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1. Water at the inlet of the diuserdecreases the _______a. Temperature and pressure drop

at turbineb. Temperature drop at the compressorc. Temperature and pressure drop at

the combustion camber

2. When there is a reduction inatmospheric pressure due to increasingaltitude or temperature will thereforecause a reduction in_____________.a. Thrust or BHPb. SHP or BHP.

c. Thrust or SHPd. one of the abo!e.

". #ngine power ratings during the periodwater in$ection is used are called_______ ratings as opposed to ______ratings when water in$ection is o.a. Wet thrust; dry thrustb. %r& thrust ' wet thrustc. (nl& )b* is correctd. one of the abo!e

+. The alcohol adds to the power b&pro!iding an additional source of fuel,but because the alcohol has___________.a. -ow power ecienc&b. High power ecienc&c. Low combustion efciencyd. High power ecienc&.

/. 0TS

a. Water at inlet o compressorincrease airow

b. Water at inlet of compressordecrease airow

c. Water at inlet of compressorconstant airow

d. 3ll of the of abo!e

4. When water is added at the front of thecompressor power augmentation isobtained principall& b& the !apori5ingli6uid cooling the air, thus___________.

a. Increase density and massairow.

b. %ecrease densit& and increase massair ow

c. 7ncrease densit& and decrease massair ow

d. Both )b* and )c* are correct.

8. 0TSa. Water at inlet o the diuser

increase mass airow throu!h

turbineb. Water at inlet of the diuser

constant mass airow throughturbine

c. Water at inlet of the diuserdecrease mass airow throughturbine.

d. Both )b* and )c* are correct.

9. When water in$ection is used, fuel owis not reduced and is often increased.

The increased thrust results from thea. Increase in Wa and"or Wb. %ecrease in Wac. 7ncrease in Wfd. %ecrease in Wa and:or Wf.

;. %emateriali5ed water is generall& usedto pre!ent deposit buildup oncompressor blades that will lead todeterioration of thrust and morefre6uent ______ of the compressor and

engine trimming.a. #ield cleanin!.b. 7ncrease airowc. Both )a* and )b* are correct.d. 3ll of the abo!e.

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1eo b& the use of water or wateralcohol in$ection.a. 1< to +