What is R-134a chemically? It is referred to as what?
What will be an ideal response?
HFC-134a
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____ welding is a process for joining similar and dissimilar metals by introducing high-frequency vibrations into the overlapping metals in the area to be joined.
A. Resistance B. Inertia C. Laser beam D. Ultrasonic
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This method of casting injects molten nonferrous metal into a steel or iron die under high pressure, where castings are produced quickly and economically.
a. centrifugal casting b. die casting c. permanent casting d. sand casting
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What causes the overload of a starter to open and disable the power circuit?
What will be an ideal response?
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A(n) ____ is a device used to measure orientation in space.
A. GPS B. gyroscope C. accelerometer D. switch
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