Discussion
Match the type with its typical application.
1. Permanent split capacitor 2. Capacitor start 3. Universal
P. A hand drill Q. A refrigerator compressor R. A ceiling fan
Answer: D
Correct answer: 1-R, 2-Q, 3-P
Each type suits a different duty. The permanent split capacitor machine is quiet, efficient and easily speed-controlled but has a modest starting torque - ideal for a ceiling fan. The capacitor start machine gives the high starting torque a refrigerator compressor needs. And the universal motor gives the speed and power density a hand drill requires.
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