Explain the purpose of the electronic self-diagnostic feature. How does it communicate results?
What will be an ideal response?
The electronic self-diagnostic feature helps the technician isolate malfunctions in system operation. This type of diagnostic tool comes in the form of a light that might blink in a specific sequence or a specific number of times to indicate the possible malfunction of a component.
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The two basic types of diodes are the silicon and the _____.
a. aluminum b. germanium c. tungsten d. magnesium
Which of the following statements is true?
a. Entrained air is room air that is moving and mixing with air as it leaves a supply duct terminal. b. Primary air is also known as induced air. c. Secondary air is the air delivered to the room from the supply duct. d. The spread and drop of a diffuser should always be equal.
Una cadena debe destruirse después de haber sido reco- cida _____ veces.
a. 3 b. 6 c. 8 d. 10
CASE STUDY: Preserving Land for Public Use.