When a diesel engine is operating at its best efficiency, how much of the potential heat energy of the fuel is discharged as rejected heat?
A. 20 percent
B. 40 percent
C. 60 percent
D. 80 percent
Answer: C
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_____ se utilizan para fabricar cubiertas para válvulas con brida.
a. Las rebordeadoras b. Las plegadoras c. Las máquinas para uniones Pittsburgh d. Todas las anteriores.
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When magnesium burns, what type of fire would it be classified as?
A. class A B. class B C. class C D. class D
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?All of the following statements are correct EXCEPT:
A. ?NLGI sets the standards for testing greases. B. ?The prefix GC is the highest designation for automotive wheel bearing greases. C. ?The prefix LB is the highest designation for automotive chassis greases. D. ?Greases are named for their thickening agent.
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Gail Borden began canning condensed milk in:
A. 1861 B. 1884 C. 1919 D. 1960
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