In a typical electronically controlled diesel engine, what force is used to time the hydraulic opening of the exhaust valves in an internal compression type brake?
A. electric solenoid
B. injector train movement
C. valve train movement
D. cylinder compression pressure
Answer: C
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When planting a containerized plant, how wide should the planting hole should be excavated?
a. the same diameter as the container b. twice the diameter as the container c. three times the diameter of the container d. none of the above
The orthographic methow of drafting is used to show three basic views and they are ________, _________ and __________.
Fill in the blank(s) with the appropriate word(s).
Las barreras de humedad de láminas de revestimiento de aluminio se utilizan para ____.
a. mantener el agua fuera del aislamiento b. mantener el agua fuera del tubo c. evitar que el agua se escape del aislamiento d. proteger el aluminio de la corrosión
Why are manufacturers replacing relay logic systems with solid state logic systems?
A) Solid state logic systems operate faster, use less power, and can control more functions. B) Most HVACR technicians are already trained on solid state logic systems. C) Solid state systems are less prone to problems due to noisy voltage signals. D) Solid state systems are simpler in design.