问题：
[单选] A cast steel strong back is fitted in way of the combustion space to help absorb （）.
flame temperature。fuel oil。air movement。gas force。
问题：
[单选] A charge of fresh air is drawn into the engine cylinder and then （） by the moving piston（） very high pressure.
pressed；to。pressurized；with。pushed；in。compressed；to。
问题：
[单选] A common trouble with the fuel pump plunger or fuel valve spindle is （）.
water leakage。steam leakage。oil leakage。air leakage。
问题：
[单选] A common trouble with the fuel pump plungers or fuel valve spindle is （）.
broken down。stuck。oil leakage。carbonized。
问题：
[单选] A diesel engine is similar to a gasoline engine except that the former has no （）.
cross-head。cylinder。connecting rod。spark plug。
问题：
[单选] A diesel engines crankcase oil level is found to be too high√ You should suspect that （）.
the engine was over filled。there might be a fuel leak。there might be a water leak。all of the above。
问题：
[单选] A distance piece, known as a （） may be interposed between the rod and the bearing housing.
bearing shell。bearing liner。compression plate。lead wire。
问题：
[单选] A distance piece, with ground faces, known as a compression plate, may be interposed between the rod and the beating housing, its thickness being chosen to ensure the correct （）.
compression pressure。compression test。compression ratio。compression clearance。
问题：
[单选] A distance piece, with ground faces, may be interposed between the rod and the bearing housing, its thickness being chosen to ensure the correct （）.
expansion ratio。pressure ratio。compression ratio。clearance ratio。
问题：
[单选] A governor automatically controls engine speed by regulating （）.
fuel supply。firing order。engine load。oil level。
