Question 202Electricity & Electronics - QMED
70% to passWhich of the illustrated motors has a totally enclosed, fan-cooled (TEFC) motor enclosure? Illustration EL-0001
AA
BB
CC
DD
AI Explanation
The correct answer is A. The totally enclosed, fan-cooled (TEFC) motor enclosure is designed to prevent the ingress of dust, dirt, and moisture, while using a fan to draw air across the motor to provide cooling. This type of enclosure is well-suited for marine applications where the motor may be exposed to the elements. Based on the illustration EL-0001, option A depicts the TEFC motor enclosure. The other options (B, C, and D) may represent different types of motor enclosures, such as open drip-proof or splash-proof, which are not as well-protected from the marine environment as the TEFC enclosure.
Related Questions
Q@q.QuestionNumber:As a DC armature revolves within a stationary magnetic field, the reversals of m... Q@q.QuestionNumber:Under normal conditions, storage batteries used for starting the emergency diese... Q@q.QuestionNumber:Which figure represents the schematic symbol shown in figure "2"? Illustration E... Q@q.QuestionNumber:What type of rotor is used in the split-phase family of single-phase motors? ... Q@q.QuestionNumber:Why must accidental grounds in a shipboard electrical system be repaired as soon...
Ready to test your knowledge?
Take a Electricity & Electronics - QMED Practice ExamOfficial Resources
Want to practice with timed exams?
Download Coast Guard Exams for the full exam experience.
Get the App