Continuous surging of turbocharger can be caused by（） ①crash stop of engine ②increased back pressure after T-Ch ③fouled or damaged turbine nozzle ring<br>A:all are correct<br>B:②and③are correct<br>C:none of the above is correct<br>D:①only is correct

Continuous surging of turbocharger can be caused by（） ①crash stop of engine ②increased back pressure after T-Ch ③fouled or damaged turbine nozzle ring
A:all are correct
B:②and③are correct
C:none of the above is correct
D:①only is correct

出自：海船船员证

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