Timers Are Used To

question 2

Multiple Choice

Timers are used to:

• A)turn outputs on and off after a time delay.
• B)turn outputs on or off for a set amount of time.
• C)keep track of the time an output is on or off.
• D)all of these.

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Definitions:

Disinfectants

Substances used to kill or inhibit the growth of harmful microorganisms on surfaces, objects, or skin.

Hydrogen

A colorless, odorless, tasteless, and highly flammable diatomic gas that is the simplest and lightest element, often used in chemical reactions and as a potential clean energy source.

Oxygen

A chemical element with symbol O and atomic number 8, essential for most forms of life and a critical component of the Earth's atmosphere.

Water

A transparent, odorless, tasteless, and nearly colorless chemical substance that is the main constituent of Earth's streams, lakes, and oceans.