A drip-proof motor is designed to prevent any lubricating oil from leaving any of the bearings.
Answer the following statement true (T) or false (F)
False
You might also like to view...
As part of the _____ specialty, various mechanical, chemical, and electrical pest-repellent systems and protective devices are available.
A. manufactured exterior B. pest control C. identifying device D. locker
Low-voltage equipment that is typically in contact with patients must be moisture-resistant and operate on _____.
a. 10V or less b. 15V or less c. 20V or less d. 25V or less
The control section of a DC drive uses three types of signals to evaluate motor performance: the command, feedback, and ____ signals.
A. set point B. reference C. error D. open-loop
A technician needs to check a single-phase compressor. He labels the three terminals "A," "B," and "C" and takes resistance readings of the windings. He reads 10 ohms from "A" to "B," infinity from "B" to "C," and infinity from "C" to "A." Identify the terminals.
A. A: common B: start C: run B. Cannot identify terminals: winding grounded C. A: start B: run C: common D. Cannot identify terminals: open winding