Answer the following statement(s) true (T) or false (F)
1. A starting relay is located away from the motor.
2. One disadvantage of the hot-wire relay is that it must be permitted to cool after each operation.
3. When testing the current relay, an ohmmeter can be used to check the continuity of the contacts.
4. The amount of voltage necessary to energize the coil of a potential relay is smaller than line voltage.
5. The solid-state relay can be used to replace almost any hot-wire relay.
1. TRUE
2. TRUE
3. TRUE
4. FALSE
5. FALSE
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Why is it commonly difficult to grow new crops on land that has suffered from soil erosion?
What will be an ideal response?
Copper, silver, and aluminum are good insulators of electricity.
Answer the following statement true (T) or false (F)
Metal roofing is available with as much as ____% recycled content, and the waste is generally fully recyclable.
A. 60 B. 70 C. 85 D. 100
Gold is ____.
A. a poor conductor of electricity B. extremely malleable C. corrosion resistant D. both b and c E. all of the above