Why has biodiesel become popular?
What will be an ideal response?
Biodiesel is becoming increasingly popular because many people and countries are
becoming conscious of the benefit of using fewer fossil fuel products, and biodiesel is
another alternative fuel source. It can be made from recycled food oil, and diesel engines
were originally designed to run on vegetable oil anyway. Present day diesel engines are
easily converted to run off biodiesel, and biodiesel produces less harmful emissions
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A green LED maintains a constant VLED = 2V independent of the current ILED flowing through it. The LED connects to supply VS = 5V through resistor RL = 470? to produce current ILED= ____ (x.x) mA.
Fill in the blank(s) with the appropriate word(s).
Answer the following statement(s) true (T) or false (F)
The gas must be turned off for the portion of the fuel gas piping system that is to be worked on.
Which of the following spins the fastest?
A) CD-ROM B) floppy disk C) ZIP disk D) hard drive
Before working on electrical equipment that has been locked and tagged out, a person should use a(n) ______________ to verify there isn't any potential voltage.
A. non-contact voltage detector B. electric meter C. infrared thermometer D. none of the above