Pitting, blistering, and corrosion are all indicators of _____
A) incorrect seal composition B) improperly installed components
C) mechanical failures D) improper shaft alignment
A
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Humans have been growing poultry for almost as long as they have been involved in agriculture
Indicate whether the statement is true or false
Explain the meaning of the numbers in the SAE and AISI classification systems.
What will be an ideal response?
A slip connector is installed on the short dimension of a rectangular galvanized metal duct system.
Answer the following statement true (T) or false (F)
How can infrared light be used to detect refrigerant?
A) Refrigerant turns the infrared light blue. B) Infrared sensors change resistance in the presence of refrigerant. C) Infrared sensors interact with oxygen at different rates depending on the refrigerant exposure. D) Most gasses absorb infrared light at a characteristic frequency.