Suppose You Are Offered a New Smartphone in Exchange for Thirty

question 314

Multiple Choice

Suppose you are offered a new smartphone in exchange for thirty hours of your work in your friend's garden. This is an example of

• A)money as a medium of exchange.
• B)money as a store of value.
• C)barter.
• D)money as a standard of deferred payment.

---

Definitions:

Output Air Pressure

The pressure of air delivered from a compressor or a pressurized system, useful in various mechanical and pneumatic applications.

Drum Servo Brakes

A type of brake system that uses a servo mechanism to amplify the force applied by the driver, improving braking efficiency especially in heavy vehicles.

Self-energizing

Referring to a mechanism that uses the motion or force of its operation to increase its effectiveness without needing an external power source.

Secondary Shoes

Components of a drum brake system positioned to assist in braking, usually having less wear than primary shoes.