Technician A says that when checking engine oil, it is normal for the oil to catch fire if lit by a match. Technician B says that oil on the dipstick that catches fire when lit is a sign of fuel in the oil. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
B
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When inspecting a cracked DPF core, there is evidence of scorched fuel in the substrate. What should be done after replacing the DPF?
A. send a fuel sample off for testing B. change the fuel filters C. replace all the injectors D. perform a cylinder balance test
It can take as long as thirty years before the adverse effects of exposure to a particular chemical becomes recognized. This delay is known as ____________.
Fill in the blank(s) with the appropriate word(s).
Most panel siding is shaped with ____ edges for weathertight joints.
a.shiplapped b.beveled c.square d.grooved
? Identify and state the historical significance of the "smoking gun" tape.
What will be an ideal response?