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A program that provides hands-on theoretical knowledge in welding techniques and processes for fabricating and joining metal components efficiently and safely.
_____ oxygen cylinders have a double wall construction to help maintain a vacuum, and such cylinders should be handled with extreme care.
Oxygen should be _____ with the valve end up.
Oxygen cylinders should never be stored near _____ such as acetylene cylinders.
Never use acetylene from a cylinder lying on its side because acetone withdrawn with the acetylene could explode.
ANSI Z49.1 allows oxygen to be used as a substitute for compressed air when necessary.
7. Welding may produce fumes and gases _________ to health. Avoid breathing these fumes and gases. Use adequate ventilation.
Whenusing a fire extinguisher to extinguish a fire, it should be
Which of the following us the best way to identify hydrogen controlled electrodes for the MMA welding process?
Never engage in _____.
A WPS may specify a maximum width for individual weld beads (the weave width) when welding C-Mn steels. if the width is exceeded it may cause:
Which of the following would be considered a typical heat input reading with the MIG/MAG welding process?
Vaporized metals such as zinc, cadmium, lead, chromium, and beryllium
Always keep welding equipment in _____.
Because they _____, some nonflammable shielding gases such as argon, nitrogen, carbon dioxide, and helium should be stored in well ventilated areas.
The area identified at position 8 is the?
8.Do not operate the _________switch while the machine is operating under welding current load. Consequent arcing at the switch will damage the contact surfaces and the flash may burn the person operating the switch.
If welding travel speed is doubled but the current and voltage remain the same the heat input will be:
What is the indication at position 9 and would you accept or reject the indication to the given acceptance levels?
Tungsten is used forGTAW electrodes because it has which of the following properties?
Skin contact with liquid oxygen can cause frostbite.
What is an "inert gas" as used in Metal Inert Gas (MIG) Welding?
What is the indication at position 1 and would you accept or reject the indication to the given acceptance levels?
Oxygen cylinders should never be stored with flammable gases such as acetylene cylinders.
One should never operatearc welding equipment while
What is the indication at position 7 and would you accept or reject the indication to the given acceptance levels?
What is the indication at position 8 and would you accept or reject the indication to the given acceptance levels?
What is the indication at position 10 and would you accept or reject the indication to the given acceptance levels?
What does the number 141 refer to when it is written next to the tail when using symbols?
A qualified Welding Procedure Specification is used to:
How would you prepare a 25mm low carbon steel flat bar for a butt weld?
Fuel gas hoses are usually colored
What is the indication at position 6 and would you accept or reject the indication to the given acceptance levels?
What type of respiratory protection is the minimum required when welding?
An arc strike (stray flash) on a steel component is regarded by some codes as unacceptable because:
What are theinitials of the federal organization created to insure safe and sanitary working conditions foremployees?
When not in use, keep cables and hosescoiled free of kinks and properly stored.
A welder is welding and wearing a welding helmet, the right lens shade, and safety glasses, but the welder is in a short sleeved shirt.
What is the indication at position 3 and would you accept or reject the indication to the given acceptance levels?
What is the indication at position 9 and would you accept or reject the indication to the given acceptance levels?
What is the indication at position 7 and would you accept or reject the indication to the given acceptance levels?
Weld spatter during MMA welding is most likely to be caused by:
The arc flash from an arc welding station is clearly visibleto people who have to walk to the shop office.
In order to reduce waste and control cost,you should weld until the electrode is
What is the purpose of the rectifier in welding sets electrical circuit?
Whilewelding, ventilation should be placed as close to the fume source as practical.
Fuelgas hoses are usually colored
What is the indication at position 6 and would you accept or reject the indication to the given acceptance levels?
What should one never use on gas cylinders, regulators, connections and hoses?
Areas that have less than ____ cubic feet per welder, or that have ceilings less than 16 feet high, require forced ventilation.
What treatment is recommended after welding stainless steel?
In an MMA welding process, which of the following statements is false?
What type of fire extinguisher should be used on electrical fires?
What is the indication at position 5 and would you accept or reject the indication to the given acceptance levels?
What is the indication at position 9 and would you accept or reject the indication to the given acceptance levels?
Compressed gas cylinders shall be secured in an _____ position at all times
An MMA electrode classified as E7018 is:
Potential hazards related to arc welding are
For a given voltage and current setting on an MMA welding plant, when the arc length is shortened , which of them will be most affected?
Because of the low amount of ultraviolet light present, it is not necessary to use shaded lenses when oxy-fuel cutting.
Gas metal arc welding is also known as ___________________________ welding.
While stored, valve protection caps shall be in place and _____.
What is the indication at position 3 and would you accept or reject the indication to the given acceptance levels?
Burns are some of the most common and painful injuries in a welding shop.
The maaximum safe working pressure for acetylene is?
Safety glasses need to be worn:
In a transverse tensile test brittleness would be indicated if:
Make sure water-cooled systems have water turned off when shutting down.
What is the indication at position 7 and would you accept or reject the indication to the given acceptance levels?
What is the indication at position 1 and would you accept or reject the indication to the given acceptance levels?
The number 135 is placed at the end of the reference line on a weld symbol according to ISO 2553 what does the number indicate?
Do not wear eye protection with plastic lenses.
The chemical composition of the weld metal deposited by a C-Mn steel MMA electrode is usually controlled by:
While cutting withacetylene, the oxygen working pressure is
Which of the following elements is added to steel to give resistance to creep at elevated service temperatures?
A Hydrogen controlled MMA electrode can always be recognized by the:
Which oxyacetylene flame has an excess of fuel?
The area identified at position 9 is the?
Which fuel gas can be used to cut low-carbon steel?
A fully charged oxygen cylinder contains approximately 225 psi at 70 degrees F.
What is the indication at position 3 and would you accept or reject the indication to the given acceptance levels?
2. Remove all _____________ material such as cotton, oil, gasoline, etc., from the vicinity of welding.
One should never operate arc welding equipment while
Whichof the following is considered an advantage of the GMAW process?
What would be a typical appearance of a ductile fracture surface?
Federalregulation requires that hazardous information about a product be providedto all users of thatproduct. The form used to provide this information is called a(n)
What is the indication at position 7 and would you accept or reject the indication to the given acceptance levels?
Oxyacetylene torches can cut?
Store cylinders on _____ flooring only.
Compressed air may be used to clean sawdust off the ground:
A Hot Work Permit
What type of thread and color are fuel gas fittings?
Inside of buildings, cylinders shall be stored in a well-protected, well-ventilated, dry location at least _____ feet from highly combustable materials.
Eye protection can be worn over prescription glasses.
You are working with a GTAW machine that has a 20 percent duty cycle. You estimate the welding job will take at least 30 minutes. You know to:
Image: https://www.proprofs.com/quiz-school/upload/yuiupload/124933835.jpg
A fully charged oxygen cylinder containsapproximately 225 psi at 70° F.
Duplex stainless steel can be somtimes referred to as:
Never enter the welding shop without wearing _____.
What is the indication at position 4 and would you accept or reject the indication to the given acceptance levels?
What is the indication at position 10 and would you accept or reject the indication to the given acceptance levels?
One should never cut or weld directly against
Loose clothing, jewelry, and long hair must be securely fastened or removed:
Contact lenses can be melted to the cornea of the eye by electric arcs or sparks.
If an excessive amount of preheat is used when making an oxyfuel cut, the?
Burnsare some of the most common and painful injuries in a welding shop.
Whichshielding gas or gas mixture is most often used for welding carbon steelwith the short-circuiting transfer mode?
Always check welding areas to make sure they're _____.
Deflection of the arc by magnetic forces that can make welding difficult to control is commonly known as:
Which of the following is correct about safety colors:
What is the indication at position 6 and would you accept or reject the indication to the given acceptance levels?
Always _____ fellow students and co-workers.
Thebenefit of copper coated electrode wires is
Which of the following best describes a semi-automatic welding process?
Image: https://www.proprofs.com/quiz-school/upload/yuiupload/466428505.jpg
Floors, aisles, and passageways must be kept clear of metal, wood, tools, material, oil and grease spots, and other objects:
Disconnect and remove electrode holders and cables used for SMAW.
The maximum safe working pressure for Acetylene is
One should never enter a welding shop without wearing
For a welding job where there would be a danger that flying sparks might strike a welder around the head and ear area, what could make the situation safer?
What is the indication at position 4 and would you accept or reject the indication to the given acceptance levels?
Natural gas in cylinders should be handled with the same precautions as all other fuel gas cylinders.
Acetylene cylinders should never be operated while lying on their side because acetone could be drawn into the valve, regulator and hose.
Pre heat prior to the welding of a carbon steel but weld:
What is the indication at position 6 and would you accept or reject the indication to the given acceptance levels?
The current/polarity used for TIG welding of all materials except aluminum and magnesium is:
For a welding job that will require a welder to be welding out of position in a confined area, what could make the situation safer?
What is the indication at position 2 and would you accept or reject the indication to the given acceptance levels?
One should never touch an electrode to a metal surface other than the workpiece because those surfaces may become electrically live.
Fuel gas fittings are equipped with left handthreads.
During the visual inspection of a fillet weld with even lengths of 15mm.the throat thickness is measured at 8.5mm, what is the fillet welds profile?
What is the indication at position 2 and would you accept or reject the indication to the given acceptance levels?
5.Welders must wear safety glasses. When using chippers and grinders, use face shields in _________ to safety glasses.
What is the indication at position 2 and would you accept or reject the indication to the given acceptance levels?
What is the indication at position 2 and would you accept or reject the indication to the given acceptance levels?
Never use _____ on gas cylinders, regulators, connections, or hoses
Image: https://www.proprofs.com/quiz-school/upload/yuiupload/1219564688.jpg
If you found a tool to be faulty or dangerous, what should you do?
When not in use, an electrode holder GTAW torch or MIG gun should not be placed in contact with a grounded metal surface.
Mechanized OFC is commonly referred to as a track burner?
A typical temperature range for baking basic coated electrodes is:
What is the term forthe width of the cut produced by any cutting process?
What is the minimum recommended filter shade on a welding helmet to protect your eyes?
A burn that causes the skin to blister is referred to as a
Pipe bores of some materials must be purged with argon before and during TIG welding in order to:
What is the indication at position 1 and would you accept or reject the indication to the given acceptance levels?
InGMAW, insufficient gas flow can cause?
The area identified at position 8 is the?
Acetylene has a very narrow flammable range.
Potentialhazards relating to arc welding are
Oxygen cylinders should never be stored with flammable gases such as acetylene cylinders.
You should not use oxygen as a substitute for air.
The area identified at position 10 is the?
All accidents and injuries, no matter how slight, must be:
What type of threadand color are fuel gases fittings?
Silicon is added to steel and the covering of MMA electrodes in order to:
Which of thefollowing is the only acceptable method for lighting oxyfuel torches?
In GMAW, the amperageis controlled by adjusting the
Always respect gas cylinders as _____.
Never weld, cut, or grind near _____.
Which of the following fillet welded tee joints would have the highest resistance to fatigue fractures, assuming material, welding process, filler material to be the same?
Cylinders shall be moved by tilting and _____ them on their bottom edges.
Use welding cable covers.
4. Use safety goggles and a hand shield or helmet equipped with a suitable ________ glass to protect against the intense ultraviolet and infrared rays.
Exposure to zinc fumes may cause metal fume fever.
What should one never use on gas cylinders, regulators, connections and hoses?
In TIG welding, what is the benefit of a current slope-out device?It reduces...
Which of the following is an advantage of MIG welding?
Which of the following under typical conditions using the MMA welding process would give the deepest penetration?
What is the indication at position 3 and would you accept or reject the indication to the given acceptance levels?
What is the indication at position 5 and would you accept or reject the indication to the given acceptance levels?
What is the indication at position 6 and would you accept or reject the indication to the given acceptance levels?
As long as they are secure, fuel cylinders can be stored on their side.
What is the ratio between the leg length and design throat thickness on mitre fillet weld with equal leg lengths?
The toughness and yield strength of steel is reduced by:
Areas that have less than__________ cubic feet per welder, or that have ceilings less than 16 feethigh, require forced ventilation.
Longhair, loose-fitting clothes, and ties are personal safety hazards aroundrotating equipment.
Gas cylinders must be chained or secured at all times.
Never arc weld or operate electrical equipment while standing _____.
What is the indication at position 8 and would you accept or reject the indication to the given acceptance levels?
Haw can you tell the diffrence between an EN/ISO weld symbol and a BS weld symbol?
Gas cylinder must be chained or secured at all times.
Which of the following electrode types is classified as BS EN 499?
Acetylene cylinders should never be operated while lying on their side because acetone could be drawn into the valve, regulator and hoses.
What is the indication at position 7 and would you accept or reject the indication to the given acceptance levels?
Why shouldn't you wear nylon clothing when welding?
What two items on a MIG welder would need to be changed when changing from a 0.9mm mild steel wire electrode to a 1.2mm mild steel wire electrode?
3. Mark all hot metal after welding operations are completed. _____________is commonly used for this purpose.
In order to maintain production, it is acceptable to operate welding equipment beyond its rated capacity.
The area identified at position 9 is the?
Oneshould never cut or weld directly against
Safety glasses are not required when welding with the helmet down.
When welding with the MIG welding process using pure argon as the shielding gas on carbon steel, which of the following problems are likely to occur?
What is the possible effect of having heat input too low during welding?
A confined space is one that
Propane and MPS cylinders should be stored in clean, dry, well ventilated locations free from other combustables.
What is the indication at position 4 and would you accept or reject the indication to the given acceptance levels?
Never permit _____ to come in contact with a welding machine or gas cylinder.
While cutting with acetylene, the oxygen working pressure is?
The area identified at position 10 is the?
GMAW is theabbreviation for?
What are the initials of the federal organization created to ensure safe and sanitary working conditions for employees?
Weld centerline longitudinal cracks in welded butt joints may have resulted from which of the following?
Never _____ electrical equipment to a building member or a piece of equipment attached to or part of a building.
What is the indication at position 4 and would you accept or reject the indication to the given acceptance levels?
Which type of power source characteristic is normally used for manual welding?
Whichof the following is not an advantage of the GMAW process?
When considering thermal cutting local hardening can be reduced by:
Which of the following is the most likely to be considered an essential variable for a welder qualification test?
Never drape a welding cable over any type of gas cylinder, and NEVER strike an arc on a gas cylinder.
what is the arc energy for the following welding process parameters?
You notice TIG welding being carried out using MMA electrode striped of flux being used as filler wires .you would certainly report this issue and file a non-conformance report .what would the main reason why?
The oxyfuel cutting process uses oxygen and what other types of gases?
A burn that causesthe skin to blister is referred to as a
Both propane and MPS cylinders should be used and stored in the upright position.
Toremove the oxide layer from aluminum prior to welding you should
The main reason for grinding the capping passes flush is:
Vaporizedmetals, such as zinc, cadmium, lead, chromium and beryllium
One should never touch an electrode to a metal surface other than the workpiece because those surfaces may become electrically live.
Which of the following current types would you expect to be used for the welding of aluminium with the TIG welding process?
The inclusion rate an inductance in the welding circuit when using the MIG/MAG welding process is to:
Never cut into barrels, drums, or any container that has not been _____, or filled with water.
6. Flameproof aprons or jackets made of leather, fire resistant material, or other suitable material should be worn for ____________ against spatter of molten metal, radiated heat, and sparks.
Never interchange gas and water hoses without purging them first.
What is the indication at position 5 and would you accept or reject the indication to the given acceptance levels?
Avoid skin exposure to _____ because both gases are cold enough to cause frostbite.
Shielding is a process used to protect the eyes from welding fume.
Never operate _____ equipment
When considering the tungsten arc welding process what is the purpose of the down-slope (slope -out)control?
Use only solvents and rags to clean cables and hoses.
When considering hydrogen,which of the following welding process would produce the lowest levels in the completed weld (under controlled conditions)?
What is the indication at position 5 and would you accept or reject the indication to the given acceptance levels?
In an all weld metal tensile test, the original test specimens gauge length of 50mm after testing the gauge increased to 72mm, what is the elongation percentage?
What type of weld would you do to form a T shape between two pieces of flat bar?
When calibrating a mechanized MAG welding plant, which of the following applies(WFS=wire feed speed)?
Stick (Arc) Welding uses a coated electrode; what is the purpose of this coating?
What is the indication at position 7 and would you accept or reject the indication to the given acceptance levels?
How would you prepare heavily rusted mild steel for welding?
Since oxygen _____ may react violently in the presence of oil or grease, all oxygen fittings and equipment should be kept free of oil and grease.
When clean-up is called, all scrap metal should be:
What is the indication at position 4 and would you accept or reject the indication to the given acceptance levels?
An undesirable property of aluminium oxide residue ,when welding is that it:
For a welding job that poses the danger that flying sparks and metal might fall on a welder's legs, what could make the situation safer?
Which type of electrode is used for stovepipe welding for overland pipeline construction?
What is the indication at position 8 and would you accept or reject the indication to the given acceptance levels?
What is the indication at position 6 and would you accept or reject the indication to the given acceptance levels?
Never drag cables or hoses through dirt or oil, and never pull on a cable to force it over an obstruction.
In all cases, shielding gases should be used and stored in _____ position.
Which of thefollowing electrodes would you select to produce a weld with shallow penetration?
The area identified at position 3 is the?
When work is finished, when cylinders are moved at any time, or when cylinders are _____, cylinder valves shall be closed
Nick break and fillet fracture tests are used for assessing:
Only safety glasses need to be worn when grinding, chipping, cutting, or shaping metal with power tools.
Acetylene can be used with an oxyfuel cutting tip?
A butane or propane cigarette lighter is safe around welding equipment as long as it is kept in one's pocket.
According to AWS 2.4 a weld symbol for the other side is placed:
Acetylene cylinders should be protected against extreme temerature rises.
While welding, ventilation should be placed as close to the fume source as practical.
It is not necessary to wear shaded lenses when oxyfuel cutting, because it uses a flame instead of an electric arc.
Which of the following units is used to express heat input?
10. When welding is done near other ___________, screens should be used to protect their eyes from the arc or reflected glare.
Oneshould never enter a welding shop without wearing
Which of the following is the only acceptable method for lighting oxyfuel torches?
When not in use, an electrode holder, GTAW torch or MIG gun should not be placed in contact with a grounded metal surface.
When using a fire extinguisher to extinguish a fire, it should be
What is the indication at position 1 and would you accept or reject the indication to the given acceptance levels?
Which of the following steels is considered non-magnetic?
Whichof the following is an incorrect statement about an E7018electrode?
What is the indication at position 3 and would you accept or reject the indication to the given acceptance levels?
What is the indication at position 2 and would you accept or reject the indication to the given acceptance levels?
What is the indication at position 5 and would you accept or reject the indication to the given acceptance levels?
For a welding job that poses the danger that flying sparks and metal splattermight strike a welder in the chest or arms, what could make the situation safer?
Fuel cylinders must be stored at least ____ feet from combustibles.
Cylinder inspection requirements are regulated by the Department of__________.
Backflow prevention should be provided for oxygen cylinders
When performing a fillet weld between two pieces of 5mm thick mild steel, what is the recommended size (leg length) of the weld? (when not given a size)
Which term best describes this weld joint?
Never withdraw acetylene from a cylinder at pressure above 10 psi.
Long hair, loose fitting clothes, and ties are personal safety hazards around rotating equipment.
When using GTAW toweld Aluminum with Alternating Current (AC), the tip of the tungsten electrode should be
Which one of the following electrodes is not suitable for use in all positions?
A # 4 and # 6 shade welding lens used together will have the same protestion as a # 10 shade lens.
which of the following welding parameters are the most difficult to control during the welding operation using a manual arc welding process?
The selection of a correct lens shade number depends on the
Eye protection must be used to:
What is the indication at position 8 and would you accept or reject the indication to the given acceptance levels?
The device used to control the pressure on an oxyfuel cutting torch set is called?
The term low hydrogen electrode is often used for certain electrodes. What type of covering will they have?
When considering the MIG/MAG welding process which of the following metal transfer modes would be the best suited to the welding of thick plates over 25mm, flat welding position:
What is the indication at position 8 and would you accept or reject the indication to the given acceptance levels?
Skin contact with liquid oxygen can causefrostbite.
Flash burn is
Whattype of fire extinguisher should be used on electrical fires?
Federal regulation requires that hazardous information about a product be provided to all users of that product. The form used to provide this information is called a(n)
A Fusible insert for TIG welding helps:
Whichoxyacetylene flame has an excess of fuel?
What is the indication at position 10 and would you accept or reject the indication to the given acceptance levels?
What is the indication at position 4 and would you accept or reject the indication to the given acceptance levels?
What is the indication at position 4 and would you accept or reject the indication to the given acceptance levels?
Keep cables off metal tables or any grounding surfaces.
In steel the element with the greatest effect on hardness is:
Valve protection caps _____ be used for lifting cylinders.
The area identified at position 9 is the?
Three physical welding hazards are _______________________________radiation, infrared radiation, and intense visible light.
Excessiveamounts of weld spatter in the nozzle may cause
What is the indication at position 1 and would you accept or reject the indication to the given acceptance levels?
You notice that MMA electrodes with the flux covering removed are being used as filler rods for TIG welding. This should not be allowed because:
You are the only welding inspection on a cross country gas supply pipeline project .which of the following welding /fabrication stages would you consider the most important stage for your closest scrutiny?
The main usage of the arc air process is:
Always wear suitable protective clothing and _____.
What type of clothing should always be worn when using an OFC torch?
You are working with a GTAW welding machine that has a duty cycle of only 10 percent. You know to:
The three main types of MMA electrodes used for welding C and C-Mn steels are:
Fuel gas fittings are equipped with left-hand threads.
1. Remove stub ends immediately after welding; do not leave an electrode ________ with a stub end in it.
What is the indication at position 7 and would you accept or reject the indication to the given acceptance levels?
In MMA, welding penetration is principally controlled by:
What is the indication at position 3 and would you accept or reject the indication to the given acceptance levels?
Always keep a safe, _____ work area.
The surface of a fatigue crack will:
Acetylene cylinders should be stored in clean, dry, well ventilated locations free from other combustables.
9. The work clamp must be securely attached to the _____________before the start of the welding operation.
Whether used from a cylinder or from a piped-in supply, natural gas should be used just like any other fuel gas.
What is the indication at position 10 and would you accept or reject the indication to the given acceptance levels?
Abutane or propane cigarette lighter is safe around welding equipment as long asit is kept in one's pocket.
What is the indication at position 5 and would you accept or reject the indication to the given acceptance levels?
Of the following, which is not a requirement for the SMAW process?
The area identified at position 1 is the?
In a semi-automatic welding process, which of the following shielding gas/gas mixtures would normally give the deepest penetration on steel?
The maximum safeworking pressure for Acetylene is
Which weld procedure is safe to perform in wet conditions?
What shade lens should be worn or what shade should you set your auto darkening helmet to when welding:
The area identified at position 2 is the?
While flame cutting, the preheat flames (with the cutting jets open) should be?
The oxyfuel processuses oxygen and what other types of gases?
The area identified at position 9 is the?
The shielding gasmost commonly used for welding low carbon steel with GTAW is
Because acetylene burns readily, actetylene cylinders should be kept safely away from open flames.
Report any breakage or damage to tools, instruments, or machinery:
What is the indication at position 6 and would you accept or reject the indication to the given acceptance levels?
What is the term for the width of the cut produced by any cutting process?
Which of the following statments is true if applicable to a charpy vee notch impact test?
Oxygen cylinders should be protected against excessive _____.
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