The Speed of a Two-Speed Electromagnetic Field Type Wiper Motor

question 19

Multiple Choice

The speed of a two-speed electromagnetic field type wiper motor is controlled by ______.

• A)a stepped resistor between the wiper switch and the motor power terminal
• B)additional brushes that increase the strength of the magnetic field in the armature
• C)series and shunt field windings that increase the strength of the magnetic field
• D)All the answers are correct.

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Definitions:

Biological Clock

An innate mechanism that controls the physiological activities of an organism, such as sleep cycles, puberty, and aging.

Hypothalamus

A small but crucial part of the brain located below the thalamus, responsible for regulating many bodily functions including hunger, thirst, sleep, and emotions.

SAD

Seasonal Affective Disorder, a type of depression that occurs at a certain time of the year, usually in winter.

Depression

A common and serious medical illness that negatively affects how you feel, the way you think, and how you act, causing feelings of sadness or a loss of interest in activities once enjoyed.