One End of a Long Uniform Log Is Raised to Shoulder

question 78

Multiple Choice

One end of a long uniform log is raised to shoulder level. An identical log is raised at its center to the same level. Raising the second log requires about

• A)the same amount of work.
• B)twice as much work.
• C)more than twice as much work.

---

Definitions:

No-voltage Drop-out

A safety feature in electrical devices that causes them to automatically switch off in the event of a voltage reduction or loss, preventing damage or unsafe conditions.

Two-wire Control

A simplified control circuit configuration that uses two wires for operation, commonly applied in direct ON/OFF control scenarios.

Mechanically Held

Refers to devices or components held in position or operated by mechanical means rather than by electrical power or magnetism.

Electrician

A skilled tradesperson who installs, maintains, and repairs electrical systems and components.