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Question 1
FRP is made from what material arrangement?
Correct Answer:
Alternating layers of fiberglass cloth and resin over a mold.
Explanation:
Fiber Reinforced Plastic is a composite made by embedding reinforcing fibers in a polymer resin. In most FRP parts, fiberglass cloth is laid up over a mold and saturated with resin, with multiple layers added before the resin cures. The fiberglass provides strength and stiffness, while the resin binds the fibers and transfers loads between layers, giving a strong, lightweight material. This arrangement—fiberglass fabric plus resin laid over a mold and cured—is what defines FRP, rather than metal substrates with coatings, solid plastics with fillers, or thermoplastic blends that don’t use a fiber-reinforced resin matrix.
Question 2
Is smoke produced by FCAW greater than with GTAW and GMAW?
Correct Answer:
Yes
Explanation:
Smoke and fumes in welding come from the materials that decompose or react in the arc. Flux-core FCAW carries flux inside the wire; as the arc heats the flux, it breaks down into gaseous byproducts and metal oxides, which form more smoke and fumes than processes that rely mainly on shielding gas. GTAW uses a non‑consumable tungsten electrode with a shielding gas and melts the metal cleanly, producing very little fume. GMAW with solid wire also relies on shielding gas with fewer flux reactions, so its fumes are typically lower than FCAW. Because of the additional flux reactions, FCAW generally generates more smoke than GTAW and GMAW.
Question 3
Is CPVC plastic used in high-temperature installations?
Correct Answer:
True
Explanation:
CPVC is designed to withstand higher temperatures than standard PVC, so it is used for hot-water installations. Its heat tolerance means it can carry hot potable water safely, typically up to about 180°F (82°C), and in some systems up to about 200°F (93°C) under specific pressure ratings. This higher temperature resilience lets CPVC replace PVC in hot-water piping while remaining a plastic option rather than metal. Just be sure the specific CPVC product and joint method are rated for the system’s temperature and pressure, since very high-temperature or high-pressure applications may require metal piping or specialized plastics.
Question 4
Under DCEN, a thoriated 1/16 inch tungsten should be operated in which amperage range?
Correct Answer:
70 to 150 Amps
Explanation:
In GTAW with DCEN, the tungsten is negative and the arc heat is directed into the workpiece, so the electrode must carry enough current without overheating. A 1/16 inch thoriated tungsten has the right balance of size and emission for mid-to-high currents, making 70 to 150 amps the practical range. Running in this window gives a stable arc and good penetration for typical welds on many steels and thicknesses. If you drop well below 70 A, the arc can become unstable and the tungsten may not perform well; pushing above 150 A risks overheating the tip, causing instability or tungsten contamination of the weld. For thinner work or different setups, you’d adjust by using a smaller tungsten or different current.
Question 5
Does partial release mean that not all duct can be efficiently shipped?
Correct Answer:
Yes
Explanation:
Release status in a fabrication/shipping workflow determines what can be shipped. Partial release means only part of the duct is cleared for shipment; the rest remains in process. Because shipping can include only released items, you cannot ship the entire duct set in one go. That means some duct pieces will have to wait or be shipped in separate lots, reducing overall shipping efficiency. So the best answer is Yes. The other choices don’t fit: No would imply everything is released; Always would ignore the staged nature of release; Sometimes is vague, whereas partial release explicitly causes a gap between what’s released and what remains to be released, creating inefficiency.
Question 1
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About this Exam

Prepare with the Sheet Metal Trade and SMWIA 2nd Year Practice Test practice quiz. This question bank includes 10 questions covering fcaw, plastic, material, sheet, and metal. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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Sheet Metal Trade and SMWIA 2nd Year Practice Test

This practice set contains 10 questions from the matching question bank and focuses on fcaw, plastic, material, sheet, and metal. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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