Technician A says that the secondary air injection (SAI) system forces air at low pressure into the exhaust to reduce CO (Carbon Monoxide) and HC (Hydrocarbon) exhaust emissions. Technician B says that exhaust check valves are used between the AIR pump and the exhaust manifold to prevent exhaust gases from flowing into, and causing damage to, the AIR pump and valves. Which technician is correct?
A) Technician A
B) Technician B
C) Both technicians
D) Neither technician
C
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Eight technicians each work 24 hours to complete a job in 3 days. How many technicians are needed to complete a 288-hour job in 3 days??
Fill in the blank(s) with the appropriate word(s).
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To optimize performance and energy use, appliances should be run when they are _____.
a. empty b. 80 percent full c. full d. overloaded
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When coir is partially or fully substituted for sphagnum peat moss in a root substrate what happens to the limestone requirement of the mix?
What will be an ideal response?
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A final step in troubleshooting is to check the measured results with the calculated _________
A. values B. testing instruments C. analyses D. measurements
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