Engine_2014 : Motor Plants and Auxiliary Boilers - 245/2614
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| Cams used to activate mechanically operated air starting valves on four-stroke/cycle diesel engines should have which of the valve lift profiles listed? |
| A) Abrupt lift with a short open period, and abrupt valve seating. |
| B) Gradual lift with a short fully open period, and accelerated valve closing. |
| C) Abrupt lift giving full valve opening for a long period, with gradual valve seating. |
| D) Gradual lift giving full valve opening for a long period, with gradual valve seating. |
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