welding safety

How DC motors operate? Magnetic lines of force are continuous and always form closed loops; Magnetic lines of force do not cross. Armature: (Definition) The rotating windings of a DC motor. The ____ is a movable electromagnet located between the poles of another fixed permanent (field) magnet as shown. Armature A twisting force called ______ must be developed. _____ is produced by mounting a loop in a fixed magnetic field and as long as the fields of the magnet and armatu...

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7 pages

Written in 2023/2024

Grade A+

BRAINBOOSTERS

no postweld cleaning is necessary Since there is no flux in GTAW welding, ____________________. rear deflector material and a face shield. When a hard hat is required while welding, use one that allows the attachment of _____________________. any welding or cutting Approved fire extinguishers must be available before ____________________. has little or no cleaning action Clean the steel plate before welding to remove mill scale, because the direct current electrode negat...

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2 pages

Written in 2023/2024

Grade A+

BRAINBOOSTERS

under strict safety guidelines, which of the following should be used to discharge capacitors before working on de-energized circuits. - CORRECT ANSWER safety shorting probe for safety, assume that any facility constructed before 1980 has? - CORRECT ANSWER asbestos with of the following is the threshold at which a power source is considered high voltage in the context of safety? - CORRECT ANSWER over 600V- 600Volts insulated gloves must be inspected by the user? - CORR...

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3 pages

Written in 2023/2024

Grade A+

ACELEARNERS

NCCER WELDING SAFETY COMPLETE COMPILATION BUNDLE|VERIFIED FOR ACCURACY

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25 items

BRAINBOOSTERS

A charcoal filter in an air-purifying respirator should be changed _____. when the wearer detects any taste or smell A document issued by the site manager that allows a welder to perform operations with a potential risk of fire is a _____. hot work permit All of the following fabrics may be worn around sources of sparks or high heat except _____. polyester An exhaust hood should be located _____ the source of welding fumes. four to six inches away from An oxygen l...

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2 pages

Written in 2023/2024

Grade A+

BRAINBOOSTERS

1. goggles or safety glasses sleeves and pants 3. helmet with #10 shade lens 4. close-toed shoes er gloves List 5 items of proper clothing and welding attire. -Electric Shock -Fumes & Gasses -Flash Fire -Thermal Burns -Arc Rays (infrared & ultraviolet) List the 5 hazards of arc welding. -Fumes & Gasses -Flash Fire -Thermal Burns -High Pressure Cylinders -Infrared Rays/Heat List the 5 hazards of oxyfuel welding/cutting. Industrial Noise What is the universal ...

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5 pages

Written in 2023/2024

Grade A+

BRAINBOOSTERS

1) T F Do not chip welds without some kind of suitable protection over your eyes. True 2) T F It is not safe to arc weld bare handed. True 3) T F You need not warn others in the arc welding area before you start to weld, because they will see the light when you begin. True 4) T F Cool a hot piece of steel or write "hot" on it when you leave it in the shop, so that others will not come in accidental contact with the hot steel. True 5) T F Welding galvanized metal...

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9 pages

Written in 2023/2024

Grade A+

BRAINBOOSTERS

List 5 items of proper clothing and welding attire. 1. goggles sleeves on shirts 3. helmet 4. no loose threads or holes s Name the two light rays produced when welding that can harm the eyes. 1. ultraviolet 2. infrared Name the clothing condition that makes them very susceptible to catching on fire. loose threads, holes, or oily If you must weld near a flammable, such as wood, what should you do? Person on fire watch Who should do the wiring and repair of th...

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2 pages

Written in 2023/2024

Grade A+

BRAINBOOSTERS

Accidents are made more likely for employees in the age group a. 18 and under Body protection while welding is best provided by wearing c. Cotton clothing Which of the following is a correct statement c. The recommended shade for SMAW welding is 10-14 The potentially toxic coating that is used in galvanized metal is a. Zinc To make sure your respirator provides proper protection you must__each time you wear it b. Positive and Negative fit test must be performed ...

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2 pages

Written in 2023/2024

Grade A+

BRAINBOOSTERS

Safety is of paramount and horseplay will not be tolerated Good ventilation is required to prevent the buildup of oxygen fuel gas and toxic fumes Oxygen itself will not burn but the presence of pure oxygen will serve to accelerate combustion Oil and grease in the presence of oxygen can ignite and burn violently Clothing should include Long sleeve shirt and pants no matches or lighter in shirt pockets and tape pockets shut Hat turned backwards to protect from sl...

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2 pages

Written in 2023/2024

Grade A+

BRAINBOOSTERS

WHICH HARMFUL GAS WILL BE PRODUCED FROM THE INTENSE UV RADIATION ON THE SURROUNDING AIR? Ozone ONE OF THE PRIMARY BENEFITS OF GTAW IS THE FACT THAT VENTILATION IS UNECESSARY TRUE OR FALSE False True or False GTAW PRODUCES MORE VISIBLE LIGHT RAYS THAN FCAW WELDING? True GTAW USES A CONSUMABLE ELECTRODE TRUE OR FALSE FALSE WHAT DOES THE TERM " AUTOGENOUS " MEAN IN RESPECT TO GTAW WELDING ? A WELD PRODUCED WITHOUT THE USE OF A FILLER ROD . WHAT METALS ...

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15 pages

Written in 2023/2024

Grade A+

BRAINBOOSTERS

Worn motor bearings are most to result in a(n)___. continuous overload A high-level short circuit current may exceed ___. 50,000A` Accidental contact between an electrical conductor and a grounded enclosure is called a(n)___. ground fault Most arcing faults begin as ___. ground faults A plug fuse with a hexagonal cap has a maximum amperage rating of ___. 15A Under normal operation and at currents near its ampere rating, a fuse operates as a ___. conductor...

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6 pages

Written in 2023/2024

Grade A+

BRAINBOOSTERS

increase If the wire speed is increased during GMAW or FCAW work, the voltage must __________________________. tungsten In GTAW, the torch holds a (an) __________________ electrode. 120 When tapering the point on a tungsten electrode, use ______-grit grinding wheels or sanding belts for finishing. the wire to fuse to the tip If the welding voltage is set too high, the arc will be too long and could cause __________________________________________________________. ...

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8 pages

Written in 2023/2024

Grade A

BRAINBOOSTERS

What is the purpose of a sealing fitting (seal off) To minimize the passage of gas vapors and flames through a conduit. What is article 344 of NEC Will be covering RMC or Rigid metal conduit What is one characteristic of aluminum conduit? It is more resistant to wet environments. When installing EMT or electrical metallic tubing it must? be supported every 10 feet EMT is often referred as? Thin wall type conduit. A type of conduit body with a 90° connecto...

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7 pages

Written in 2023/2024

Grade A+

BRAINBOOSTERS

NEC Article 250 ______. is the primary governing article for the proper use and installation of grounding and bounding. Suppose a loose connection has been exposed bare conductor and it contacts the edge of a metal enclosure. Is this an example of a short circuit or a ground fault? ground fault A single-phase system has two legs, Leg A and Leg B. If Leg A is carrying 50A and Leg B is carrying 45A, the current carried by the neutral is _____. 50A-45A=5A (Leg A- Leg B) Assu...

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7 pages

Written in 2023/2024

Grade A+

BRAINBOOSTERS

NCCER Millwright Level II Module 7 Gaskets and Packing exam questions with 100% correct answers(verified for accuracy)

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21 pages

Written in 2023/2024

Grade A+

BRAINBOOSTERS

Welding current is transferred from the electrode holder, through the ___ and into the work Wire core of the electrode The harmful oxygen and hydrogen present in the atmosphere surrounding a molten weld is pushed away from the weld by the ____ created during the welding process Gaseous shield of carbon dioxide The purpose of the specifications written by the American welding society (aws) is to set standards that all manufacturers must follow when manufacturing ____ Welding cons...

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3 pages

Written in 2023/2024

Grade A+

BRAINBOOSTERS

GTAW If you see the label TIG on a welding machine, that machine is considered to be what kind of welding machine? oxygen During the GTAW process, UV radiation in the atmosphere near the weld can ionize ___________________. direct current electrode negative (DCEN) GTAW is most commonly performed using ___________________. 1/2 inch High voltage, high frequency current creates a very stable arc that is able to jump a gap of about _____________________. arc starting ...

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3 pages

Written in 2023/2024

Grade A+

BRAINBOOSTERS

flux A shielding gas can be generated entirely from the ____________________ in the electrode core. (self shielded FCAW-S) rear deflector material If a hard hat is required for the environment, use one that allows the attachment of ____________________. flash sheids When preparing to practice welding, set up ____________________ around the welding area. 30 to 37 1/2 V-groove weld coupons must be beveled at _________to___________degrees for carbon steel or low alloy plate...

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2 pages

Written in 2023/2024

Grade A

BRAINBOOSTERS

The modern word for plumber is derived from the Latin word for A person who works with lead LEED applies to all areas of the profession, except Renovation Water that comes from laundry and bathtubs and reused in known as Graywater Suggested national plumbing standards are called Model codes You are offered a job by another contractor before you have fulfilled your current obligations. The professional response is to Ask the contractor to wait until you have met y...

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18 pages

Written in 2023/2024

Grade A+

BRAINBOOSTERS