20201 Q1:( ) A. The central control room is too hot. B. The central control room is too cold. C. The engine room is too hot. D. The engine room is too cold. Q2:( ) A. Chief engineer. B. Second engineer. C. Third engineer. D. Fourth engineer. Q3:( ) A. There is too much water leakage, pipe is old. B. There is too much water leakage, valve is old. C. There is too much oil leakage, pipe is old. D. There is too much oil leakage, valve is old. Q4:( ) A. Stop the compressor. B. Renew the pipe. C. Renew the valve. D. Stop the engine.