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(1) Accumulation of contaminates in the compressor of a turbojet engine reduces aerodynamic efficiency of the blades.
(2) Two common methods for removing dirt deposits from turbojet engine compressor blades are a fluid wash and an abrasive grit blast.
Regarding the above statements,
| | A) only No. 1 is true. |
| | B) only No. 2 is true. |
| | C) both No. 1 and No. 2 are true. |
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