单项选择题 When the load is increased on a turbocharged diesel engine, the amount of increased air supplied by the turbocharger will（）

单项选择题 After changing out the fuel filters the diesel engine fails to restart, the most probable cause for this condition is a/an（）.

单项选择题 If a diesel engine starts firing, but is unable to come up normal speed, either without load or even under a small load, the cause may be （）