What is a relay?
What will be an ideal response?
A relay is an electrically operated switch that uses an electromagnet to open or close a set of electrical contacts. Normally only a small amount of current is required to energize the electromagnet. This allows for a device with a high current rating such as an electric heater to be operated by a control relay operated by a low current signal. The control wires can be much smaller and separate from the large main supply lines required for the main load.
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In what type of filter does the feed enter at the top of the filter, cascade down though a filtering medium, and exit at the bottom of the filter?
A. Gravity B. Vacuum C. Suction D. Mechanical
Houses used to keep rabbits are referred to as ____________________
Fill in the blank(s) with correct word
The following are needed for good phosphorus uptake: pH of 6.5, moist soil, oxygen, and warmth
Indicate whether the statement is true or false.
You are on a steep downgrade and have reached your safe speed of 40 miles per hour you will apply the service brakes until your speed drops to
a. 25 miles per hour
b. 30 miles per hour
c. 35 miles per hour