When it is necessary for cam followers to travel in a path that is parallel to the axis of the cam, ____.
A. a drum cam is used
B. a cylinder with a groove machined in the surface in the shape of the cam profile is used
C. the cam displacement diagram shows two parallel lines along its entire length
D. both a and b
E. all of the above
Answer: E
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a. una cuña de acero b. una cuña de madera c. una palanca de acero d. una maza
When installing an EUP to an engine cylinder block, how should the O-rings be lubricated?
A. install dry B. fuel C. engine oil D. silicone
Which of the following is an example of an HCFC refrigerant?
A. R-12. B. R-22. C. R-32. D. R-134a.
An under vehicle inspection includes checking for _______
A) Torn drive axle shaft boots B) Exhaust system faults such as broken hangers or leaks C) Any fluid leaks D) All of the above