____ loss is due to molecule friction in the iron of an armature because of continual reversal of magnetization.

a. Mechanical
b. Eddy current
c. Hysteresis
d. Windage


c. Hysteresis

Trades & Technology

You might also like to view...

In a magnetically operated brake, the shoes are held in a released position by a magnet ____ the magnet coil is energized.

a. even if b. until c. unless d. as long as

Trades & Technology

What types of projects best foster entrepreneurial skills?

a. individual projects that are supervised b. individual projects that are unsupervised c. group projects in school d. group projects outside school

Trades & Technology

When running passes (other than the root) on open-root V-groove pipe welds in the 2G position, use stringer

beads and a slight circular or side-to-side motion to ensure fusion at the _____. a. face of the weld bead b. toes of the weld bead c. root of the weld bead d. leg of the weld bead

Trades & Technology

In older zoning systems that use a master thermostat, the other zone thermostats _____

a. cannot control the system mode of operation b. can control the system mode of operation c. can control the mode but not the zone temperature d. cannot control the mode or the zone temperature

Trades & Technology