

MCQOPTIONS
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1. |
_If V‚ÇÅ is the jet velocity and V‚ÇÄ is the vehicle velocity, then the propulsive efficiency of a rocket is given by$? |
A. | [2(V₀/V₁)]/ [1 + (V₀/V₁)²] |
B. | (V₀/V₁)/ [1 + (V₀/V₁)²] |
C. | V‚ÇÄ/(V‚ÇÄ + V‚ÇÅ) |
D. | V‚ÇÅ/(V‚ÇÄ + V‚ÇÅ) |
Answer» B. (V‚Äö√á√Ñ/V‚Äö√á√Ö)/ [1 + (V‚Äö√á√Ñ/V‚Äö√á√Ö)¬¨‚â§] | |