Technician A says that a soldering gun is generally better suited to delicate work on circuit boards than a soldering iron. Technician B says using a soldering torch heats up faster than a soldering iron. Who is right?

Both the technicians B is correct.

Explanation:

For delicate work on circuit boards the soldering iron is suitable for working because it has various sizes of iron light is weight and applies no almost force on the work piece. Whereas the solder gun forces the molten filling solder on to the work piece.

The soldering torch directly releases flame on the work piece and produces high heat so it heats the work piece faster. While a soldering iron heats up slowly and uniformly.

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2