Which of the following is true of barrel faced piston rings?
A. Increased service life but a less effective seal.
B. Lower cost and easier to install.
C. A less effective seal but better heat transfer.
D. A better seal and increased service life.
Answer: A
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When masonry units are laid or stacked directly over one another with the head joints in plumb vertical position, it is called _____ .
A. stack-over-stack B. stack design C. jack work D. jack-over-jack
Technician A says higher fuel pressure at wide-open throttle is the result of low manifold vacuum to the pressure regulator in the SFI system. Technician B says higher fuel pressure at wide-open throttle is maintained by the PCM in the SFI system to enrich the air/fuel ratio for better acceleration. Who is correct?
A. Technician A B. Technician B C. Both A and B D. Neither A and B
Answer the following statement(s) true (T) or false (F)
Ribbands and strongbacks are similar where the ribband is used to carry more load.
What are the sources of refrigerant system contamination?
What will be an ideal response?