Provide a brief description of each of the three types of catalytic converters.
What will be an ideal response?
There are three types of catalytic converters:
1. The earliest catalytic converter, called a two-way converter, was designed to oxidize HC and CO, converting them into H2O and CO2.
2. The three-way single bed converter oxidizes HC and CO and also reduces harmful NOX into harmless nitrogen and O2. The NOX portion of the converter is called a reduction catalyst. The O2 produced in the NOX portion of the converter aids in oxidizing HC and CO.
3. The three-way dual bed converter has two chambers. A tube between the two chambers provides O2 to the rear oxidation chamber, supplied from the air pump.
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Figure 22-1
In the above figure, the normally open contact of float FS1 is used to prevent the ____________________ from energizing unless the tank is full of water.
Fill in the blank(s) with the appropriate word(s).
The stencils in a lettering template must be matched with the ____________________ of the pencil or pen tip to avoid wobbly letters
Fill in the blank(s) with correct word
What is the difference between internally and externally equalized thermostatic expansion valves?
What will be an ideal response?
What benefit is there to the student in taking the ICE exam?
A) Students that pass are admitted into the ICE institute. B) Students that pass can exempt one class in an HVACR program. C) Enhanced job opportunity D) Successful completion of the ICE exempts you from taking the EPA Certification exam.