Answered: Generally ………. metal sheaths are used…

Generally ………. metal sheaths are used up to ° C and ceramic sheaths above this temperature. A) 1500 °C B) 500 °C C) 1200 °C D) 250 °C E) 2500 °C

EBK ELECTRICAL WIRING RESIDENTIAL

19th Edition

ISBN:9781337516549

Author:Simmons

Publisher:Simmons

Chapter7: Luminaires, Ballasts, And Lamps

Section: Chapter Questions

Problem 15R: A good rule-of-thumb to estimate the expected life of a motor, a ballast, or other electrical...

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Concept explainers

Gear Motor

A gear motor is a combination of a gearbox and an electric motor. This combination of two systems is used for efficient usage of the motor. It makes a cost-effective solution for high torque, low-speed applications. These motors are used in our household as, garage door openers, alarm clocks. In commercial areas, hospital beds, cranes.

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5 - Generally ………. metal sheaths are used up to ° C and ceramic sheaths above this temperature.
A) 1500 °C

B) 500 °C

C) 1200 °C

D) 250 °C

E) 2500 °C

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