Which of these is NOT used as an octane improver?
A) Alcohols B) Metallic compounds
C) Aromatic hydrocarbons D) All of these are used to improve octane
D
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The electrical connections of airflow switches are ____ those of liquid flow switches.
a. very different from b. similar to c. derived from d. identical to
For congressional Republicans, one of the most troubling aspects of the Southern states' quick restoration to the Union was that
A. with the black population fully counted, the South would be stronger than ever in national politics and Democrats could possibly regain control of Congress in the near future. B. President Johnson would likely be defeated in the 1868 presidential election. C. the majority white South might be represented by black Congressmen. D. a high tariff might be reinstituted. E. None of these choices are correct.
?How wide should the test strips be for testing the 10 gauge to 14 gauge thick carbon steel butt, lap, and tee joint welds?
A. ?1 in (25 mm) B. ?1 ½ (37 mm) C. ?1/8 in (3 mm) D. ?3 in (74 mm)
Refer to the figure. Assume 2" PVC. Find c-c of K if J=8"
Fill in the blank(s) with the appropriate word(s).