A Technician Is Diagnosing the Cause of an Insufficient Heat

question 37

Multiple Choice

A technician is diagnosing the cause of an insufficient heat problem. He/She notices the fan is working but not providing much air flow. He/She disconnects the fan power feed wire and connects the fan to the battery using a fused jumper wire. The specification for the fan motor is 16 amps. His/Her ammeter shows 26 amps when the fan is jumped directly to the battery. What could be the problem?

• A)bad fan motor ground
• B)high resistance in the fan motor wiring
• C)shorted wiring in the fan motor
• D)All the answers are correct.

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Definitions:

Ice Sheet

A mass of ice of considerable thickness and more than 50,000 square kilometers in area, forming a nearly continuous cover of ice and snow over a land surface.

Felsic

A term used in geology to describe igneous rocks that are rich in light-colored minerals such as quartz, feldspar, and muscovite.

Pyroclastic Flows

High-density mixtures of hot volcanic ash, pumice, rock fragments, and volcanic gas that move away from the volcano at high speeds during an explosive eruption.

Mudflows

Rapid downhill movements of water-saturated earth material, primarily composed of mud and often triggered by heavy rainfall or volcanic activity.