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NCCER BOILERMAKER EXAM AND PRACTICE
EXAM NEWEST 2024-2025 ACTUAL EXAM
COMPLETE 180 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A+ ||BRAND NEW!
NCCER BOILERMAKER EXAM
At many work sites, the proper voltage is not available to power all tools. To correct the problem, use a - CORRECT ANSWER - Step down transformer
The device used when a perfectly perpendicular hole must be drilled into a surface is known as - CORRECT ANSWER - Magnetic base drill
The hydraulic tool used to reposition parts or lift heavy objects short distances is known as - CORRECT ANSWER -Porta- power
A substance composed of two or more elements, chemically joined, is known as - CORRECT ANSWER -Compound
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The heat transfer ability of a substance is also known as its - CORRECT ANSWER -Thermal conductivity
The ability of a material to undergo repeating stress or load is known as it's - CORRECT ANSWER -Tensile strength
In the SAE International system of steel designation, 4040 designates a steel that contains - CORRECT ANSWER -.40 percent carbon
In the SAE International system of steel designation, the first 2 numbers indicate the metals - CORRECT ANSWER -Alloy content
Adding nickel to steel increases its - CORRECT ANSWER - Strength and toughness
When specifying the dimensions of angle iron, the last digit indicates the materials - CORRECT ANSWER -Length
Schedule numbers for pipe products are a measure of their - CORRECT ANSWER -Wall thickness
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Cladding is placed around a metallic product in order to increase its - CORRECT ANSWER -Corrosion resistance
Ceramics are used in the construction of trash burning boilers primarily to - CORRECT ANSWER -Increase wear resistance
To prevent fume hazards, there must be at least ____ cubic feet of air for each welder. - CORRECT ANSWER -10000
A good safety practice is - CORRECT ANSWER -Writing HOT on hot metal before leaving it unattended
When pure oxygen is combined with fuel gases, the pure oxygen produces - CORRECT ANSWER -A high temperature flame needed for flame cutting
The smallest standard oxygen cylinder holds about ____ cubic feet of oxygen. - CORRECT ANSWER -85
Acetylene gas must be withdrawn from a cylinder at an hourly rate that does not exceed _____ of the cylinder capacity. - CORRECT ANSWER -10 percent
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Safety fuse plugs in the top and bottom of an acetylene cylinder are designed to ___. - CORRECT ANSWER -release acetylene gas in the event of a fire
methylacetylene propadiene (MAPP) gas, a liquefied fuel used in oxyfuek cutting, burns at temperatures almost as high as acetylene and has the stability of ___ - CORRECT ANSWER - Propane
The amount of liquefied gas remaining in a cylinder is determined by the ___ of the cylinder. - CORRECT ANSWER - Weight
The regulators used in fuel gas cylinders are often painted red and always have ____ on all connections. - CORRECT ANSWER-Left hand threads
The attachment on top of a fuel gas cylinder that allows the gas to flow in only one directions is called a - CORRECT ANSWER-Check valve
The cutting tips used with liquified fuel gases must have at least ___ preheat holes. - CORRECT ANSWER -Six
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