| Excessive mechanical and pulsating vibrations developed in a main propulsion diesel engine may be more likely to cause damage to an attached __________. |
| A) scavenged air pump because it is designed for steady state operation rather than pulsating gas load |
| B) reciprocating scavenge pump because of its direct linkage to the crankshaft |
| C) centrifugal cooling water pump because of the close tolerances required between the impeller rim and the volute |
| D) gas driven turbocharger because it has a wide speed range, high operating temperatures and close tolerances. |
