Two technicians are discussing a catalytic converter. Technician A says the exhaust mixture must fluctuate between rich and lean for the best efficiency. Technician B says the air-fuel mixture must be leaner than 14.7:1 for best performance from a three-way catalytic converter. Which technician is correct?
A) Technician A B) Technician B C) Both technicians D) Neither technician
A
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The first estrus the mare will come into after giving birth is called ____________________.
Fill in the blank(s) with the appropriate word(s).
Given the cobweb adjustment to price and quantity in the market below, which of the following statements is most correct?
A) The price in 2013 would fall to $85.
B) The price in 2013 would fall to $30.
C) The producer's decision in 2013 is to supply 100 units of output.
D) None of the above.
The natural microbial oxidation of nitrogen released by organic matter mineralization is a major source of soil acidity
Indicate whether the statement is true or false
An IAT is being tested. After the vehicle has been allowed to cool for several hours, a scan tool is used to observe the IAT sensor reading. When compared to the engine coolant temperature (ECT), the two temperatures should be within how many degrees F of each other:
A) 10 B) 25 C) 5 D) 15