Transformer — Questions and answers

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What was a big problem with the 'secondary generator' system created by Gaulard and Gibbs?

Choices

  1. It was too heavy to carry.
  2. It had significant magnetic leakage, losing a lot of energy. ✓
  3. It only worked at night.
  4. It made electricity smell bad.

Answer: It had significant magnetic leakage, losing a lot of energy.

From page 4

What special feature did the 'ZBD' transformer from the Hungarian engineers have that made it much better?

Choices

  1. It had an open wooden core.
  2. It was painted a bright red color.
  3. It featured a fully closed iron core. ✓
  4. It used small bells to ring when power was on.

Answer: It featured a fully closed iron core.

From page 5

Who designed and built the first practical commercial AC transformer in America?

Choices

  1. George Westinghouse
  2. William Stanley Jr. ✓
  3. Eleanor Vance
  4. Thomas Edison

Answer: William Stanley Jr.

From page 6

What major disagreement did the AC transformer help to settle?

Choices

  1. A fight about the best kind of light bulb.
  2. The 'War of Currents' between AC and DC systems. ✓
  3. Who would build the tallest power pole.
  4. An argument over where to put the new city park.

Answer: The 'War of Currents' between AC and DC systems.

From page 9