Download Boilermaker Certification 2026 – Revised Final Examination Guide. and more Exams Mechanical Engineering in PDF only on Docsity!
Boilermaker Certification 2026 – Revised
Final Examination Guide.
The top edge may be melted or removed - Answer: If an excessive amount of preheat is used when making an oxyfuel cut, the: Inclusion - Answer: Slag trapped in a weld is an example of: True - Answer: T or F Skin contact with liquid oxygen can cause frostbite Butt joint - Answer: When the surfaces of the joint members are in the same plane with their edges meeting this is called a: Triangular - Answer: The cross-sectional shape of a fillet weld is: Produce a gaseous shield - Answer: One of the main purposes of the electrode coating is: Made of Tungsten and tungsten alloys - Answer: Electrodes used for TIG welding are made of: Tensile strength in thousands of pounds - Answer: The "70" in E-7024 stands for:
A major alloying element - Answer: The suffix - B2 (for example, E- 8018 - B2) stands for: Electrode transfer - Answer: Particles of the electrode being ejected across the arc are called: E- 6010 - Answer: An electrode which has the characteristics of a rapid solidifying puddle is: Material Safety Data Sheet - Answer: Federal regulation requires that hazardous information about a product be provided to all users of that product. The form used to provide that information is called Large fillet welds in the flat position - Answer: Electrodes that produce high rates of deposit should be used for: E- 7018 - Answer: The choice of electrode for welding medium carbon or high strength low alloy steel is: Magnetic particle - Answer: A non-destructive test method used to test discontinuities on or near the surface is: True - Answer: T or F Fuel gas fittings are equipped with left handed threads.
Change electrode angle, Reduce electrode size, Reduce current or travel speed, all of the above - Answer: To minimize undercut, one should: Concrete - Answer: One should never cut or weld directly against: Chuck - Answer: The part of the drill that holds the drill bit is: Dividers - Answer: Which of the following tools would most likely be used to lay out a circle? Shielded Metal Arc - Answer: The welding process most commonly used for hard-surfacing is: OSHA - Answer: What are the initials of the Federal organization created to ensure safe and sanitary conditions for employees: 7 3/4 - Answer: Subtract: 7 2/3 - 9 11/ 151' - Answer: A boilermaker mechanic needs 12 lengths of 1/4" membrane. Each length is to 12'7". What is the total length of membrane needed? 31' 2" - Answer: A welder needs tube sections (Dutchmen) in the following lengths: 8'10", 12' 5", and 9' 11". What is the total amount of tubing needed?
19" - Answer: Add: 1/4 +11/12+5/6+1/2= Hazardous - Answer: Vaporized metals such as zinc, cadmium, lead, chromium and beryllium are: Shielding gasses and deoxidizers, slag formers and ionizing agents - Answer: The coating on the electrodes provides: Is a low-hydrogen electrode, Has tensile strength of 110,000 PSI, Can be used in all positions - Answer: An E-11018 electrode: Amperage - Answer: When adjusting a SMAW power supply you set the: Red - Answer: Fuel gas hoses are usually colored: Class C - Answer: What type of fire extinguisher should be used on electrical fires? Compressive strength - Answer: ______________ of the metal indicates its ability to resist crushing. Oil - Answer: What should one NEVER use on gas cylinders, regulators, connection, and hoses?
constant current - Answer: The SMAW process uses what type of power supply? 7 - Answer: How many minutes can a 300 amp welder with a 70% duty rating be operated safely in a ten minute period if it is being operated at a 300 amp setting? Flammable gases - Answer: The oxyfuel cutting process using oxygen and what other types of gases? finger nailing - Answer: When an electrode burns off faster on one side than the other, it's known as: Tensile - Answer: The property of metal that resists forces acting to pull it apart is its _________ strength. Amount of welding current being used - Answer: The selection of a correct lens shade number depends on the: lack of fusion - Answer: The failure of a weld bead to fuse the groove walls on to another bead is called: Lack of fusion - Answer: The failure of a weld bead to fuse the groove walls on to another bead is called: Undercut - Answer: Burning away of the base metal at the toe of the weld is called:
Alternating - Answer: The kind of electricity that reverses the direction of current flow regularly is called: Magnetic fields - Answer: The tendency of the arc to wander away from its intended path is caused by: 6G - Answer: A groove weld in the 45 degree position is: Joining by melting - Answer: Fusion is a term used in welding that means: Argon - Answer: The most commonly used shielding gas for most TIG welding is: Volts across the arc - Answer: The heat energy across the arc is produced by the: A change in arc length - Answer: Arc voltage can be changed by the operator by: A poor connection - Answer: When a hot spot is found around the electrode holder or ground clamp it indicates: Greater than the acetylene working pressure - Answer: While cutting with acetylene, the oxygen working pressure is: Electrode diameter - Answer: The arc length should about equal the:
