What is the name for weld pins which have a pre-assembled washer?
a. Cup-head weld pins
b. Disc-head weld pins
c. Self-retaining pins
d. Pre-assembled weld pins
a. Cup-head weld pins
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____ uses a high-pressure jet of gas to blow the molten or vaporized material out the bottom of the cut.
A. Laser beam cutting B. Air carbon arc cutting C. Oxygen lance cutting D. Laser beam drilling
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How would a commercial truck diesel engine with a displacement of 6.8 liters be classified?
A. small bore B. medium bore C. large bore D. heavy-duty bore
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In colony breeding, one male is put with two to ____________________ females
Fill in the blank(s) with correct word
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If a dead plant is biodegradable, you can use it for ____
a. landscaping c. compost b. laboratory experiments d. decoration
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