11. What color is represented as the piping parts of cooling water system? (A) Yellow (B) Blue (C) Green (D) Red

9. The followings are procedures of air running. (1)Set the ENGINE/REMOTE operation selector switch in the ENGINE position. (Alarm panel in engine room) (2)Open the pressure indicator cocks of all the cylinders. (3)Set the start/stop lever in the STOP position. (4)Hold the START switch pressing for 2 to 3 seconds to effect air running. Which one is correct? (A) (1)→(2)→(3)→(4) (B) (1)→(4)→(3)→(2) (C) (4)→(2)→(3)→(1) (D) (4)→(2)→(1)→(3)

11. What color is represented as the piping parts of cooling water system?
(A) Yellow
(B) Blue
(C) Green
(D) Red

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