The ozone layer occurs in the stratosphere
Indicate whether the statement is true or false
True
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Carbon monoxide is a by-product of combustion.
Answer the following statement true (T) or false (F)
Flanges always have an even number of holes in graduations of _____.
a. two b. four c. six d. eight
Why does retarding injection timing tend to produce higher HC emissions?
A. increases injection lag B. reduces time available for combustion C. increases ignition lag D. increases combustion temperatures
Technician A says that a blended torque transmission (BTT) provides for continuously variable output ratios. Technician B says that for a planetary gearset such as those used in BTTs to produce an output, one of the three planetary members must be held stationary. Who is correct?
A. Technician A only B. Technician B only C. Both A and B D. Neither A nor B