Technician Asays increasing the amount of current flowing through a conductor will increase the strength of its magnetic field. Technician B says coiling a wire around a soft iron core will increase the strength of its magnetic field. Who is correct?

A. Technician A only
B. Technician B only
C. Both Technician A and B
D. Neither Technician A nor B


Answer: C

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Technician A says heavy-duty and regular coil springs have the same wire diameter. Technician B says a heavy-duty coil spring has a shorter free height than a regular-duty coil spring. Who is correct?

A. A only B. B only C. Both A and B D. Neither A nor B

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Some joints, such as the lap joint, may never need 100% ____; however, they do need 100% ____.

A. fusion, penetration B. penetration, accuracy C. depth, accuracy D. penetration, fusion

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Why is refrigerant oil flow through the liquid line not a problem?

What will be an ideal response?

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When using an acetylene torch to solder or braze refrigerant lines, you should secure the tank in the horizontal position to prevent it from tipping over.

Answer the following statement true (T) or false (F)

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