Open root groove welds - Study guides, Class notes & Summaries

Nccer 29105 Base Metal PrepWelding Code A detailed listing of rules and principals applyed to welding is Requires half the weld material Compared to a single V- groove, A double V- groove weld Slower Mechanical joint preparation is _____ than thermal joint preparation Porosity The most common defect caused by surface contamination is Thermal Oxyfuel, plasma arc, or carbon arc cutting is known as what All metals should be cleaned before welding This should be done b...

Which of the following statements is true? Groove welds can be combined with fillet welds to maintain strength Open-root weld coupons generally have a bevel angle of ______________. 30 degrees Welding codes typically allow the root face on open root groove welds to be within a range of _________. 0" to 1/8" (0 to 3.2 mm) When preparing to tack weld an open-root V-groove weld coupon, align the beveled strips on a flat surface with a _________ root opening. 0" to 1/8" ...

Feather The procews of grinding a tack weld to a tapered edge Root surface The exposed face of a weld on the side opposite from where the welding was done Pad Before welding a joint in the vertical position practice running vertical weave beads by building a (blank) in the vertical position Crater When practicing horizontal open root v groove welds, pay particular attention at the termination of the weld to fill the (blank) 1/18 To practice welding open root v gr...

Closed Book Practice Questions ASME SECTION IX PRACTICE QUESTIONS AND ANSWERS 2023 The purpose of the WPS and PQR is to determine that: A. the welder is qualified B. the base metals are strong enough C. the weldment has the desired properties D. the skill of the welder C The WPS lists: A. nonessential variables B. essential variables C. ranges for 1 & 2 above D. all of the above D. QW-200.1 The PQR must list: A. essential variables B. qualification test & examination r...

equal or exceed the total specified maximum output capacities of all correct answers As stated under the OSHA standards, when a single ground return cable services more than one unit, its safe current-carrying capacity shal ____ the units which it services Open door correct answers Which of these is not an example of mechanical ventilation? polarity correct answers Direct current electrode positive in an example of ____ scratching correct answers For starting an arc, which method would ...

Annealing heat treatment that reduces the bitterness of the work carbide precipitation the process of carbides combining with chromium to create chromium carbide. thee result is a reduction of chromium and the corrosion resistance it provides. intergranular corrosion results in loss of chromium Heat Affected Zone (HAZ) the portion of the workpiece/base metal whose mechanical properties or microstructures have been or will be altered by the heat from welding, brazing, soldering, ...

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...

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...

API 653 Certification Practice Exam Open Book 68 Questions with Verified Answers An insert plate is required for a new 4 NPS nozzle (4.5" O.D.) in the shell. What is the minimum diameter for this insert? A. 4.5" B. 9" C. 12" D. 16.5" - CORRECT ANSWER D. 16.5" A welder is qualified on a plate in the 3G position. The welder is qualified for what fillet weld position(s)? A. None B. F, H C. F, H, V D. All fillets - CORRECT ANSWER C. F, H, V When must a shim be placed under...

Resolution - ANSWER-Ability of a microscope to distinguish two objects as separate What do you call a measurement of 10^-6 m? - ANSWER-Micrometer, or micron Light Microscope - ANSWER-microscope that uses a beam of light passing through one or more lenses to magnify an object What resolving power does a light microscope have? - ANSWER-0.25 micrometers Types of Light microscopes (4) - ANSWER-- Simple (Dissecting) - Compound (What we use in lab to view slides regularly) - Dark Field (...