slag and other coatings from finished welds requires _____.
- written procedures to dispose of the material removed
- tools including sanders, nylon brushes, or picks
- hazardous material suits, gloves, and gauntlets
- eye protection, including goggles or face shields
A: eye protection, including goggles or face shields

Q: Weld slag chippers and needle scalers are typically _____.
- pneumatically powered tools
- hand tools
- ultrasonic tools
- battery-powered tools
A: pneumatically powered tools

Q: If a welding machine starts to fall over, _____.
- grab a pry-bar to attempt to slow the fall down with leverage
- immediately pull the local fire alarm
- get clear and do not attempt to stop it yourself
- intervene and try to return it to an upright position using physical strength
A: get clear and do not attempt to stop it yourself

Q: When stringing welding cable overhead or between floors, tie off the cables with _____.
- cable
- wire
- chain
- rope
A: rope

Q: Avoid exposing a lead-acid battery to _____.
- temperatures below 50°F (10°C)
- sparks or arcs of any type
- more than two hours of use each day
- nitrogen
A: sparks or arcs of any type

Q: The preventive maintenance schedule for an engine-driven welding machine is usually based on _____.
- insurance requirements
- the number of welds made
- fuel consumption figures
- the number of hours that the engine operates
A: the number of hours that the engine operates

Q: The weld bead in SMAW is formed by the _____.
- electrode wire core alone
- base metal mixing with the flux
- flux coating
- electrode wire core mixing with molten base metal
A: electrode wire core mixing with molten base metal

Q: Which American Welding Society (AWS) specification(s) cover the most common electrodes for welding carbon (mild) steel and low-alloy, high strength steels?
- A5.1 and A5.3
- A5.1 and A5.5
- A5.11
- A5.24
A: A5.1 and A5.5

Q: The rated tensile strength of the deposited weld metal from an E7018 electrode is _____.
- 7,018 psi
- 18,000 psi
- 70,000 psi
- 180,000 psi
A: 70,000 psi

Q: All SMAW electrodes used for code-governed work must have the AWS classification number printed on them as well as on the _____.
- container in which they are shipped
- oven in which they will be stored
- matching electrode holder
- final weld
A: container in which they are shipped

Q: Electrodes with powdered iron in their flux belong to the _____.
- fast-fill (F1) electrode group
- fill-freeze (F2) electrode group
- fast-freeze (F3) electrode group
- low-hydrogen (F4) electrode group
A: fast-fill (F1) electrode group

Q: A SMAW electrode number that ends with an R means that it _____.
- is rod-shaped, rather than a wire spool
- is moisture-resistant
- contains a rust-preventative
- is a universal rod for all applications
A: is moisture-resistant

Q: An example of a deep-penetrating SMAW electrode, such as one that would be used for poorly prepared surfaces or butt joints, is _____.
- E7024
- E7028
- E6010
- E6013
A: E6010

Q: Welding in vertical and overhead positions should not be attempted with SMAW electrodes larger then 3/16" in diameter unless the electrode is classified as _____.
- low-hydrogen (F4)
- fast-freeze (F3)
- fill-freeze (F2)
- fast-fill (F1)
A: low-hydrogen (F4)

Q: After a sealed container of low-hydrogen SMAW electrodes is opened, the electrodes must be stored in an appropriate oven at a minimum temperature setting of _____.
- 100°F
- 150°F
- 200°F
- 250°F
A: 250°F

Q: Low-hydrogen electrodes that have been exposed to liquid water should be _____.
- used only for non-nuclear applications
- dried at a temperature of at least 500°F (260°C)
- dried for at least 10 days
- disposed of
A: disposed of

Q: The most suitable cutting process to use on ferrous metals such as straight carbon steel is _____.
- carbon arc cutting
- oxyfuel cutting
- powder cutting
- plasma arc cutting
A: oxyfuel cutting

Q: The oxidation that occurs during an oxyfuel cutting operation is similar to a greatly sped-up _____.
- tempering process
- annealing process
- rusting process
- crystallizing process
A: rusting process

Q: For long-term cutting of materials containing cadmium or mercury, always wear an approved _____.
- supplied air respirator
- metal-fume filter
- HEPA-rated filter
- standard respirator
A: supplied air respirator

Q: When performing oxyfuel cutting, it is acceptable to wear _____.
- a cap and safety glasses
- a face shield over safety glasses
- a hard hat and sunglasses
- a vented mesh cotton hood
A: a face shield over safety glasses

Q: Two types of gases that tend to concentrate in and along low areas are _____.
- acetylene and propylene
- methane and butane
- propylene and propane
- butane and propane
A: propylene and propane

Q: Oxygen cylinders must be tested _____.
- annually
- every three years
- every five years
- every ten years
A: every ten years

Q: Combining pure oxygen with a burning material causes a fire to _____.
- burn rapidly and violently
- pop loudly and extinguish
- die down and then flare up
- burn cooler and more slowly
A: burn rapidly and violently

Q: In the top and bottom of an acetylene cylinder are safety plugs with a melting point of _____.
- 212°F (100°C)
- 260°F (126.7°C)
- 300°F (148.9°C)
- 330°F (165.6°C)
A: 212°F (100°C)

Q: Three fuel gases other than acetylene used for cutting include _____.
- argon, oxygen, and helium
- methane, butane, and oxygen
- natural gas, propylene, and propane
- benzene, halon, and fluorine
A: natural gas, propylene, and propane

Q: As a reminder that the regulator on a cylinder has left-handed threads, a V-notch is sometimes cut around the _____.
- regulator
- cylinder
- threads
- nut
A: nut

Q: The hoses used to carry oxygen from the cylinder to the torch are usually _____.
- red
- blue
- green
- orange
A: green

Q: The special cutting tip for cutting off bolt heads and nuts is called a _____.
- gouging tip
- flue cutting tip
- rivet cutting tip
- piercing tip
A: rivet cutting tip

Q: The selection of a cutting torch tip depends on the thickness of the base metal being cut and the _____.
- size of the fuel hoses
- size of the torch
- type of fuel gas being used
- size of the oxygen cylinder
A: type of fuel gas being used

Q: Tip cleaners are _____.
- strong detergents used to dissolve carbon buildup in torch tips
- small round files used to remove impurities from a torch tip
- solvent tanks and pumps used to force solvent through the tip openings
- high-velocity nozzles used to blow debris from a torch tip
A: small round files used to remove impurities from a torch tip

Q: A track burner is a device used to _____.
- cut railroad tracks
- weld pipe
- cut or bevel in a straight line
- cut holes in plate
A: cut or bevel in a straight line

Q: How should gas cylinders be transported to a workstation?
- Carried by hand with one worker on each end of the cylinder
- Lying flat in a cylinder cart or truck
- Rolled carefully by a qualified worker from the storage area
- In an upright position on a hand truck or bottle cart
A: In an upright position on a hand truck or bottle cart

Q: What devices are often attached to the regulators, the torch, or both?
- Flashback arrestors
- Needle valves
- Cutting orifices
- Leak detectors
A: Flashback arrestors

Q: An oxyfuel cutting torch should be checked for leaks _____.
- each time it is used
- once a week
- every month
- after 1,000 hours
A: each time it is used

Q: A cutting flame that has an excess of oxygen is called a(n) _____.
- cold flame
- neutral flame
- carburizing flame
- oxidizing flame
A: oxidizing flame

Q: A carburizing flame has a white feather created by _____.
- too much oxygen
- too little carbon
- too much fuel
- too much vacuum
A: too much fuel

Q: What can occur when a torch tip or nozzle touches the work surface or when a bit of hot dross briefly interrupts the cutting flame?
- Carburization
- Backfire
- Oxidation
- Flashpoint
A: Backfire

Q: When a cutting job is completed and the oxyfuel equipment is no longer needed, the first step in shutting down the oxyfuel cutting equipment is to _____.
- close the fuel gas cylinder valve
- back out the fuel gas and oxygen regulator adjusting screws
- open the fuel gas torch valve
- open the oxygen torch valve
A: close the fuel gas cylinder valve

Q: When an empty cylinder has been removed from the workstation and stored, it must be marked MT (or the acceptable site notation for indicating an empty cylinder) _____.
- near its top
- on the middle of its side
- on its bottom
- on its lower third
A: near its top

Q: Insufficient preheat during an oxyfuel cutting operation is likely to result in _____.
- the top surface melting over the cut
- bad gouging at the bottom of the cut
- a pronounced break in the drag line
- a wavy and irregular kerf
A: bad gouging at the bottom of the cut

Q: To minimize distortion when cutting thin steel, _____.
- avoid preheating the metal before starting the cut
- keep the cutting tip perpendicular to the metal's surface
- move as quickly as possible without losing the cut
- preheat the metal until it is near its melting point
A: move as quickly as possible without losing the cut

Q: When cutting thin steel with oxyfuel cutting equipment, point the torch tip in the direction the torch is traveling at a _____.
- 10- to 12-degree angle
- 15- to 20-degree angle
- 21- to 25-degree angle
- 30- to 35-degree angle
A: 15- to 20-degree angle

Q: What becomes less of a problem as the thickness of the steel being cut increases?
- Distortion
- Blowback
- Backfire
- Piercing
A: Distortion

Q: The process of cutting a groove into a surface is known as _____.
- gouging
- washing
- brushing
- short-cutting
A: gouging

Q: Gouging operations use a special tip that produces a low-velocity stream of oxygen that _____.
- blows downward
- pierces the workpiece
- distorts the flame
- curves upward
A: curves upward

Q: Portable oxyfuel track burners can be used for _____.
- stationary cutting, but not bevel cutting
- straight-line cutting and bevel cutting
- movable cutting, but not straight-line cutting
- both drag cutting and kerfless cutting
A: straight-line cutting and bevel cutting

Q: Which of these welding methods uses a flux-coated consumable welding rod?
- SMAW
- GTAW
- FCAW
- GMAW
A: SMAW

Q: In which of these processes is acetylene used?
- Gas tungsten arc welding
- Carbon arc cutting
- Flux core arc welding
- Oxyfuel cutting
A: Oxyfuel cutting

Q: In the oxyfuel cutting process, which of the following is used as a fuel gas?
- Oxygen
- Propane
- Nitrogen
- Argon
A: Propane

Q: Apprenticeship programs in the United States must be registered with _____.
- NCCER
- the US Dept. of Labor
- OSHA
- Homeland Security
A: the US Dept. of Labor

Q: All of the following fabrics may be worn around sources of sparks or high heat except _____.
- cotton
- wool
- polyester
- leather
A: polyester

Q: Compared to a full leather welding jacket, a welding cape is _____.
- cooler
- warmer
- more protective
- more durable
A: cooler

Q: Which of the following is a correct statement regarding personal protective equipment?
- If tennis shoes are worn while welding, spats must also be worn.
- Leathers are only needed during cutting operations.
- Disposable earplugs are the most common form of hearing protection used in welding.
- The minimum protective shade of eye protection for SMAW is 4.
A: Disposable earplugs are the most common form of hearing protection used in welding.

Q: The risk of flash burn can be reduced by _____.
- wearing chaps and spats
- looking slightly to the left or right of the arc while welding
- wearing a welding cap with the visor turned backwards
- wearing safety glasses and a hood with a properly tinted lens
A: wearing safety glasses and a hood with a properly tinted lens

Q: The recognized national standard in the United States for safety in welding is _____.
- ASME Boiler and Pressure Vessel Code, Section II
- American Welding Society Structural Welding Code D1.1
- API 1104, Standard for Welding Pipelines and Related Facilities
- ANSI Z49.1 Safety in Welding, Cutting, and Allied Processes
A: ANSI Z49.1 Safety in Welding, Cutting, and Allied Processes

Q: Foot and vehicle traffic in the workplace is _____.
- not usually a factor when determining hazards
- of particular concern for workers over eighteen
- more hazardous at starting and quitting times
- regulated by the authority having jurisdiction
A: more hazardous at starting and quitting times

Q: In addition to protecting other workers from exposure to electric arcs, welding screens _____.
- prevent drafts from interfering with the stability of the arc
- reduce glare on the workpiece
- mark a confined space
- support workpieces for overhead welding
A: prevent drafts from interfering with the stability of the arc

Q: The most common welding accident is _____.
- electrocution
- arc burns to the eyes
- burns on the hands and arms
- falls from heights
A: burns on the hands and arms

Q: A document issued by the site manager that allows a welder to perform operations where there is a potential risk of fire is a _____.
- welder qualification record
- confined space entry permit
- welding procedure specification
- hot work permit
A: hot work permit

Q: What concentration of oxygen, in percent by volume, is considered normal and safe to work in?
- Less than 6
- 6 to 16
- 19.5 to 21.5
- More than 23.5
A: 19.5 to 21.5

Q: Grounding of a welding machine usually involves _____.
- setting it on bare earth
- plugging it in to a three-prong receptacle
- plugging it in to a ground fault circuit interrupter
- connecting the machine's ground terminal to a known ground source
A: connecting the machine's ground terminal to a known ground source

Q: Which of these metals has been linked to Parkinson's Disease?
- Beryllium
- Manganese
- Copper
- Carbon steel
A: Manganese

Q: How close should a high vacuum/low volume exhaust inlet be located to the source of welding fumes?
- 2" to 4" (≈5 to 10 cm)
- 6" to 8" (≈15 to 20 cm)
- 12" to 14" (≈30 to 36 cm)
- At least 12 feet (≈3.66 meters) away
A: 2" to 4" (≈5 to 10 cm)

Q: An air-purifying respirator should be changed _____.
- after every eight-hour work shift
- after 24 hours of total use
- when the wearer detects any taste or smell
- three days after the filter cartridge is installed
A: when the wearer detects any taste or smell

Q: The proper selection of a respirator is based on the _____.
- user's size and level of activity
- contaminant present and its concentration
- amount of time it will be worn
- wearer's personal preference
A: contaminant present and its concentration

Q: Which of these is the correct statement regarding SDSs/MSDSs?
- They are only required for acids.
- They need only be stored at the employee's corporate offices.
- They must be available at the job site to workers.
- Workers must be provided access to them through the Internet.
A: They must be available at the job site to workers.