单项选择题
A.Take all exhaust temperature reading
B.Check the sump oil level
C.Verify proper lube oil pressure
D.All of the above
单项选择题 Which of the following conditions would cause carbon deposits to form in the piston ring belt of a diesel engine?（）
单项选择题 The high air velocity leaving the compressor of an exhaust gas turbocharger is converted to pressure in the （）
单项选择题 When attempting to restart a warm high-speed engine, which of the following reactions can you expect?（）