A Person Doesn't Receive a Smile or a "Thank You

question 63

Multiple Choice

A person doesn't receive a smile or a "thank you" each time he holds a door for the person behind him, just most of the time. Door-holding is reinforced on a(n) _____ schedule.

• A)continuous
• B)interval
• C)partial
• D)fixed

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Definitions:

Base

A substance that is characterized by its ability to accept protons or donate electron pairs in chemical reactions.

Terminals

The end points of an electrical device or a cable where connections are made to enable the flow of electrical current.

Diode

A semiconductor device that allows current to flow in one direction only, used in electronics for rectification and signaling.

Relay

Any of a number of devices that receives a signal and then effects an action. In vehicle electrical circuits, relays are used to allow a small current circuit to control a large current circuit such as in a starter relay. Also known as a pilot.