单项选择题
A.testing for the mechanical load and the thermal load
B.inspecting thermal and mechanical condition of the engine
C.inspecting each system and exhaust temperature
D.testing for compress pressure and explosion pressure
单项选择题 During the diesel engine running, the water level of FW expansion tank should normally kept in the （） level of glass tube.
单项选择题 The normal color of the exhaust gas of the diesel will be （）
单项选择题 During the running of the diesel engine, if the supply of cooling water is interrupted or the temperature of cooling water out of the cylinder is too high, the duty engineer should （）