A metal glaze resistor is made by applying a film of metal to a ceramic rod in a vacuum.

• A. False
• B. True
• C. Cannot be determined
• D. Not applicable

Answer: (A)

The idea being tested is how metal glaze resistors are made. Metal glaze resistors aren’t formed by laying down a metal film in a vacuum. Instead, they use a glaze that contains metal oxides applied to a ceramic core and then fired in air to fuse the glaze to the surface. The resistance comes from the oxide materials in that glaze, not from a deposited metal film.

In contrast, a metal film resistor (not a glaze resistor) is built by depositing a thin metal film onto a substrate in a vacuum, which creates the conducting layer. That’s a different manufacturing path from the glaze approach. So the statement is not correct because glaze resistors use oxide-based glaze fired in air, not a metal film deposited in vacuum.